Thematische Bibliographien / Wireless Radio Channel

Inhaltsverzeichnis

  1. Zeitschriftenartikel
  2. Dissertationen
  3. Bücher
  4. Buchteile
  5. Konferenzberichte
  6. Berichte der Organisationen

Auswahl der wissenschaftlichen Literatur zum Thema „Wireless Radio Channel“

Autor: Grafiati
Veröffentlicht am 23. Juni 2021
Zuletzt aktualisiert am 1. Februar 2022

Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an

Wählen Sie eine Art der Quelle aus:

Machen Sie sich mit den Listen der aktuellen Artikel, Bücher, Dissertationen, Berichten und anderer wissenschaftlichen Quellen zum Thema "Wireless Radio Channel" bekannt.

Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.

Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.

Zeitschriftenartikel zum Thema "Wireless Radio Channel"

1

Dai, Yuan-Kao, Li-Hsing Yen und Jia-Wei Su. „Toward an Access Infrastructure for Mobile Cloud“. International Journal of Grid and High Performance Computing 5, Nr. 3 (Juli 2013): 6–19. http://dx.doi.org/10.4018/jghpc.2013070102.

Der volle Inhalt der Quelle
Annotation:
The provision of mobile cloud service calls for a wireless access infrastructure that offers high bandwidth to mobile users. Among all enabling technologies, wireless mesh networks (WMNs) have the advantage of low deployment cost and widely available user equipments. To provide more bandwidth, access points in WMNs are commonly equipped with multiple wireless interfaces (radios) that can operate on multiple non-overlapping channels in parallel. The objective of channel assignments in a multi-channel, multi-radio MWN is to reduce co-channel interference experienced by links so as to increase network capacity while maintaining network connectivity. Prior studies addressing this issue majorly considered effects of co-channel interference at the link layer. In this study, the authors consider co-channel interference at the physical layer. Furthermore, most existing methods are based on heuristic or game theory. This study applies simulated annealing technique to the channel allocation problem. The objective function for this approach is defined as the total signal-to-interference radio (SIR) experienced by each link. To maintain network connectivity, the proposed approach limits the set of assigned channels for each radio. Experimental results show that, compared with traditional heuristic-based and game-theoretic approaches, the proposed simulated annealing algorithm results in more operative links.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Heider, Inaam Abbas. „Improvement of Fading Channel Modeling Performance for Wireless Channel“. International Journal of Electrical and Computer Engineering (IJECE) 8, Nr. 3 (01.06.2018): 1451. http://dx.doi.org/10.11591/ijece.v8i3.pp1451-1459.

Der volle Inhalt der Quelle
Annotation:
Fading channel modeling is generally defined as the variation of the attenuation of a signal with various variables. Time, geographical position, and radio frequency which is included. Fading is often modeled as a random process. Thus, a fading channel is a communication channel that experiences fading. In this paper, the proposed system presents a new design and simulate a wireless channel using Rayleigh channels. Rayleigh channels using two approaches (flat and frequency-selective fading channels) in order to calculate some path space loss efforts and analysis the performance of different wireless fading channel modeling. The results show that the bite error rate (BER) performance is dramatically improved in the value of signal to noise ratio (SNR) is equal to 45dB. Finally, the experimental results show that the proposed method enhances the performance of fading channel modeling by reducing the error of BER when the SNR is reduced also. Moreover, the more accurate model is Rayleigh model which can be considered for developing fading channel model.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Ning, Zhao Long, Yu Huai Peng und Lei Guo. „Performance Comparison for Routing Protocols in Multi-Radio Multi-Channel Multi-Hop Wireless Networks“. Advanced Materials Research 433-440 (Januar 2012): 5107–12. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.5107.

Der volle Inhalt der Quelle
Annotation:
In this paper, we consider a TDMA-based wireless network and address two major issues, fading and interference, existing in wireless networks since fading will lead to low quality links and interference may lead to unfair channel allocation. Because channel allocation selects the proper channel for each logical link and routing determines through which logical links the packets should be forwarded, there is strong interaction between MAC layer and network layer. In this paper, we seek for the performance trend with more channels allocated and further compare the performances of Bellman-Ford and AODV routing protocols based on the Packet Deliver Rate (PDR) to MAC layer in multi-radio multi-channel multi-hop wireless networks. Numerical results are given and discussions as well as insights into performance aspects for multi-radio multi-channel deployment are provided.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Skvarnik, I. S., A. A. Shmakov, A. N. Shentyabin und I. V. Minin. „AUTOMATIC DEVICE FOR REAL–TIME SWITCHING TO RESERVE RADIO CHANNEL“. Issues of radio electronics, Nr. 5 (08.06.2019): 39–47. http://dx.doi.org/10.21778/2218-5453-2019-5-39-47.

Der volle Inhalt der Quelle
Annotation:
Guaranteed delivery of information via communication channels remains an urgent task for a number of industries. However, automatic transition to the reserve for analog communication channels requires non‑standard solutions. In the proposed device, the decision on switching to the reserve is made on the basis of spectral analysis of signals transmitted via the main and backup communication channels. A wired communication channel is considered as the main channel, and a wireless broadband access channel is used as a backup channel. The signal transmitted over the wireless broadband access is taken as a reference because it is of high quality and which we can influence when building a network. The spectrum of analog signals is calculated on the basis of the fast Fourier transform, the implementation of which is carried out in the analog signal block based on the STM‑32 microcontroller. The device provides a transition to the reserve in real time.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Yang, Yong, Yu Liang Li und Jing Li. „Radio Channel Research in Coal Mine Laneways“. Advanced Materials Research 605-607 (Dezember 2012): 2222–26. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.2222.

Der volle Inhalt der Quelle
Annotation:
The transmission mode of wireless waves in coal mine tunnel is different from the mode in free space.The multipath propagation of wireless wave is severe in tunnel.As a result,the characteristics study of multipath propagation is very important to the design of wireless communication system in coal mine tunnel.After analyzing the multipath propagation attenuation in tunnel,the statistics of single frequency signal,narrowband signal and broadband signal are obtained.This is the foundation for the application of resisting multipath decline techniques.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Kim, Tae-Sung, Sok-Hyong Kim, Bo-Kyum Kim und Young-Yong Kim. „Exploiting Multiple Channels for Low Latency and Semireliable Broadcasting in Cognitive Wireless Sensor Networks“. International Journal of Distributed Sensor Networks 2015 (2015): 1–16. http://dx.doi.org/10.1155/2015/241208.

Der volle Inhalt der Quelle
Annotation:
In Wireless Sensor Networks (WSNs), disaster management is a crucial issue that focuses on disaster relief and recovery. Mobile sensor nodes support disaster relief and recovery by means of real-time bidirectional communication. For its high data rate requirement, IEEE 802.11 specification can be used for the radio interface of sensor nodes, and the nodes can be equipped with multiple 802.11 radios to utilize multiple channels and link data rates. Channel assignment algorithms can be applied in cognitive radio enabled networks which performs dynamic channel configuration for utilizing multiple channels. For efficient and semireliable broadcast in cognitive radio WSNs, we focus on reducing broadcast latency and achieving 100% delivery percentage. To realize these goals, in this study, we present our design for a novelChannel Assignment Algorithm for a Collision-Reduced Broadcast Tree(CA-CBT). Fundamentally, CA-CBT builds a broadcast tree and then uses several heuristic procedures to allocate collision-free channels to links on the tree. If CA-CBT fails to allocate collision-free channels due to a limited number of available channels, it allocates non-collision-free channels with the smallest number of interfering nodes. Through extensive simulations, we demonstrated that CA-CBT supports lower broadcast latency and higher delivery percentages compared with existing broadcast algorithms.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

A. Rida, Jafaar Fahad. „Improvement for performance radio frequency in wireless communication based on impulse signal“. Indonesian Journal of Electrical Engineering and Computer Science 18, Nr. 2 (01.05.2020): 903. http://dx.doi.org/10.11591/ijeecs.v18.i2.pp903-916.

Der volle Inhalt der Quelle
Annotation:
<p><span>This research presents the improved performance of mobile wireless communication channel is based on non-line of sight because the mobile propagation channel is very hard to work with direct path between the transmitter and mobile receiver because of city-based area has objects such as rise building, trees, surround structures, and other objects. The mobile wireless spread radio channels have radio propagation mechanisms as a reflection, diffraction, and scattering effect on radio signal as lessening, </span>and distortion or spread time. The most important thing to make real is that the wireless channel is a multipath radio channel. Multipath copies of the same signal with distinct amplitudes, stages and delay times for all multipaths between the transmitter and the receiver. The multipath fading is defined by its impulse response, which includes the facts about the relative time of the recipient's arrival of various indices of multipath additives. The impulse response expresses great characteristics in the time domain such the large bandwidth frequencies and the amplitude output only the value impulse response δ(t) equal to one when the value of time t=0, otherwise, the value impulse response δ(t) equal to zero in all values of the time. Over a time period reaction, the cellular radio channel could be designed as a linear filter with various impulses.</p>
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Khan, Mohammad Monirujjaman, Qammer H. Abbasi, Akram Alomainy und Yang Hao. „Performance of Ultrawideband Wireless Tags for On-Body Radio Channel Characterisation“. International Journal of Antennas and Propagation 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/232564.

Der volle Inhalt der Quelle
Annotation:
Experimental characterisation of on-body radio channel for ultrawideband (UWB) wireless active tags is reported in this paper. The aim of this study is to investigate the performance of the commercially available wireless tags on the UWB on-body radio channel characterisation. Measurement campaigns are performed in the chamber and in an indoor environment. Statistical path loss parameters of nine different on-body radio channels for static and dynamic cases are shown and analyzed. Results demonstrated that lognormal distribution provides the best fits for on-body propagation channels path loss model. The path loss was modeled as a function of distance for 34 different receiver locations for propagation along the front part of the body. A reduction of 11.46% path loss exponent is noticed in case of indoor environment as compared to anechoic chamber. In addition, path loss exponent is also extracted for different body parts (trunk, arms, and legs). Second-order channel parameters as fade probability (FP), level crossing rate (LCR), and average fade duration (AFD) are also investigated.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Wu, Chien-Min, Yen-Chun Kao und Kai-Fu Chang. „A Multichannel MAC Protocol for IoT-enabled Cognitive Radio Ad Hoc Networks“. Advances in Technology Innovation 5, Nr. 1 (01.01.2020): 45–55. http://dx.doi.org/10.46604/aiti.2020.3946.

Der volle Inhalt der Quelle
Annotation:
Cognitive radios have the ability to dynamically sense and access the wireless spectrum, and this ability is a key factor in successfully building Internet-of-Things (IoT)-enabled mobile ad hoc networks. This paper proposes a contention-free token-based multichannel MAC protocol for IoT-enabled Cognitive Radio Ad Hoc Networks (CRAHNs). In this, secondary users of CRAHNs detect activity on the wireless spectrum and then access idle channels licensed by primary users. CRAHNs are divided into clusters, and the channel to use for transmission is determined dynamically from the probability of finding idle primary-user channels. The token-based MAC window size is adaptive, with adjustment according to actual traffic, which reduces both end-to-end MAC contention delay and energy consumption. High throughput and spatial reuse of channels can also be achieved using a dynamic control channel and dynamic schemes for contention windows. We performed extensive simulations to verify that the proposed method can achieve better performance in mobile CRAHNs than other MAC schemes can.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Bo, Ai, Thomas Kürner, César Briso Rodríguez und Hsiao-Chun Wu. „Radio Wave Propagation and Wireless Channel Modeling“. International Journal of Antennas and Propagation 2013 (2013): 1–3. http://dx.doi.org/10.1155/2013/835160.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Mehr Quellen

Dissertationen zum Thema "Wireless Radio Channel"

1

Hunter, Brandon Rosel. „Channel probing for an indoor wireless communications channel /“. Diss., CLICK HERE for online access, 2003. http://contentdm.lib.byu.edu/ETD/image/etd196.pdf.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Naveed, Anjum Computer Science &amp Engineering Faculty of Engineering UNSW. „Channel assignment in multi-radio multi-channel wireless mesh networks“. Awarded by:University of New South Wales. Computer Science & Engineering, 2008. http://handle.unsw.edu.au/1959.4/41500.

Der volle Inhalt der Quelle
Annotation:
Channel assignment in wireless mesh network (WMN) aims at improving the network throughput by utilizing multiple orthogonal frequency channels to minimize the interference. Interference can be categorized as coordinated and non-coordinated, depending upon the relative location of the interfering links. Compared to coordinated interference, non-coordinated interference has a severe adverse impact on throughput. This thesis is based on the hypothesis that the network throughput can be improved significantly, if channel assignment minimizes non-coordinated interference with priority. We propose a static and centralized channel assignment scheme CCAS to show the effectiveness of the hypothesis. The cluster-based approach of CCAS minimizes non-coordinated interference with reduced complexity. CCAS improves the network throughput by upto 80%, compared to the existing schemes. We propose topology control scheme MATS that constructs low interference multipath network topology using a subset of links from physical topology. We report an additional improvement of upto 10% in the network throughput, when CCAS assigns channels to the links selected by MATS. In the final part of the thesis, we formulate generalized channel assignment as an optimization problem, accounting for real network traffic. The objective of the problem is to select the channels for links such that maximum incident traffic can be transmitted over the links, while ensuring a fair distribution of throughput amongst links and elimination of non-coordinated interference. For a given network and incident traffic, the solution to this problem generates the channel assignment resulting in optimal network throughput. We propose dynamic and distributed scheme LYCAS as an approximate solution to the problem. LYCAS employs MATS to construct network topology and cluster-based approach of CCAS to minimize non-coordinated interference. In addition, it periodically updates the assignment of channels to adapt to the changing traffic load. LYCAS achieves upto 68% of the optimal network throughput and upto 72% of optimal aggregate end-to-end throughput of multi-hop flows. It outperforms the existing schemes by a factor of 2.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Amiri, Nehzad Maryam. „Channel assignment protocols for multi-radio multi-channel wireless mesh netwworks“. Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/104156.

Der volle Inhalt der Quelle
Annotation:
The increasing demand for large and low cost wireless coverage, ranging from campus to city wide areas, has motivated a high interest in multi-hop communications with Wireless Mesh Networks (WMN) based on IEEE 802.11s as the most recent and significant standard. Channel Assignment (CA) is mechanism which selects the best channels for an individual wireless node or the entire network aiming to increase the capacity of the network. Channel assignment has been extensively researched for multi-radio WMNs, but it is still very challenging when it comes to its implementation. Although IEEE 802.11s introduces new inter-working, routing and wireless frame forwarding at the link layer, the multi channel architecture receives less attention due to many unsolved challenges that arises while mesh service set works over multiple frequencies. This research work tries to give a solution to the needs of designing an efficient channel assignment mechanism. As a result we have proposed a new static channel assignment based on the fact that not all wireless links are practically useful. Our mechanism prunes the network topology by removing weak wireless links and improves the network performance by reaching a more diverse channel-radio assignation solution. Toward designing a distributed channel assignment we propose a new game theory based formulation of channel assignment which is applicable to a realistic scenario with imperfect information at each router. We have proposed a distributed and hybrid channel assignment protocol based on the game formulation. The proposed channel assignment makes wireless router to be able to follow the unpredictable changes in the wireless environment. We also investigated the types of channel assignment protocols which can be adapted to the IEEE 802.11s based mesh network and improve the network good-put in terms of data delivery ratio and end-to-end delay.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Xing, Zitong. „A dynamic radio channel allocation scheme for WLANs“. Diss., Online access via UMI:, 2005.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Sng, Sin Hie. „Radio channel modeling for mobile ad hoc wireless networks“. Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Jun%5FSng.pdf.

Der volle Inhalt der Quelle
Annotation:
Thesis (M.S. in Engineering Science (Electrical Engineering))--Naval Postgraduate School, June 2004.
Thesis advisor(s): Murali Tummala, Roberto Cristi. Includes bibliographical references (p. 71). Also available online.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Al-Wajeeh, Taha. „Efficient radio channel modeling for urban wireless sensors networks“. Thesis, Poitiers, 2018. http://www.theses.fr/2018POIT2314.

Der volle Inhalt der Quelle
Annotation:
Le canal de propagation est un élément important pour la fiabilité des simulations et la conception des systèmes sans fil. Les modèles déterministes offrent un bon niveau de précision au prix d'une complexité croissante de calcul, ce qui les rend prohibitifs pour les simulateurs de réseaux de capteurs sans fil (RdC) car ils impliquent de nombreux nœuds distribués à l'échelle d’une ville. Dans ce contexte, l'objectif de cette thèse est de proposer des méthodes déterministes rapides et précises pour modéliser le comportement des ondes électromagnétiques en garantissant le juste compromis entre la précision et le temps de calcul. L’étude a d’abord été subdivisée en deux modes selon le mécanisme dominant de propagation. Dans une configuration microcellule, l'approche proposée est basée sur un modèle de lancer de rayons reposant sur la technique de la visibilité qui adopte un ensemble de techniques d'accélération pour réduire la complexité sans perte significative de la précision. Dans le même objectif, la propagation verticale a été abordée en incluant les contributions les plus significatives. Enfin, ces modèles ont été intégrés dans un simulateur de RdC pour fournir des résultats réalistes dans le contexte d'une ‘smart city’. L'impact des modèles précis dans les simulateurs est illustré par certains paramètres du réseau
Modeling the radio channel in an accurate way is a key element of any wireless systems. Deterministic models offer a good degree of precision at the cost of high computational complexity, which is prohibitive for wireless sensor network (WSN) simulators because they involve many sensor nodes in a city-wide scale. Within this context, the objective of this thesis is to propose efficient, fast, and accurate deterministic methods for modeling electromagnetic waves by finding the best time-accuracy trade-offs that guarantee accuracy under tight time constraints. The study was first subdivided into two modes according to the dominant propagation mechanism. In microcell configurations, the proposed approach is a ray-tracing model based on the visibility technique. It adopts a set of acceleration techniques to reduce the complexity with a minimal loss of precision. With the same objective, the vertical propagation was addressed to include the most significant contributions. Finally, these models were integrated into a WSN simulator to provide realistic and accurate results for smart city applications. The importance of using accurate models in WSN simulators is illustrated in terms of some network parameters
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Randle, Andrew Martin. „Dynamic radio channel effects from L-band foliage scatter“. Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341630.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Andreu, Estellés Carlos. „UWB radio channel and diversity characterization for wireless implanted devices“. Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/111836.

Der volle Inhalt der Quelle
Annotation:
Las redes de área corporal permiten la interconexión de nodos independientes situados dentro o fuera de la superficie corporal o, incluso, alejados de dicha superficie. En cuanto a las comunicaciones intracorporales, el establecimiento de un enlace robusto con una cápsula endoscópica o con un marcapasos, son ejemplos de los avances tecnológicos conseguidos en las últimas décadas. A pesar de estos desarrollos en asistencia sanitaria, los estándares actuales para este tipo de comunicaciones no permiten conexiones inalámbricas de alta velocidad de transmisión, las cuales son comunes en los servicios actuales de telecomunicaciones. Los sistemas UWB han surgido como potencial candidato para las futuras redes de comunicaciones inalámbricas intracorporales. No obstante, el principal obstáculo de la tecnología UWB para aplicaciones intracorporales es la alta atenuación que sufren las señales transmitidas al atravesar los distintos tejidos corporales, que aumenta drásticamente con el aumento de la frecuencia. Por tanto, es importante una caracterización precisa del canal UWB intracorporal a la hora de validar dicha banda como la adecuada para este propósito.Esta tesis se centra en el análisis de la tecnología UWB para posibilitar comunicaciones intracorporales inalámbricas desde un punto de vista experimental. Para conseguir este objetivo, se ha empleado un novedoso sistema de medidas experimental basado en fantomas en diversos escenarios de propagación intracorporal. De esta forma, se pueden comprobar las pérdidas de propagación en el medio así como la diversidad del canal de una forma fiable. Con el fin de validar los valores obtenidos en el laboratorio, se han comparado y analizado con los obtenidos en un experimento in vivo. Por otro lado, se han diseñado y fabricado nuevas antenas UWB candidatas para comunicaciones intracorporales, empleando técnicas existentes y nuevas de miniaturización y optimización. Finalmente, se han usado técnicas basadas en diversidad para mejorar el rendimiento del canal de propagación en dos escenarios intracorporales diferentes.
Wireless Body Area Networks allow the interconnection between independent nodes located either inside or over the body skin or further. Regarding in-body communications, establishing a proper link with a capsule endoscope or with a pacemaker are examples of technological advances achieved in the last decades. In spite of these healthcare developments, current standards for these kind of communications do not allow high data rate wireless connections, which are common in the current telecommunication services. UWB systems have emerged as a potential solution for future wireless in-body communications. Nevertheless, the main drawback of UWB for in-body applications is the high attenuation of human body tissues which increases dramatically with the increment of frequency. Hence, an accurate UWB in-body channel characterization is relevant in order validate UWB frequency band as the best candidate for future networks of implantable nodes. This thesis is devoted to test UWB technology for in-body communications from an experimental point of view. To achieve this goal, a novel spatial phantom-based measurement setup is used in several in-body propagation scenarios. Thus, the losses in the propagation medium and the channel diversity are checked in a reliable way. In order to check the values obtained in laboratory, they are compared and discussed with those obtained in an in vivo experiment. On the other hand, new UWB antenna candidates for inbody communications are designed and manufactured by using typical and new miniaturization and antenna optimization techniques for this purpose. Finally, diversity-based techniques are used to improve the performance of the propagation channel in two different in-body scenarios.
Les xarxes d'àrea corporal permeten la interconnexió de nodes independents situats, o bé dins, o bé sobre la pell, o inclús allunyats del propi cos. Pel que fa a les comunicacions intracorporals, l'establiment d'un bon enllaç amb una càpsula endoscòpica o amb un marcapassos, són exemples dels avanços tecnològics aconseguits les darreres dècades. A pesar d'aquests desenvolupaments en assistència sanitària, els estàndards actuals per a aquests tipus de comunicacions no permeten connexions sense fil d'alta velocitat de transmissió, que són habituals als serveis actuals de telecomunicacions. Els sistemes UWB han sorgit com una solució potencial per a les futures comunicacions sense fill intracorporals. No obstant, el principal obstacle de la tecnologia UWB per a les aplicacions intracorporals és l'alta atenuació dels teixits del cos humà, que augmenta dràsticament amb l'increment de freqüència. Per tant, és important una caracterització acurada del canal UWB intracorporal a l'hora de validar la banda de freqüència UWB com a la millor candidata per a les futures xarxes de nodes implantats.Aquesta tesi se centra en l'anàlisi de la tecnologia UWB per a comunicacions intracorporals des d'un punt de vista experimental. Per a aconseguir aquest objectiu s'ha emprat un sistema novedós de mesures experimentals, basat en fantomes, en diversos escenaris de propagació intracorporal. D'aquesta manera es poden comprovar les pèrdues de propagació en el medi i la diversitat del canal d'una forma fiable. Per tal d'avaluar els valors obtinguts al laboratori, s'han comparat i analitzat amb aquells obtinguts en un experiment in vivo. Per altra banda, s'han dissenyat i fabricat noves antenes UWB candidates per a comunicacions intracorporals emprant tècniques típiques i noves de miniaturització i optimització d'antenes per a aquest propòsit. Finalment s'han usat tècniques basades en diversitat per a millorar el rendiment del canal de propagació en dos escenaris intracorporals diferents.
Andreu Estellés, C. (2018). UWB radio channel and diversity characterization for wireless implanted devices [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/111836
TESIS
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Yoon, Suk-Un. „Dynamic Radio Resource Allocation in Wireless Sensor and Cognitive Radio Networks“. The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1259768264.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Song, Liying Tugnait Jitendra K. „Channel estimation and equalization for doubly-selective channels using basis expansion models“. Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Electrical_and_Computer_Engineering/Dissertation/Song_Liying_29.pdf.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Mehr Quellen

Bücher zum Thema "Wireless Radio Channel"

1

Brown, Tim. Practical guide to the MIMO radio channel with MATLAB examples. Chichester, West Sussex, U.K: Wiley, 2012.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

P, Mariño-Espiñeira, Hrsg. Modeling the wireless propagation channel: A simulation approach with Matlab. Chichester, West Sussex, England: Wiley, 2008.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Matthias, Pätzold. Mobile radio channels. 2. Aufl. Chichester, West Sussex, U.K: Wiley, 2012.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Radio Channel Modeling for Mobile Ad Hoc Wireless Networks. Storming Media, 2004.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Robert, Leese, und Hurley Stephen, Hrsg. Methods and algorithms for radio channel assignment. Oxford: Oxford University Press, 2002.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Salous, Sana. Radio Propagation Measurement and Channel Modelling. Wiley & Sons, Incorporated, John, 2013.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Salous, Sana. Radio Propagation Measurement and Channel Modelling. Wiley & Sons, Incorporated, John, 2013.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Radio Propagation Measurement And Channel Modelling. John Wiley & Sons, 2013.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

(Editor), Robert Leese, und Stephen Hurley (Editor), Hrsg. Methods and Algorithms for Radio Channel Assignment (Oxford Lecture Series in Mathematics and Its Applications, 23). Oxford University Press, USA, 2002.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Marconi and Tesla: Pioneers of Radio Communication (Inventors Who Changed the World). Myreportlinks.com, 2008.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen

Buchteile zum Thema "Wireless Radio Channel"

1

Chen, Yingying, Wenyuan Xu, Wade Trappe und Yanyong Zhang. „Channel Surfing: Defending Wireless Networks against Radio Interference“. In Securing Emerging Wireless Systems, 1–32. Boston, MA: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-88491-2_12.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Liu, Xin, Guoan Bi, Rui Lin und Yong Liang Guan. „Optimal Joint Sensing Threshold and Sub-channel Power Allocation in Multi-channel Cognitive Radio“. In Wired/Wireless Internet Communication, 251–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38401-1_20.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Jing, Tao, Hongbin Shi, Yan Huo, Liran Ma und Zhipeng Cai. „A Novel Channel Assignment Scheme for Multi-radio Multi-channel Wireless Mesh Networks“. In Wireless Algorithms, Systems, and Applications, 261–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23490-3_24.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Zhong, Zhang-Dui, Bo Ai, Gang Zhu, Hao Wu, Lei Xiong, Fang-Gang Wang, Lei Lei, Jian-Wen Ding, Ke Guan und Rui-Si He. „Radio Propagation and Wireless Channel for Railway Communications“. In Advances in High-speed Rail Technology, 57–123. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54860-8_3.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

da Costa, Gustavo Wagner Oliveira, Andrea Fabio Cattoni, Preben E. Mogensen und Luiz A. da Silva. „Dynamic Channel Selection for Cognitive Femtocells“. In Cognitive Radio and Networking for Heterogeneous Wireless Networks, 151–80. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-01718-1_5.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Shi, Weijie, Qiang-Sheng Hua, Dongxiao Yu, Yuexuan Wang und Francis C. M. Lau. „Efficient Information Exchange in Single-Hop Multi-Channel Radio Networks“. In Wireless Algorithms, Systems, and Applications, 438–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31869-6_38.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Horikawa, Izumi, Masahiko Hirono und Kazushige Tanaka. „Radio Channel Control for A Multi-Carrier TDMA Microcell System“. In Third Generation Wireless Information Networks, 155–62. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-4012-0_10.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Arakawa, Kensuke, Yasushi Ichikawa und Yuko Murayama. „A Novel Internet Radio Service for Personal Communications; The Private Channel Service“. In Mobile and Wireless Communications, 79–86. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-0-387-35618-1_10.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Zander, Jens. „Transmitter Power Control for Co-channel Interference Management in Cellular Radio Systems“. In Wireless and Mobile Communications, 161–75. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2716-9_11.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Yekeh Yazdandoost, Kamya. „A Radio Channel Model for In-body Wireless Communications“. In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 88–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29734-2_13.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen

Konferenzberichte zum Thema "Wireless Radio Channel"

1

Jiao, Lei, Vicent Pla und Frank Y. Li. „Analysis on channel bonding/aggregation for multi-channel cognitive radio networks“. In 2010 European Wireless Conference (EW). IEEE, 2010. http://dx.doi.org/10.1109/ew.2010.5483492.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Omar, Abbas, und Ali Ramadan Ali. „Adaptive channel characterization for wireless communication“. In 2008 IEEE Radio and Wireless Symposium. IEEE, 2008. http://dx.doi.org/10.1109/rws.2008.4463549.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Ali, A. R., A. A. Ali und A. S. Omar. „A multistage channel estimation and ICI reduction method for OFDM systems in doubly dispersive channels“. In 2006 IEEE Radio and Wireless Symposium. IEEE, 2006. http://dx.doi.org/10.1109/rws.2006.1615085.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Law, K. L. Eddie, und Wing-Chung Hung. „Channel control for multi-radio multi-channel wireless mesh networks“. In the 3nd ACM workshop. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1454630.1454654.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Ma, Liangping, und Chien-Chung Shen. „Optimal channel assignment for multi-channel multi-radio wireless networks“. In MILCOM 2008 - 2008 IEEE Military Communications Conference (MILCOM). IEEE, 2008. http://dx.doi.org/10.1109/milcom.2008.4753576.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Matolak, David W., Susheel Bokdia Rajendar und Qian Zhang. „Modeling wireless channel delay spread trends“. In 2009 IEEE Radio and Wireless Symposium (RWS). IEEE, 2009. http://dx.doi.org/10.1109/rws.2009.4957341.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Haq, Aftabul, Anjum Naveed und Salil S. Kanhere. „Securing Channel Assignment in Multi-Radio Multi-Channel Wireless Mesh Networks“. In 2007 IEEE Wireless Communications and Networking Conference. IEEE, 2007. http://dx.doi.org/10.1109/wcnc.2007.575.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Burstrom, Per, Sorour Falahati und Arne Simonsson. „Uplink Control Channel in E-UTRA, Radio Link and Radio Network Evaluation“. In 2008 IEEE Wireless Communications and Networking Conference. IEEE, 2008. http://dx.doi.org/10.1109/wcnc.2008.153.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Chang-Shen Lee, Wei-Ho Chung und Ta-Sung Lee. „Distributed channel access schemes for multi-channel ALOHA cognitive radio networks“. In 2015 IEEE Wireless Communications and Networking Conference (WCNC). IEEE, 2015. http://dx.doi.org/10.1109/wcnc.2015.7127627.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Jun Xu, Chengcheng Guo und Jianfeng Yang. „Interference-aware greedy channel assignment in multi-radio multi-channel WMN“. In 2016 25th Wireless and Optical Communication Conference (WOCC). IEEE, 2016. http://dx.doi.org/10.1109/wocc.2016.7506596.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen

Berichte der Organisationen zum Thema "Wireless Radio Channel"

1

Bhandari, Vartika, und Nitin H. Vaidya. Channel and Interface Management in a Heterogeneous Multi-Channel Multi-Radio Wireless Network. Fort Belvoir, VA: Defense Technical Information Center, März 2009. http://dx.doi.org/10.21236/ada555113.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Wu, Fan, Vijay Raman und Nitin Vaidya. A Channel Assignment Algorithm for Opportunistic Routing in Multichannel, Multi-Radio Wireless Mesh Networks. Fort Belvoir, VA: Defense Technical Information Center, November 2010. http://dx.doi.org/10.21236/ada555031.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Die Auswahlen zum Thema "Wireless Radio Channel" für konkrete Quellenarten können Sie auch interessieren:
Zeitschriftenartikel Dissertationen
Wir bieten Rabatte auf alle Premium-Pläne für Autoren, deren Werke in thematische Literatursammlungen aufgenommen wurden. Kontaktieren Sie uns, um einen einzigartigen Promo-Code zu erhalten!

Zur Bibliographie