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Relevant bibliographies by topics / Cross-Layer Design PHY

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Academic literature on the topic 'Cross-Layer Design PHY'

Author: Grafiati

Published: 4 May 2024

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Journal articles on the topic "Cross-Layer Design PHY"

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Kim, Dongmyoung, Youngkyu Choi, Sunggeun Jin, Kwanghun Han, and Sunghyun Choi. "A MAC/PHY cross-layer design for efficient ARQ protocols." IEEE Communications Letters 12, no. 12 (December 2008): 909–11. http://dx.doi.org/10.1109/lcomm.2008.081259.

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Saeed, Rashid A., Sabira Khatun, Borhanuddin Mohd Ali, and Khazani Abdullah. "A joint PHY/MAC cross-layer design for UWB under power control." Computers & Electrical Engineering 36, no. 3 (May 2010): 455–68. http://dx.doi.org/10.1016/j.compeleceng.2009.11.003.

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Beluch, Thomas, Daniela Dragomirescu, and Robert Plana. "A sub-nanosecond Synchronized MAC – PHY cross-layer design for Wireless Sensor Networks." Ad Hoc Networks 11, no. 3 (May 2013): 833–45. http://dx.doi.org/10.1016/j.adhoc.2012.09.010.

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4

Casari, P., M. Levorato, and M. Zorzi. "MAC/PHY Cross-Layer Design of MIMO Ad Hoc Networks with Layered Multiuser Detection." IEEE Transactions on Wireless Communications 7, no. 11 (November 2008): 4596–607. http://dx.doi.org/10.1109/t-wc.2008.070600.

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M. Faisal, Ghadah, Hasanain Abdalridha Abed Alshadoodee, Haider Hadi Abbas, Hassan Muwafaq Gheni, and Israa Al-Barazanchi. "Integrating security and privacy in mmWave communications." Bulletin of Electrical Engineering and Informatics 11, no. 5 (October 1, 2022): 2856–65. http://dx.doi.org/10.11591/eei.v11i5.4314.

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The aim of this paper is to integrate security and privacy in mmWave communications. MmWave communication mechanism access three major key components of secure communication (SC) operations. proposed design for mmWave communication facilitates the detection of the primary signal in physical (PHY) layer to find the spectrum throughput for primary user (PU) and secondary user (SU). The throughput of SC for PU with maximum throughput being recorded at 0.7934 while maximum throughput for SU is recorded at 0.7679. So, we will design a mmWave communication mechanism for solving this problem. The probability for sensing where the probability of detection (PD) is predicted at a defined range of 690 km with an estimated accuracy of 83.56% while the probability of false alarm (PFA) is predicted at a defined range of 230 km with an estimated accuracy of 81.39%. This conflicting but interrelated issue is investigated over three stages for the purpose of solving with a cross-layer model with MAC and PHY layers for a secure communication network (SCN) while reducing the collision effect concurrently with a 92.76% for both cross-layers. MATLAB 2019b would be forwarded in use as the increasing demand for augmenting the bandwidth in secure communications has actuated the evolutionary technology.

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Kryszkiewicz, Pawel, Pawel Sroka, Marcin Hoffmann, and Marcin Wachowiak. "Why Is White Noise Not Enough? Using Radio Front-End Models While Designing 6G PHY." Journal of Telecommunications and Information Technology, no. 2 (June 29, 2023): 41–45. http://dx.doi.org/10.26636/jtit.2023.170523.

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Each subsequent generation of wireless standards imposes stricter spectral and energy eﬃciency demands. So far, layered wireless transceiver architectures have been used, allowing for instance to separate channel decoding algorithms from the front-end design. Such an approach may need to be reconsidered in the upcoming 6G era. Especially hardware-originated distortions have to be taken into account while designing other layer algorithms, as high throughput and energy eﬃciency requirements will push these devices to their limits, revealing their non-linear characteristics. In such a context, this paper will shed some light on the new degrees of freedom enjoyed while cross-layer designing as well as controlling multicarrier and multiantenna transceivers in 6G systems.

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Ullah, Fasee, Abdul Hanan Abdullah, Muhammad Qasim Jan, and Kashif Naseer Qureshi. "Patient Data Prioritization in the Cross-Layer Designs of Wireless Body Area Network." Journal of Computer Networks and Communications 2015 (2015): 1–21. http://dx.doi.org/10.1155/2015/516838.

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In Wireless Body Area Network (WBAN), various biomedical sensors (BMSs) are deployed to monitor various vital signs of a patient for detecting the abnormality of the vital signs. These BMSs inform the medical staff in advance before the patient’s life goes into a threatening situation. In WBAN, routing layer has the same challenges as generally seen in WSN, but the unique requirements of WBANs need to be addressed by the novel routing mechanisms quite differently from the routing mechanism in Wireless Sensor Networks (WSNs). The slots allocation to emergency and nonemergency patient’s data is one of the challenging issues in IEEE 802.15.4 and IEEE 802.15.6 MAC Superframe structures. In the similar way, IEEE 802.15.4 and IEEE 802.15.6 PHY layers have also unique constraints to modulate the various vital signs of patient data into continuous and discrete forms. Numerous research contributions have been made for addressing these issues of the aforementioned three layers in WBAN. Therefore, this paper presents a cross-layer design structure of WBAN with various issues and challenges. Moreover, it also presents a detail review of the existing cross-layer protocols in the WBAN domain by discussing their strengths and weaknesses.

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Kim, Dong Min, and Seong-Lyun Kim. "CSNOMA: Carrier Sense Non-Orthogonal Multiple Access." Sensors 20, no. 18 (September 4, 2020): 5024. http://dx.doi.org/10.3390/s20185024.

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In this paper, we investigate the possibility of the cross-layer design of a distributed random access scheme with considering physical (PHY) and multiple access control (MAC) layers, which utilizes the interference cancellation technique. In this regard, we propose a new multiple access protocol, named carrier sense non-orthogonal multiple access (CSNOMA). We consider the spatially randomly distributed interferers to realistically capture the effect of interference. The proposed protocol shows better area spectral efficiency than carrier sense multiple access (CSMA), as the node density increases. We also present a practical signaling design compatible with IEEE 802.11 DCF mode.

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Triwinarko, Andy, Iyad Dayoub, Marie Zwingelstein-Colin, Mohamed Gharbi, and Basma Bouraoui. "A PHY/MAC cross-layer design with transmit antenna selection and power adaptation for receiver blocking problem in dense VANETs." Vehicular Communications 24 (August 2020): 100233. http://dx.doi.org/10.1016/j.vehcom.2020.100233.

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Su, Szu-Lin, Tsung-Hsiu Chih, Yuan-Chun Tsai, Hsieh-Cheng Liao, and Yu-Chia Wang. "A Power Control Scheme to Exploit Capture Effect with Fairness Consideration in WLAN." Wireless Personal Communications 118, no. 4 (February 10, 2021): 3485–500. http://dx.doi.org/10.1007/s11277-021-08190-z.

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AbstractIn this paper, we develop a physical/medium-access-control cross layer design to improve system throughput with the consideration of fairness for IEEE 802.11 WLAN. From PHY layer perspective, when an access collision occurs, the access point can still decode the corresponding data successfully if the received signal to interference plus noise ratio is larger than the threshold. This phenomenon is referred to as the capture effect. To improve system throughput, this work proposes a Differential Reception-Power Power Control scheme to take advantage of the capture effect. However, the proposed power control scheme cannot provide a fair transmission environment even though it improves the system throughput. To resolve this problem, this work proposes two methods: the adjustment of contention window size and the modification of probability mass function for the selection of the backoff value. The simulation results demonstrate that the proposed schemes can not only remarkably improve system throughput, but also provide a fair transmission environment.

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Dissertations / Theses on the topic "Cross-Layer Design PHY"

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SaÌmano-Robles, Ramiro. "MAC/PHY cross-layer design for wireless networks." Thesis, University of Leeds, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445844.

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Korger, Ulrike [Verfasser]. "Joint PHY-MAC Cross-Layer Design in Wireless Ad Hoc Networks / Ulrike Korger." München : Verlag Dr. Hut, 2012. http://d-nb.info/1020299509/34.

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Martorell, Lliteras Gabriel. "Mac-Phy Cross-Layer analysis and design of Mimo-Ofdm Wlans based on fast link adaptation." Doctoral thesis, Universitat de les Illes Balears, 2013. http://hdl.handle.net/10803/123435.

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The latestWLAN standard, known as IEEE 802.11n, has notably increased the network capacity with respect to its predecessors thanks to the incorporation of the multipleinput multiple-output (MIMO) technology. Nonetheless, the new amendment, as its previous ones, does not specify how crucial configuration mechanisms, most notably the adaptive modulation and coding (AMC) algorithm should be implemented. The AMC process has proved essential to fully exploit the system resources in light of varying channel conditions. In this dissertation, a closed-loop AMC technique, referred to as fast link adaption (FLA) algorithm, that effectively selects themodulation and coding scheme (MCS) for multicarriermultiantennaWLAN networks is proposed. The FLA algorithm determines the MCS that maximizes the throughput while satisfying a quality of service (QoS) constraint, usually defined in the form of an objective packet error rate (PER). To this end, FLA uses a packet/bit error rate prediction methodology based on the exponential effective SNRmetric (EESM). The FLA algorithm performance has been evaluated under IEEE 802.11n systems that thanks to the incorporation of a feedbackmechanismare able to implement closed- loop AMC mechanisms. Initially, this AMC technique relies only on physical layer information but it is subsequently extended to also take into account themediumaccess control (MAC) sublayer performance. At the physical layer, the FLA algorithm has demonstrated its effectivity by performing very close to optimality in terms of throughput, while satisfying a prescribed PER constraint. The FLA algorithm has also been evaluated using imperfect channel information. It has been observed that the proposed FLA technique is rather robust against imperfect channel information, and only in highly-frequency selective channels, imperfect channel knowledge causes a noticeable degradation in throughput. At the MAC sublayer, the FLA algorithm has been complemented with a timeout strategy that weighs down the influence of the available channel information as this becomes outdated. This channel information outdate is caused by the MAC sublayer whose user multiplexing policy potentially results in large delays between acquiring the instant in which the channel state information is acquired and that in which the channel is accessed. Results demonstrate the superiority of FLA when compared to open-loop algorithms under saturated and non-saturated conditions and irrespective of the packet length, number of users, protocol (CSMA/CA or CDMA/E2CA) and access scheme (Basic Access or RTS/CTS). Additionally, several analytical models have been developed to estimate the system performance at the MAC sublayer. These models account for all operational details of the IEEE 802.11n MAC sublayer, such as finite number of retries, anomalous slot or channel errors. In particular, a semi-analytical model that assesses the MAC layer throughput under saturated conditions, considering the AMC performance is first introduced. Then, an analytical model that allows the evaluation of the QoS performance under non-saturated conditions is presented. This model focuses on single MCS and it is able to accurately predict very important system performance metrics such as blocking probability, delay, probability of discard or goodput thanks to the consideration of the finite queues on each station. Finally, the previous non-saturated analytical approach is used to define a semi-analytical model in order to estimate the system performance when considering AMC algorithms (i.e. whenmultiple MCSs are available).
La darrera versió de l’estàndard deWLAN, anomenada IEEE 802.11n, ha augmentat la seva capacitat notablement en relació als sistemes anteriors gràcies a la incorporació de la tecnologia de múltiples antenes en transmissió i recepció (MIMO). No obstant això, la nova proposta, al igual que les anteriors, segueix sense especificar com s’han d’implementar elsmecanismes de configuraciómés crucials, un dels quals és l’algoritme de codificació imodulació adaptativa (AMC). Aquests algoritmes ja han demostrat la seva importància a l’hora demaximitzar el rendiment del sistema tenint en compte les condicions canviants del canal. En aquesta tesis s’ha proposat un algoritme AMC de llaç tancat, anomenat adaptació ràpida de l’enllaç (FLA), que selecciona eficientment l’esquema demodulació i codificació adaptativa per xarxes WLAN basades en arquitectures multiportadora multiantena. L’algoritme FLA determina el mode de transmissió capaç de maximitzar el throughput per les condicions de canal actuals, mentre satisfà un requisit de qualitat de servei en forma de taxa d’error per paquet (PER). FLA utilitza una metodologia de predicció de PER basada en l’estimació de la relació senyal renou (SNR) efectiva exponencial (EESM). El rendiment de l’algoritme FLA ha estat avaluat en sistemes IEEE 802.11n, ja que aquests, gràcies a la incorporació d’unmecanisme de realimentació demodes de transmissió, poden adoptar solucions AMC de llaç tancat. En una primera part, l’estudi s’ha centrat a la capa física i després s’ha estès a la subcapa MAC. A la capa física s’ha demostrat l’efectivitat de l’algoritme FLA aconseguint un rendiment molt proper al que ens proporcionaria un esquema AMC òptim en termes de throughput, alhora que es satisfan els requisits de PER objectiu. L’algoritme FLA també ha estat avaluat utilitzant informació imperfecte del canal. S’ha vist que l’algoritme FLA proposat és robust en front dels efectes d’estimació imperfecte del canal, i només en canals altament selectius en freqüència, la informació imperfecte del canal provoca una davallada en el rendiment en termes de throughput. A la subcapa MAC, l’algoritme FLA ha estat complementat amb una estratègia de temps d’espera que disminueix la dependència amb la informació de canal disponible a mesura que aquesta va quedant desfassada respecte de l’estat actual. Aquesta informació de canal desfassada és conseqüència de la subcapa MAC que degut a la multiplexació d’usuaris introdueix grans retards entre que es determina el mode de transmissió més adequat i la seva utilització per a l’accés al canal. Els resultats obtinguts han demostrat la superioritat de FLA respecte d’altres algoritmes de llaç obert en condicions de saturació i de no saturació, i independentment de la longitud de paquet, nombre d’usuaris, protocol (CSMA/CA i CSMA/E2CA) i esquema d’accés (Basic Access i RTS/CTS). Amés, s’han desenvolupat diversosmodels analítics per tal d’estimar el rendiment del sistema a la subcapa MAC. Aquests models consideren tots els detalls de funcionament de la subcapaMAC del 802.11n, comper exemple un nombre finit de retransmissions de cada paquet, l’slot anòmal o els errors introduïts pel canal. Inicialment s’ha proposat unmodel semi-analític que determina el throughtput en condicions de saturació, considerant el rendiment dels algoritmes AMC. Després s’ha presentat un model analític que estima el rendiment del sistema per condicions de no saturació, mitjançat elmodelat de cues finites a cada estació. Aquestmodel consideramodes de transmissió fixes i és capaç de determinar de manera molt precisa mètriques de rendimentmolt importants comsón la probabilitat de bloqueig de cada estació, el retard mitjà del paquets, la probabilitat de descart o la mesura del goodput. Finalment, el model analític de no saturació s’ha utilitzat per definir un model semi-analític per tal d’estimar el rendiment del sistema quan es considera l’ús d’algoritmes AMC.

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Korger, Ulrike [Verfasser], Jörg [Akademischer Betreuer] Eberspächer, and Gerhard [Akademischer Betreuer] Bauch. "Joint PHY-MAC Cross-Layer Design in Wireless Ad Hoc Networks / Ulrike Korger. Gutachter: Gerhard Bauch. Betreuer: Jörg Eberspächer." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/101958940X/34.

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5

Bouraoui, Basma. "Architectures cross-layer PHY/MAC pour réduire l'effet de blocage de réception dans les réseaux véhiculaires ad-hoc." Thesis, Valenciennes, 2017. http://www.theses.fr/2017VALE0006/document.

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Le protocole MAC du standard IEEE 802.11p dédié aux réseaux véhiculaires interdit les transmissions simultanées dans une même zone de détection afin d’éviter d’éventuelles interférences entre les véhicules voisins. Cette interdiction entraîne un blocage temporaire de réception de données, ce qui diminue le débit global du réseau. Pour résoudre ce problème, nous proposons dans cette thèse une architecture cross-layer PHY/MAC basée sur un algorithme de sélection d’antennes émettrices et un protocole MAC dédié afin de réduire le blocage. Ce cross-layer permet au récepteur de choisir la meilleure combinaison d’antennes émettrices pour améliorer le débit utile normalisé de chaque lien V2V. L’algorithme est présenté avec une méthode de détection multi-utilisateurs. Cette méthode annule les interférences entre voisins et permet à plusieurs véhicules d’émettre des données simultanément. Le protocole MAC associé assure la coordination entre les véhicules durant les communications. Les résultats de simulation montrent une amélioration du débit utile normalisé du réseau en comparaison au standard actuel. Néanmoins, ces bonnes performances diminuent avec l’augmentation de la densité véhiculaire. Pour pallier à cette baisse, nous proposons de joindre à la première solution une nouvelle architecture crosslayer PHY/MAC. Cette architecture est basée sur un algorithme d’adaptation de la puissance émise en fonction de la densité de voisinage du récepteur. Elle est également accompagnée par un protocole MAC dédié. Les résultats de simulation montrent que cette solution permet à plus de véhicules de communiquer simultanément et ainsi améliore significativement le débit utile normalisé notamment dans les réseaux véhiculaires denses
The MAC protocol IEEE 802.11p, dedicated to vehicular ad-hoc networks VANETs, prohibits simultaneous transmissions in the same detection area, in order to avoid interference between neighboring vehicles. This prohibition causes a temporary data reception blocking, which reduces the network throughput. To reduce this adverse impact, we propose in this thesis a cross-layer design PHY/MAC based on a transmit antennas selection algorithm jointly with a dedicated MAC protocol. This design allows receivers to select the best combination of transmit antennas to improve the throughput of each V2V link. The algorithm is presented with a multi-user detection method, which cancels neighbor’s interference and allows vehicles to transmit data simultaneously. The associated MAC protocol ensures the coordination between vehicles during the simultaneous transmission period. The simulation results show a significant network throughput improvement compared to the conventional case. However, this improvement is less important in dense VANETs. For this purpose, we propose to join a cross-layer design PHY/MAC based on a transmit power adaptation algorithm. This design allows transmitters to choice the adequate power level based on corresponding receivers density. The simulation results show that this solution allows more vehicles to communicate simultaneously and thus improves the network throughput, in particular in dense VANETs

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Allouis, Alain. "NOMA-MCM strategies in transmission and reception for advanced vehicular communications in 5G and beyond." Electronic Thesis or Diss., Valenciennes, Université Polytechnique Hauts-de-France, 2024. http://www.theses.fr/2024UPHF0003.

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Le domaine des transports intelligents repose sur une infrastructure robuste de communication véhiculaire, essentielle à la gestion du trafic, à la surveillance des routes, à l'accessibilité à l'Internet des objets (IoT) et aux informations des conducteurs/passagers. Alors que la norme conventionnelle IEEE802.11p a longtemps dominé ce domaine, l'avènement de la 5G et de ses successeurs marque un changement de paradigme.Cette thèse représente une exploration complète des technologies 5G et au-delà spécifiquement adaptées aux exigences uniques de la communication véhicule-à-tout (V2X). L'objectif principal est une analyse méticuleuse de la technologie Non-Orthogonal Multiple Access (NOMA) et des schémas de modulation multiporteuse (MCM) dans le contexte des applications V2X de nouvelle génération. Au cœur de cette exploration se trouve la recherche de stratégies de conception PHY/MAC (couches physique et de contrôle d'accès au support) transversales visant à élever les performances.Le parcours de recherche commence par une vue d'ensemble introductive, plongeant dans le contexte historique et la pertinence des communications V2X, accompagnée d'un examen des diverses exigences des groupes de cas d'utilisation V2X. Ce travail préliminaire combine des connaissances issues d'organisations normatives et des dernières publications, offrant une vue d'ensemble complète du paysage historique de la communication véhiculaire.Ensuite, la thèse navigue dans le paysage contemporain, mettant l'accent sur l'application des technologies 5G aux différents cas d'utilisation V2X. Elle cartographie la relation entre les groupes de cas d'utilisation V2X et les technologies habilitantes tout en explorant l'architecture hiérarchique 5G V2X. Cette exploration fait le lien entre les exigences actuelles de communication, les normes existantes et les directions de recherche ouvertes ainsi que les défis imminents.Le cœur de la thèse tourne autour de l'exploration des implications des schémas NOMA et MCM dans les applications V2X de prochaine génération. La culmination de cette recherche se manifeste dans un paradigme de conception transversale axé sur l'amélioration des performances et de l'adaptabilité des systèmes de communication cellulaires véhiculaires à tout (C-V2X). En disséquant les mécanismes NOMA au sein des couches physique et de contrôle d'accès au support (PHY/MAC), cette étude démontre des améliorations substantielles des performances de débit par rapport aux systèmes d'accès multiple orthogonal (OMA) conventionnels.Les résultats de cette thèse aspirent à contribuer à des solutions avancées pour les futurs systèmes de transport autonomes et connectés, avec un accent spécifique sur l'amélioration des performances des couches physique et d'accès au support dans des scénarios V2X sophistiqués
The realm of intelligent transportation hinges upon robust vehicular communication infrastructure, vital for traffic management, road monitoring, Internet of Things (IoT) accessibility, and driver/passenger information. While the conventional IEEE802.11p standard has long dominated this domain, the advent of 5G and its successors marks a paradigm shift.This thesis represents a comprehensive exploration of 5G and beyond technologies specifically tailored to the unique demands of Vehicle-to-Everything (V2X) communication. The primary aim is a meticulous analysis of Non-Orthogonal Multiple Access (NOMA) technology and Multi-Carrier Modulation (MCM) schemes within the context of next-generation V2X applications. Central to this exploration is the pursuit of cross-layer PHY/MAC (Physical Layer/Medium Access Control) design strategies aimed at elevating performance benchmarks.The research journey begins with an introductory overview, delving into the historical context and relevance of V2X communications, accompanied by an examination of the diverse requirements across V2X use case groups. This foundational groundwork combines insights from normative organizations and the latest literature, providing a comprehensive overview of the historical landscape of vehicular communication.Subsequently, the thesis navigates the contemporary landscape, emphasizing the application of 5G enabling technologies to various V2X use cases. It maps the relationship between V2X Use Case Groups and Enabling Technologies while exploring the Hierarchical 5G V2X high-level architecture. This exploration bridges current communication requirements and existing standards with open research directions and impending challenges.The core of the thesis revolves around the exploration of NOMA and MCM schemes' implications within next-generation V2X applications. The culmination of this research manifests in a cross-layer design paradigm focusing on the enhancement of performance and adaptability within cellular vehicle-to-everything (C-V2X) communication systems. By dissecting NOMA mechanisms within the Physical/Medium Access Control (PHY/MAC) layers, this study demonstrates substantial throughput performance improvements compared to conventional Orthogonal Multiple Access (OMA) systems.The outcomes of this thesis aspire to contribute advanced solutions for future autonomous and connected transport systems, with a specific emphasis on the enhancement of physical and medium access layer performance within sophisticated V2X scenarios

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HONG, JIAN-YUAN, and 洪健源. "Design of A PHY-MAC Cross-layer DRX Scheduling Scheme with Carrier Aggregation in LTE-A Heterogeneous networks." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/39223878043813616985.

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碩士
國立臺南大學
電機工程學系碩博士班
105
In the recent years, with high popularity of smart mobile devices, how to extend their battery life is always an important issue. With the rise of various Internet services and applications, the wireless network interface becomes the most power consumed part of mobile device. As a result, how to reduce the energy consumption of wireless access modules by designing an high efficient sleep scheduling and energy-saving resource allocation scheme is one of the most important research topics. In this paper, we design a cross-layer energy-saving sleep scheduling mechanism with carrier aggregation in Long-Term Evolution-Advanced (LTE-A)/LTE-A Pro uplink heterogeneous networks. The design considers the Medium Access Control (MAC) layer multi-user sleep scheduling (via the settings of DRX/DTX parameters) and the Physical layer power, carrier, and radio resource allocations at the same time. To the best of our knowledge, this is the first work to consider the cross-layer sleep scheduling and energy-saving resource allocation problem in LTE-A/LTE-A Pro carrier aggregation heterogeneous networks. In a heterogeneous network environment, to reduce the interference between the eNB and Smallcells, we assign different carrier to the eNB and the Smallcell as their primary carrier. In addition, the eNB configures and schedules the Almost Blank Subframes (ABS) when needed, thus the Smallcell can carrier aggregate more bands to provide more UEs to access the Internet in an energy-saving way. To more accurately model the energy consumption of the wireless module of the UE, we take the usage of the baseband and radio frequency modules and the allocation of transmit power into account. Last but not the least, the proposed method is compatible with the 3GPP LTE-A/ LTE-A Pro standard. The simulation results show better energy saving compared to other schemes.

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Yang, Shuang-Cheng, and 楊雙丞. "Design of A PHY-MAC Cross-layer DRX Scheduling Scheme Considering System Level Power Model in LTE-A networks." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/78huyw.

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碩士
國立臺南大學
電機工程學系碩博士班
104
In the recent years, with high popularity of smart mobile devices, how to extend their battery life is always an important issue. According to the experiment, for a 3G handheld device, the wireless interface consumes the largest proportion of the total power (up to 40%). In particular, the 4G and 5G wireless communications will provide higher data rate. As a result, the wireless interface in these devices will consume much more power than that in a 3G device. Specifically, emerging cloud computing and IoT applications also increase the operation time of wireless modems in a mobile device. In this case, how to maximize wireless interfaces’ energy efficiency and design effective energy-saving sleep scheduling mechanism become a critical issue. In this thesis, we design cross-layer energy-saving sleep scheduling mechanisms in LTE-A/B4G uplink by jointly considering system level energy consumption of wireless interfaces and QoS (Quality of Service) requirements of traffic flows. The design considers the Medium Access Control (MAC) Layer multi-user sleep scheduling (via the settings of DRX/DTX parameters) and the Physical Layer power and radio resource allocations at the same time. Furthermore, to maximize the energy efficiency, we also exploit the tolerable packet drop rate and delay bound of traffic flows. When the channel condition is bad for a mobile device, the packet data delivery can be postponed and wait for a better channel quality if its packet drop rate can be guaranteed. Last but not the least, the proposed method is compatible with the 3GPP LTE-A standard.

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9

WANG, MEI-HAN, and 王美涵. "Design of a PHY-MAC Cross-layer Dynamic Sleep Scheduling and Radio Resource Allocation Scheme in LTE-A/B4G networks." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/c2md8q.

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碩士
國立臺南大學
電機工程學系碩博士班
106
In the recent years, with the popularity of smart mobile devices, how to extend the battery life of the device has always been one of the most concerned research topics. According to experiments, the wireless communication interface of the 3G/4G mobile device accounts for the largest power consumption. Specifically, the longer time of various network services and applications occupy a mobile device, the more power consumption of the wireless communication interface induces. How to reduce the energy consumption of wireless access modules by designing a highly efficient sleep scheduling and energy-saving transmission method is one of the most important research issues. To alleviate this problem, we design a Dynamic Sleep Scheduling and Energy-Saving Resource Allocation (DS2ESRA) method in the LTE-A/B4G (Long Term Evolution-Advanced/Beyond 4G) uplink network, which jointly considers both the dynamic multi-user sleep scheduling of the Media Access Control (MAC) layer and the radio resource allocation of the physical (PHY) layer. The sleep scheduling are done via the settings of LTE-A DRX/DTX parameters, i.e., sleep period, on duration, offset, and inactivity timer, while the physical radio resource allocations involve the assignment of transmit power, radio resource, Modulation and Coding Scheme (MCS), and uplink data size in each subframe for each active UE. Considering the real situation of traffics, connection requests are joining and leaving the network over time. We have to design a dynamic sleep scheduling scheme which can schedule the sleep of new UEs without modifying the sleep parameters of other existing users. Thus, the control overhead, including computational time and message overhead, can be dramatically reduced. Furthermore, to maximize the energy efficiency of data streaming, we also exploit the tolerable packet drop rate and delay bound. When the channel condition is bad for a mobile device, the packet data delivery can be postponed and wait for a better channel quality if its packet drop rate can be guaranteed. Simulation results show that compared with other methods, DS2ESRA can achieve the best energy saving and minimal control overhead while guarantee the QoS of mobile devices.

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Xu, Feng [Verfasser]. "Resource efficient multi-antenna designs for mobile ad hoc networks : focus on PHy, Mac and cross layer / von Feng Xu." 2008. http://d-nb.info/98951840X/34.

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Book chapters on the topic "Cross-Layer Design PHY"

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Kartsakli, E., J. Alonso-Zárate, L. Alonso, and C. Verikoukis. "Cross-Layer Scheduling with QoS Support over a Near-Optimum Distributed Queueing Protocol for Wireless LANS." In Wireless Network Traffic and Quality of Service Support, 30–52. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-61520-771-8.ch002.

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Abstract:

Distributed Queueing Collision Avoidance (DQCA) is an efficient MAC protocol designed for infrastructure Wireless LANs. In this chapter, a thorough description of the protocol is given, along with a set of protocol rules and an example of its operation. In continuation, four algorithms are proposed that alter the FIFO scheduling order of DQCA in order to meet specific network requirements. The proposed schemes combine the efficiency of opportunistic scheduling with the QoS provisioning through service differentiation. The opportunistic policy encourages transmissions at higher rates when the channel condition is good and is implemented through a cross-layer dialogue between the PHY and the MAC layers. The key idea of service differentiation is to assign priorities to traffic flows with different requirements in order to provide QoS guarantees. The throughput, delay and jitter performance of the proposed schemes have been evaluated through simulations for a scenario with heterogeneous traffic of voice, video, best-effort and background data traffic flows.

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Conference papers on the topic "Cross-Layer Design PHY"

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Baker, Alaa M., Chee Kyun Ng, Nor Kamariah Noordin, and Sabira Khatun. "PHY and MAC, Cross-Layer optimization and Design." In 2nd Malaysia Conferenced on Photonics (MCP). IEEE, 2008. http://dx.doi.org/10.1109/nctt.2008.4814269.

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Matamoros, Javier, and Carles Anton-Haro. "Hierarchical Wireless Sensor Networks with contention-based multiple-access schemes - A PHY/MAC cross-layer design." In 2009 Second International Workshop on Cross Layer Design (IWCLD). IEEE, 2009. http://dx.doi.org/10.1109/iwcld.2009.5156518.

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Barghi, S., H. Jafarkhani, and H. Yousefi'zadeh. "How to Lower Congestion with Cross-Layer MPR-PHY/MAC Design?" In 2011 IEEE Global Communications Conference (GLOBECOM 2011). IEEE, 2011. http://dx.doi.org/10.1109/glocom.2011.6133713.

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Jhihoon Joo, Hee Chang Lee, and Dong Seog Han. "Approach for PHY/MAC cross-layer design in vehicular ad-hoc networks." In 2013 Fifth International Conference on Ubiquitous and Future Networks (ICUFN). IEEE, 2013. http://dx.doi.org/10.1109/icufn.2013.6614778.

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Wang, Xuguo, and Lee Li. "PHY-DLL dialogue: cross-layer design for optical-wireless OFDM downlink transmission." In Asia-Pacific Optical Communications, edited by Kwok-wai Cheung, Gee-Kung Chang, Guangcheng Li, and Ken-Ichi Sato. SPIE, 2005. http://dx.doi.org/10.1117/12.634099.

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Triwinarko, Andy, Soumaya Cherkaoui, and Iyad Dayoub. "Performance of PHY/MAC Cross-Layer Design for Next-Generation V2X Applications." In 2022 IEEE International Conference on Internet of Things and Intelligence Systems (IoTaIS). IEEE, 2022. http://dx.doi.org/10.1109/iotais56727.2022.9975999.

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Barghi, S., H. Jafarkhani, and H. Yousefi'zadeh. "MAC/PHY Cross-Layer Design and Analysis for Multiple Packet Detector MIMO." In ICC 2010 - 2010 IEEE International Conference on Communications. IEEE, 2010. http://dx.doi.org/10.1109/icc.2010.5502201.

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Hamamreh, Jehad M., Marwan Yusuf, Tuncer Baykas, and Huseyin Arslan. "Cross MAC/PHY layer security design using ARQ with MRC and adaptive modulation." In 2016 IEEE Wireless Communications and Networking Conference (WCNC). IEEE, 2016. http://dx.doi.org/10.1109/wcnc.2016.7564987.

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Wen, Jyh-Horng, Chien-Erh Weng, and Jee-Wey Wang. "Performance evaluation of MAC-PHY cross-layer design for power line communication networks." In 2009 Fourth International Conference on Communications and Networking in China (CHINACOM). IEEE, 2009. http://dx.doi.org/10.1109/chinacom.2009.5339763.

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Mitra, Abhijit. "A PHY-MAC cross layer design for low PER with adaptive modulation and coding." In 2010 International Workshop on Cognitive Radio (IWCR). IEEE, 2010. http://dx.doi.org/10.1109/iwcr.2010.5730217.

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