Bibliografie tematiche / Multichannel communication systems

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Letteratura scientifica selezionata sul tema "Multichannel communication systems"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 19 febbraio 2022

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Articoli di riviste sul tema "Multichannel communication systems"

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IRVING, A. D., e T. DEWSON. "VOLTERRA FUNCTIONAL SECURE COMMUNICATION SYSTEMS". International Journal of Bifurcation and Chaos 13, n. 01 (gennaio 2003): 123–46. http://dx.doi.org/10.1142/s0218127403006388.

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Two methods, based on nonlinear dynamics, are described for broad- and narrow-band communication systems. The first approach employs hyperchaotic discrete time series carrier sequences generated with mixed linear–nonlinear coupled differential equations [Irving & Dewson, 1997]. In this first approach it is assumed that the solution of the coupled ordinary differential equations can be represented as a multichannel Volterra functional expansion. Identification, synchronization and the potential unmasking of hyperchaotic communications systems, are achieved by generating a tractable hierarchy of ascending order time series moment equations by operating on a suitably truncated Volterra functional expansion. The estimated moment hierarchy facilitates the calculation of the coefficients of the coupled differential equations that generate the multichannel carrier that is to be modulated by the message. Due to its ability to easily and accurately estimate the coefficients of the governing differential equations the method is applied to the multichannel carrier sequences of data generated by a set of hyperchaotic equations. The inherent problem of resynchronization in chaotic communication systems cannot be avoided in general because of the evolutionary, time dependent, nature of the time series carriers used. This time dependence problem that results in repeated resynchronization can be avoided by considering an alternative and innovative approach that employs time series carrier sequences generated by an input–output multichannel Volterra kernel expansion [Dewson & Irving, 1996]. In this second method, mixed order multichannel Volterra kernel functions are used to generate the carrier sequence that is then modulated by the message. The Volterra kernel function values used to generate the carrier can be identified with the moment hierarchy method [Dewson & Irving, 1996] enabling the message to be deconvolved from the transmitted signal. The modulated nonlinear multichannel signal is transmitted to the receiver. The effect of transmission is to distort and corrupt the signal. In this work it is assumed that the distortions to the transmitted signal remain small, with the case where they become significant being treated elsewhere. First, the case where the signal is received free from both noise and distortion, for example the decryption of an encrypted e-mail, is first considered. Then signal reception in the presence of additive noise is considered. Each of the two proposed methods has been investigated to determine their accuracy and robustness in the presence of additive noise.
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Gharaibeh, K. M., e M. B. Steer. "Modeling distortion in multichannel communication systems". IEEE Transactions on Microwave Theory and Techniques 53, n. 5 (maggio 2005): 1682–92. http://dx.doi.org/10.1109/tmtt.2005.847064.

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Cheng, Y. H., e T. Okoshi. "Multichannel DPSK coherent optical communication systems". Electronics Letters 26, n. 17 (1990): 1378. http://dx.doi.org/10.1049/el:19900886.

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Li, Jun, e Yiqiang Q. Zhao. "Packet delay analysis for multichannel communication systems with MSW-ARQ". Performance Evaluation 66, n. 7 (luglio 2009): 380–94. http://dx.doi.org/10.1016/j.peva.2009.02.004.

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Maeda, M. W., e L. G. Kazovsky. "Novel relative frequency stabilization technique for multichannel optical communication systems". IEEE Photonics Technology Letters 1, n. 12 (dicembre 1989): 455–57. http://dx.doi.org/10.1109/68.46048.

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Gripper, Misty, Tomasz Letowski e Tim Mermagen. "Using multichannel communication systems to observe selective and divided attention". Journal of the Acoustical Society of America 122, n. 5 (2007): 3064. http://dx.doi.org/10.1121/1.2942934.

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Grammer, Karl. "Is there empirical evidence for the dynamic nature of communication systems?: The role of synchronization and inferential communication". Behavioral and Brain Sciences 25, n. 5 (ottobre 2002): 625–26. http://dx.doi.org/10.1017/s0140525x02270119.

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Abstract (sommario):
Communication is a multichannel, multiunit process that works on different levels. It is sequential with specific information carriers on a cognitive accessible level, and dynamic for the regulation of relationships at the same time. One function of communication is the broadcasting of internal states that can be assessed by inferential communication.
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Baudais, Jean-Yves, Fahad Syed Muhammad e Jean-François Hélard. "Robustness Maximization of Parallel Multichannel Systems". Journal of Electrical and Computer Engineering 2012 (2012): 1–16. http://dx.doi.org/10.1155/2012/840513.

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Bit error rate (BER) minimization and SNR-gap maximization, two robustness optimization problems, are solved, under average power and bitrate constraints, according to the waterfilling policy. Under peak power constraint the solutions differ and this paper gives bit-loading solutions of both robustness optimization problems over independent parallel channels. The study is based on analytical approach, using generalized Lagrangian relaxation tool, and on greedy-type algorithm approach. Tight BER expressions are used for square and rectangular quadrature amplitude modulations. Integer bit solution of analytical continuous bitrates is performed with a new generalized secant method. The asymptotic convergence of both robustness optimizations is proved for both analytical and algorithmic approaches. We also prove that, in the conventional margin maximization problem, the equivalence between SNR-gap maximization and power minimization does not hold with peak-power limitation. Based on a defined dissimilarity measure, bit-loading solutions are compared over Rayleigh fading channel for multicarrier systems. Simulation results confirm the asymptotic convergence of both resource allocation policies. In nonasymptotic regime the resource allocation policies can be interchanged depending on the robustness measure and on the operating point of the communication system. The low computational effort leads to a good trade-off between performance and complexity.
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Agrawal, G. P. "Evaluation of crosstalk penalty in multichannel ASK heterodyne optical communication systems". Electronics Letters 23, n. 17 (1987): 906. http://dx.doi.org/10.1049/el:19870640.

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Sheng, Zhengguo, Amir Kenarsari-Anhari, Nima Taherinejad e Victor C. M. Leung. "A Multichannel Medium Access Control Protocol for Vehicular Power Line Communication Systems". IEEE Transactions on Vehicular Technology 65, n. 2 (febbraio 2016): 542–54. http://dx.doi.org/10.1109/tvt.2015.2397859.

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Tesi sul tema "Multichannel communication systems"

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Chan, Serena 1977. "Multiple access protocols for multichannel communication systems". Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/38439.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
Includes bibliographical references (leaves 108-111).
System architecture design, evaluation, and optimization are key issues to developing communication systems that meet the requirements of today and expectations of the future. In this thesis, we introduce the concept of multiple access communication and the need to use efficient transmission techniques to expand both present and future wireless communication networks. We will study two areas regarding multiple access on multichannel communication systems. First, we describe fundamental multiplexing techniques that we can build upon and investigate the performance of different candidate architectures for the transmission of messages from bursty sources on multiple channels. We will consider traditional protocols such as Time Division Multiple Access (TDMA) and Slotted ALOHA (S-ALOHA) alongside a channelized architecture, which is based on the idea of multiplexing by dividing total transmission capacity into a fixed number of frequency channels. We develop mathematical models that describe the overall delay for sending large messages of a fixed length arriving from bursty sources and analyze their performances. We will make real-world parameter assumptions in the context of wireless networks and analyze the performance to develop intuition about the effectiveness of the different architectures. Second, we will investigate channel capacity allocation among mixed traffic, i.e., multiple classes of users. We will consider a first-come first-serve (FCFS) access strategy, a non-preemptive priority scheme, a preemptive resume priority scheme, and several channel capacity allocation schemes. We develop models that describe the overall delay for sending messages and analyze their performance. Our focus will concentrate on two classes of users. This scenario is typical of classes of users with small and large messages to transmit. present quantitative results by making real-world parameter assumptions in the context of wireless networks and analyze the performance to develop intuition about the effectiveness of each architecture.
by Serena Chan.
M.Eng.
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Bala, Erdem. "Multichannel, multiuser and multiple antenna wireless communication systems". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 184 p, 2007. http://proquest.umi.com/pqdlink?did=1251904851&Fmt=7&clientId=79356&RQT=309&VName=PQD.

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Ahmad, Bashar I. "Applications of nonuniform sampling in wideband multichannel communication systems". Thesis, University of Westminster, 2011. https://westminsterresearch.westminster.ac.uk/item/8zwv9/applications-of-nonuniform-sampling-in-wideband-multichannel-communication-systems.

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This research is an investigation into utilising randomised sampling in communication systems to ease the sampling rate requirements of digitally processing narrowband signals residing within a wide range of overseen frequencies. By harnessing the aliasing suppression capabilities of such sampling schemes, it is shown that certain processing tasks, namely spectrum sensing, can be performed at significantly low sampling rates compared to those demanded by uniform-sampling-based digital signal processing. The latter imposes sampling frequencies of at least twice the monitored bandwidth regardless of the spectral activity within. Aliasing can otherwise result in irresolvable processing problems, as the spectral support of the present signal is a priori unknown. Lower sampling rates exploit the processing module(s) resources (such as power) more efficiently and avoid the possible need for premium specialised high-cost DSP, especially if the handled bandwidth is considerably wide. A number of randomised sampling schemes are examined and appropriate spectral analysis tools are used to furnish their salient features. The adopted periodogram-type estimators are tailored to each of the schemes and their statistical characteristics are assessed for stationary, and cyclostationary signals. Their ability to alleviate the bandwidth limitation of uniform sampling is demonstrated and the smeared-aliasing defect that accompanies randomised sampling is also quantified. In employing the aforementioned analysis tools a novel wideband spectrum sensing approach is introduced. It permits the simultaneous sensing of a number of nonoverlapping spectral subbands constituting a wide range of monitored frequencies. The operational sampling rates of the sensing procedure are not limited or dictated by the overseen bandwidth antithetical to uniform-sampling-based techniques. Prescriptive guidelines are developed to ensure that the proposed technique satisfies certain detection probabilities predefined by the user. These recommendations address the trade-off between the required sampling rate and the length of the signal observation window (sensing time) in a given scenario. Various aspects of the introduced multiband spectrum sensing approach are investigated and its applicability highlighted.
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Zhu, Benyuan. "Multichannel grating cavity laser for optically multiplexed communication systems". Thesis, University of Bath, 1996. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320438.

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Belkeir, Nasr Eddine. "Multicast communication in distributed systems with dynamic groups". Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/8134.

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Cameron, Rick. "Performance analysis of CDMA systems in multipath channels". Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-10312009-020344/.

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Sin, Chun Yin. "Performance analysis of multi-user wireless network /". View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?ECED%202006%20SIN.

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Vajipeyajula, Mani Kishore. "Clustered multicarrier systems for very wideband wireless communications". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 4.92 Mb., 53 p, 2005. http://wwwlib.umi.com/dissertations/fullcit/1428250.

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Talpade, Rajesh R. "Towards ubiquitous internet multicast : convergence mechanisms and data transfer reliability". Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/8297.

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Chiu, Hon-sun, e 邵漢新. "Channel assignment and routing in multi-channel multi-interface wireless networks". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42182050.

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Libri sul tema "Multichannel communication systems"

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Kirkeby, O. Fast deconvolution of multi-channel systems using regularisation. Southampton: University of Southampton, Institute of Sound and Vibration Research, 1996.

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Bostick, Emily. The wireless primer: A basic description of MMDS television systems. East Syracuse, N.Y. (7395 Taft Park Dr., East Syracuse 13057): Electric Press, 1995.

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Vaughan, Rodney. Channels, Propagation and Antennas for Mobile Communications. Stevenage: IET, 2003.

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Multichannel optical networks. Dordrecht: Kluwer Academic Publishers, 2000.

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Wan, Peng-Jun. Multichannel optical networks. New Brunswick, NJ: Rutgers University, 1998.

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Multichannel error correction code decoder. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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United States. National Aeronautics and Space Administration., a cura di. Advanced technology for a satellite multichannel demultiplexer/demodulator. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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D, Ivancic William, e United States. National Aeronautics and Space Administration., a cura di. Multichannel demultiplexer/demodulator technologies for future satellite communication systems. [Washington, DC]: National Aeronautics and Space Administration, 1992.

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D, Ivancic William, e United States. National Aeronautics and Space Administration., a cura di. Multichannel error correction code decoder. [Washington, DC]: National Aeronautics and Space Administration, 1994.

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1970-, Wan Peng-Jun, Du Dingzhu, Pardalos P. M. 1954- e DIMACS Workshop on Multichannel Optical Networks: Theory and Practice (1998 : Rutgers University), a cura di. Multichannel optical networks: Theory and practice : DIMACS Workshop, March 16-19, 1998. Providence, R.I: American Mathematical Society, 1998.

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Capitoli di libri sul tema "Multichannel communication systems"

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Kabashkin, Igor. "Dependability of Multichannel Communication System with Maintenance Operations for Air Traffic Management". In Advances in Intelligent Systems and Computing, 256–63. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-19501-4_25.

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Sabella, R., e P. Lugli. "Multichannel Optical Systems". In High Speed Optical Communications, 233–52. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5275-8_11.

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Weik, Martin H. "multichannel trunking and switching system". In Computer Science and Communications Dictionary, 1051. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_11868.

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Weik, Martin H. "Joint Multichannel Trunking and Switching System". In Computer Science and Communications Dictionary, 849. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_9723.

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Bray, John. "The Engineers of the Early Multichannel Telephony Coaxial Cable Systems". In The Communications Miracle, 135–51. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-6038-2_10.

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Rodríguez-Calvache, Mónica, Andrés Calle, Sara Valderrama, Isabel Arango López e José David López. "Analysis of Exact Electrode Positioning Systems for Multichannel-EEG". In Communications in Computer and Information Science, 523–34. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00350-0_43.

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Mandel, A. S., e V. A. Laptin. "Channel Switching Threshold Strategies for Multichannel Controllable Queuing Systems". In Communications in Computer and Information Science, 259–70. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-66242-4_21.

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Sundar, D. Shanmuga, V. Nidhyavijay, T. Sridarshini e A. Sivanantha Raja. "Performance analysis of a multichannel WDM hybrid optical communication system for long haul communication". In Frontier Research and Innovation in Optoelectronics Technology and Industry, 347–54. London, UK : CRC Press/Balkema, an imprint of the Taylor & Francis Group, [2019]: CRC Press, 2018. http://dx.doi.org/10.1201/9780429447082-51.

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Bystrov, Kirill, Alexander Dvorkovich, Viktor Dvorkovich e Gennady Gryzov. "Usage of Video Codec Based on Multichannel Wavelet Decomposition in Video Streaming Telecommunication Systems". In Communications in Computer and Information Science, 108–19. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66836-9_10.

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Jia, Peigang, e Sirui He. "Design of Multichannel Data Real-Time Processing System Based on Serial Port Communication". In Proceedings of the 4th International Conference on Computer Engineering and Networks, 889–95. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-11104-9_102.

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Atti di convegni sul tema "Multichannel communication systems"

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Meissner, P. "Coherent multichannel communication systems". In Optical Fiber Communication Conference. Washington, D.C.: OSA, 1992. http://dx.doi.org/10.1364/ofc.1992.fc1.

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Willner, Alan E. "Multichannel optical communication systems". In Critical Review Collection. SPIE, 1994. http://dx.doi.org/10.1117/12.192197.

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KAZOVSKY, LEONID G. "Multichannel coherent optical communications systems". In Optical Fiber Communication Conference. Washington, D.C.: OSA, 1987. http://dx.doi.org/10.1364/ofc.1987.tug1.

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IANNONE, P., e T. E. DARCIE. "Intermodulation interference in high-frequency multichannel subcarrier systems". In Optical Fiber Communication Conference. Washington, D.C.: OSA, 1988. http://dx.doi.org/10.1364/ofc.1988.tud4.

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MAEDA, M. W., W. B. SESSA, W. I. WAY, A. YI-YAN, R. WELTER, L. CURTIS e R. I. LAMING. "Fiber four-wave mixing in multichannel coherent systems". In Optical Fiber Communication Conference. Washington, D.C.: OSA, 1990. http://dx.doi.org/10.1364/ofc.1990.tue4.

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Mazur, M., N. K. Fontaine, Haoshuo Chen, R. Ryf, D. T. Neilson, G. Raybon, A. Adamiecki, S. Corteselli e J. Schröder. "Optical frequency comb modulator for multichannel systems". In 45th European Conference on Optical Communication (ECOC 2019). Institution of Engineering and Technology, 2019. http://dx.doi.org/10.1049/cp.2019.1029.

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Farkasvolgyi, Andrea, e Istvan Frigyes. "Correlation Problems in Optical Multichannel Systems in Satellite Communication". In 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring). IEEE, 2019. http://dx.doi.org/10.1109/piers-spring46901.2019.9017666.

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Chang, G. K., W. P. Hong, R. Bhat, C. K. Nguyen, J. L. Gimlett, C. Lin e J. R. Hayes. "Novel electronically switched multichannel receiver for wavelength-division-multiplexing systems". In Optical Fiber Communication Conference. Washington, D.C.: OSA, 1991. http://dx.doi.org/10.1364/ofc.1991.tub5.

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Ahmed, Ammar, Dennis Silage e Yimin D. Zhang. "Chance Constrained Beamforming for Joint Radar-Communication Systems". In 2020 IEEE 11th Sensor Array and Multichannel Signal Processing Workshop (SAM). IEEE, 2020. http://dx.doi.org/10.1109/sam48682.2020.9104227.

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Chen, J. H. "Application of integrated active filters in multichannel optical communication systems". In 11th International Conference on Integrated Optics and Optical Fibre Communications. 23rd European Conference on Optical Communications IOOC-ECOC97. IEE, 1997. http://dx.doi.org/10.1049/cp:19971533.

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