Performance Evaluation Of Frequency Hopped Spread Spectrum Multi Hop Networks
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Performance Evaluation Of Frequency Hopped Spread Spectrum Multi Hop Networks
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Author : J. W. Gluck
language : en
Publisher:
Release Date : 1988
Performance Evaluation Of Frequency Hopped Spread Spectrum Multi Hop Networks written by J. W. Gluck and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
Primary and secondary multiple-access interference processes are characterized for multi-hop packet radio networks, in which users are assumed to be Poisson-distributed in the plane and to use frequency hopped spread-spectrum signaling with a receiver-oriented assignment of frequency-hopping patterns. The throughput per node and the average forward progress are then evaluated for frequency-hopped multi-hop networks that employ (i) random forward routing with fixed transmission radius (RFR) and(ii) most forward progress routing with fixed transmission radius (MFR). The optimal average number of neighbors and transmission radius are derived for these cases when Reed-Solomon forward-error-control coding with minimum distance decoding or binary convolutional coding with Viterbi decoding is employed.
Expected Forward Progress And Throughput Of Multi Hop Frequency Hopped Spread Spectrum Networks
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Author :
language : en
Publisher:
Release Date : 1987
Expected Forward Progress And Throughput Of Multi Hop Frequency Hopped Spread Spectrum Networks written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.
Secondary multiple-access interference processes are characterized for multi-hop packet radio networks in which users are assumed to be Poisson-distributed in the plane and to use frequency-hopped spread-spectrum signaling with a receiver-oriented assign- ment of frequency-hopping patterns. The throughput per node and the average forward progress are then evaluated for frequency-hopped multi-hop networks which employ (i) random forward routing with fixed transmission radius (RFR) and (ii) most forward pro- gress routing with fixed transmission radius (MF%R). The optimal average number of neighbors and transmission radius are derived for these cases when Reed-Solomon forward-error-control coding with minimum distance decoding or binary convolutional coding with Viterbi decoding is employed.
Performance Analysis Of Multihop Packet Radio Networks Under Slotted Frequency Hopping Access Scheme
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Author : Hahan Rahardjo
language : en
Publisher:
Release Date : 1987
Performance Analysis Of Multihop Packet Radio Networks Under Slotted Frequency Hopping Access Scheme written by Hahan Rahardjo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Frequency response (Electrical engineering) categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
The Probability Of Multiple Correct Packet Receptions In A Multireceiver Frequency Hopped Spread Spectrum System
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Author :
language : en
Publisher:
Release Date : 1991
The Probability Of Multiple Correct Packet Receptions In A Multireceiver Frequency Hopped Spread Spectrum System written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
In this report we develop exact expressions and approximations for the probability of exactly l correct packet receptions in a group of m receivers, given that k packets are transmitted simultaneously from users employing frequency-hopping spread-spectrum (FH/SS) and Reed-Solomon (RS) coding. This quantity is essential for the design and performance evaluation of multiple-access protocols in spread-spectrum packet radio networks. The evaluations are carried out for MFSK modulation with noncoherent demodulation and various types of RS minimum-distance decoding with erasures and/or errors decoding. Packet synchronous FH/SSMA systems that are hop-synchronous or hop- asynchronous are considered. The exact expressions developed have computational complexity that grows exponentially with m, thus making their evaluation for large m prohibitive. In light of such difficulties, two approximations are considered: one based on Gaussian multivariate distributions with linear computational requirements in m and k, and another based on the assumption of independent receiver operation (IROA), which has minimum computational complexity. Extensive comparisons of the approximations with the exact results establish their validity over different ranges of the system parameters. (Author).
Performance Evaluation Of Spread Spectrum Based Wireless Ad Hoc Networks
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Author : Alshah Hamid Raza
language : en
Publisher:
Release Date : 2007
Performance Evaluation Of Spread Spectrum Based Wireless Ad Hoc Networks written by Alshah Hamid Raza and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Performance Analysis Of Frequency Hopped Spread Spectrum Multiple Access Fh Ssma Communication Systems
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Author : Khalid Ali Qaraq'e
language : en
Publisher:
Release Date : 1997
Performance Analysis Of Frequency Hopped Spread Spectrum Multiple Access Fh Ssma Communication Systems written by Khalid Ali Qaraq'e and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
Performance Study Of Modified Frequency Hopping Spread Spectrum Multiple Access Packet Communication Systems
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Author : Ki Jong Hong
language : en
Publisher:
Release Date : 1982
Performance Study Of Modified Frequency Hopping Spread Spectrum Multiple Access Packet Communication Systems written by Ki Jong Hong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.
Performance Analysis Of Multi Channel And Multi Traffic On Wireless Communication Networks
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Author : Wuyi Yue
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-05-08
Performance Analysis Of Multi Channel And Multi Traffic On Wireless Communication Networks written by Wuyi Yue and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-08 with Computers categories.
With the rapidly increasing penetration of laptop computers and mobile phones, which are primarily used by mobile users to access Internet s- vices like e-mail and World Wide Web (WWW) access, support of Internet services in a mobile environment is an emerging requirement. Wireless n- works have been used for communication among fully distributed users in a multimedia environment that has the needs to provide real-time bursty traffic (such as voice or video) and data traffic with excellent reliability and service quality. To satisfy the huge wireless multimedia service demand and improve the system performance, efficient channel access methods and analytical methods must be provided. In this way very accurate models, that faithfully reproduce the stochastic behavior of multimedia wireless communication and computer networks, can be constructed. Most of these system models are discrete-time queueing systems. Queueing networks and Markov chains are commonly used for the p- formance and reliability evaluation of computer, communication, and m- ufacturing systems. Although there are quite a few books on the individual topics of queueing networks and Markov chains, we have found none that covers the topics of discrete-time and continuous-time multichannel mul- traffic queueing networks. On the other hand, the design and development of multichannel mul- hop network systems and interconnected network systems or integrated n- works of multimedia traffic require not only such average performance m- sures as the throughput or packet delay but also higher moments of traffic departures and transmission delay.
Performance Of Cellular Frequency Hopped Spread Spectrum Radio Networks
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Author : Jeffrey W. Gluck
language : en
Publisher:
Release Date : 1989
Performance Of Cellular Frequency Hopped Spread Spectrum Radio Networks written by Jeffrey W. Gluck and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Multiple access interference is characterized for cellular mobile networks, in which users are assumed to be Poisson-distributed in the plane and employ frequency-hopped spread-spectrum signaling with transmitter-oriented assignment of frequency-hopping patterns. Exact expressions for the bit error probabilities are derived for binary coherently demodulated systems without coding. Approximations for the packet error probability are derived for coherent and noncoherent systems and these approximations are applied when forward-error-control coding is employed. In all cases, the effects of varying interference power are accurately taken into account according to some propagation law. Numerical results are given in terms of bit error probability for the exact case and throughput for the approximate analyses. Comparisons are made with previously derived bounds and it is shown that these tend to be very pessimistic. Keywords: Communications network; Multiple access; Frequency hopping; Spread spectrum; Error control coding. (jhd).