Performance Of A Frequency Hop Spread Spectrum Multiple Access Radio Network In A Factory Environment
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Performance Of A Frequency Hop Spread Spectrum Multiple Access Radio Network In A Factory Environment
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Author : Aquilino B. Orichi-Batajolo
language : en
Publisher:
Release Date : 1994
Performance Of A Frequency Hop Spread Spectrum Multiple Access Radio Network In A Factory Environment written by Aquilino B. Orichi-Batajolo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Spread spectrum communications categories.
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).
Spectrum Efficiency For Multiple Independent Spread Spectrum Land Mobile Radio Systems
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Author : Leslie A. Berry
language : en
Publisher:
Release Date : 1978
Spectrum Efficiency For Multiple Independent Spread Spectrum Land Mobile Radio Systems written by Leslie A. Berry and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Radio frequency allocation 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 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.
Throughput Performance Of Spread Spectrum Multiple Access Packet Radio Networks
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Author : James Scott Storey
language : en
Publisher:
Release Date : 1986
Throughput Performance Of Spread Spectrum Multiple Access Packet Radio Networks written by James Scott Storey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
In this dissertation, an integrated model of an unslotted spread spectrum multiple access (SSMA) packet radio network is developed. The model combines a detailed model of the radio channel, accounting for the effect of multi-user interference, with a network model that traces the evolution of the number of interfering transmissions and accounts for the half-duplex nature of the radios. A new analysis of the performance of a Viterbi decoder in a packet radio environment allows the model to be used for a system with convolutional Forward Error Correction (FEC) coding. The synchronization process is also analyzed and incorporated into the integrated model. The model makes use of several approximations for tractability. A discrete event simulation is used to validate these approximations. The integrated model leads to numerical results which show the throughput and the probability of success for a packet as a function of the channel level and network level parameters. Specifically, for the radio channel, these parameter include the modulation format, the received signal power, the spread spectrum bandwidth expansion, and the presence or absence of FEC coding. Also, the throughput is found as a function of the synchronization parameters, such as the detection thresholds and correlation times, for several different synchronization circuits and preamble structures. At the network level, the parameters are the traffic rate and the network size. The random access protocols considered include unslotted ALOHA and channel load sensing, which is an extension of carrier sensing to an SSMA network. (jhd).
Thoughput Performance Of Spread Spectrum Multiple Access Packet Radio Networks
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Author : Stanford University. Computer Systems Laboratory
language : en
Publisher:
Release Date : 1987
Thoughput Performance Of Spread Spectrum Multiple Access Packet Radio Networks written by Stanford University. Computer Systems Laboratory 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.
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.
Southeastcon 94
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Author :
language : en
Publisher:
Release Date : 1994
Southeastcon 94 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Electric engineering categories.
Radio Resource Management
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Author : Source Wikipedia
language : en
Publisher: University-Press.org
Release Date : 2013-09
Radio Resource Management written by Source Wikipedia and has been published by University-Press.org this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09 with categories.
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 70. Chapters: Code division multiple access, Spread spectrum, Frequency-hopping spread spectrum, Software-defined radio, MIMO, 2G spectrum scam, PU2RC, Cellular network, Precoding, Multi-user MIMO, Cognitive radio, Handover, Cooperative diversity, 3G MIMO, CDMA spectral efficiency, Diversity combining, Antenna diversity, Channel state information, Cellular traffic, Cellular frequencies, History of wireless mesh networking, Frequency allocation, Trunked radio system, Zero-forcing precoding, Mobile ad hoc network, Single-frequency network, Channel allocation schemes, Spatial multiplexing, Diversity scheme, Maximum throughput scheduling, Proportionally fair, Space-time block coding based transmit diversity, Open spectrum, Multi-frequency network, Space-time code, Power control, Co-channel interference, Link adaptation, Hierarchical modulation, Dynamic single-frequency networks, Radio Link Protocol, Many antennas, Macrodiversity, IEEE 802.11k-2008, Soft handover, IEEE 802.11h-2003, Single antenna interference cancellation, Reconfigurability, Dynamic bandwidth allocation, Spatial capacity, Cyclic delay diversity, Signal-to-interference ratio, Bandplan, Cell breathing, SURAN, Diversity gain, Time diversity, Rxqual, Carrier-to-noise-density ratio, Diversity Coding.