Performance Of Cellular Frequency Hopped Spread Spectrum Radio Networks
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Author | : Jeffrey W. Gluck |
Publisher | : |
Total Pages | : 44 |
Release | : 1989 |
Genre | : |
ISBN | : |
Download Performance of Cellular Frequency-Hopped Spread-Spectrum Radio Networks Book in PDF, Epub and Kindle
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).
Author | : |
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Total Pages | : |
Release | : 1986 |
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Download الماسونية في المنطقة 425 Book in PDF, Epub and Kindle
Author | : Thomas Toftegaard Nielsen |
Publisher | : Springer Science & Business Media |
Total Pages | : 343 |
Release | : 2007-05-08 |
Genre | : Technology & Engineering |
ISBN | : 0306473135 |
Download Performance Enhancements in a Frequency Hopping GSM Network Book in PDF, Epub and Kindle
Due to the explosive global growth in the number of mobile subscribers, as well as the growth predicted in the mobile data segment, the need for improved spectrum efficiency on the radio interface becomes more and more important. Frequency hopping (FH) is an effective method for improving the spectrum efficiency. One of the advantages of FH is that it can be combined with other spectral efficiency improving features like power control, handover and reuse partitioning. Performance Enhancements in a Frequency Hopping GSM Network covers FH and some of the additional features in detail. It begins with an in-depth description of the basic concept of FH on link level as well as on system level. Different methods have been used for analysis, such as link level simulations, network level simulations and classic tele-traffic theory. Special features of Performance Enhancements in a Frequency Hopping GSM Network: Combines the practical experiences of operator and vendor with more theoretical research methods. An in-depth treatment of prevailing problems in GSM networks; Presentation of a new method, computer-aided network design (CAND), which has been developed to analyse the complex network structures of a GSM network. CAND provides the possibility for more realistic performance evaluations than conventional methods; Provides GSM-specific analysis of functionality improvements in power control, discontinuous transmission, and several handover algorithms; Explanation of the quality and capacity gains of features like the combination of FH and reuse partitioning, referred to as intelligent frequency hopping; A frequency planning method for FH GSM networks is presented. This method exploits the benefits from FH directly in the allocation process, increasing the overall frequency plan.
Author | : Aquilino B. Orichi-Batajolo |
Publisher | : |
Total Pages | : 154 |
Release | : 1994 |
Genre | : Spread spectrum communications |
ISBN | : |
Download Performance of a Frequency Hop Spread Spectrum Multiple Access Radio Network in a Factory Environment Book in PDF, Epub and Kindle
Author | : Ramanarayanan Viswanathan |
Publisher | : |
Total Pages | : 214 |
Release | : 1983 |
Genre | : |
ISBN | : |
Download Performance of Frequency Hopping Spread Spectrum Mobile Radio Systems Book in PDF, Epub and Kindle
Author | : Leslie A. Berry |
Publisher | : |
Total Pages | : 76 |
Release | : 1978 |
Genre | : Radio frequency allocation |
ISBN | : |
Download Spectrum Efficiency for Multiple Independent Spread-spectrum Land Mobile Radio Systems Book in PDF, Epub and Kindle
Author | : Olav Berg |
Publisher | : IET |
Total Pages | : 480 |
Release | : 1998 |
Genre | : Technology & Engineering |
ISBN | : 9780852969359 |
Download Spread Spectrum in Mobile Communication Book in PDF, Epub and Kindle
Presenting a technology that adapts radio communication to computational data information processing networks, first reviews the concepts of modern mobile communication and the user requirements and operational environment that influence the design of mobile systems. Then focuses on mobility issues for a decentralized network topology and the effects of spread spectrum modulation on radios used in packet-switched networks. Shows how connecting radio terminals using packet switching provides a highly flexible and efficient solution for mobile users. Annotation copyrighted by Book News, Inc., Portland, OR
Author | : S. C. Gupta |
Publisher | : |
Total Pages | : 88 |
Release | : 1984 |
Genre | : |
ISBN | : |
Download Spread Spectrum Mobile Radio Communications Book in PDF, Epub and Kindle
In this report, we present some additional results on the performance of Frequency Hopped Multilevel FSK (FH-MFSK) systems under mobile environment. This is followed by a review on packet radio networks and some results on the performance of a packet transmission technique in mobile radio channels. Simulation studies confirm the theoretical performance estimate of a FH-MFSK hard-limited receiver operating under adjacent cell interference conditions. Both simulation and approximate theoretical considerations testify the usefulness of a nonparametric receiver based on rank-sums. This receiver also possesses a robustness against changing probability models. It is believed that this receiver is a competing alternative to the parametric receivers, such as the hard-limited receiver. Originator-supplied keywords include: Spread Spectrum, Mobile Radio, Packet transmission, Packet Radio Network; and Adjacent Cell Interference.
Author | : Marvin K. Simon |
Publisher | : McGraw Hill Professional |
Total Pages | : 1250 |
Release | : 2001-09-22 |
Genre | : Technology & Engineering |
ISBN | : 0071395709 |
Download Spread Spectrum Communications Handbook, Electronic Edition Book in PDF, Epub and Kindle
The acknowledged Spread-Spectrum Bible the most complete reference in the field! INCLUDESCD-ROM CONTAININGTHE ENTIRE BOOKIN FULLY-SEARCHABLE PDF Spread-spectrum systems have found important commercial applications in CDMA cellular networks and wireless personal communication networks. Communications engineers and technicians now have ready access to a wealth of spread-spectrum information in this exhaustive handbook the most comprehensive and authoritative compendium on spread-spectrum systems available anywhere. Written by recognized authorities in the field, the Handbook presents both theoretical basics and practical applications, providing succinct, results-oriented solutions to engineering problems. Starting with basic concepts and system models, the book covers: Anti-jamming communication systems Coherent direct-sequence systems Non-coherent frequency-hopped systems Coherent and differentially coherent modulation techniques Pseudonoise acquistion and tracking in direct sequence receivers Time and frequency synchronization of frequency-hopped receivers Low probability of intercept communications In addition, it offers an in-depth look at multiple access communications and positioning systems and discusses the growth of spread-spectrum applications. INCLUDES CD-ROM CONTAINING THE ENTIRE BOOK IN FULLY SEARCHABLE PDF
Author | : KHAIRI ASHOUR. MOHAMED |
Publisher | : |
Total Pages | : 0 |
Release | : 1993 |
Genre | : |
ISBN | : |
Download Frequency-Hopped Spread-Spectrum Packet Radio Networks Book in PDF, Epub and Kindle