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EURASIP Journal on Advances in Signal Processing
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Enhancing the Performance of Random Access Networks with Random Packet CDMA and Joint Detection

EURASIP Journal on Advances in Signal Processing volume 2009, Article number: 238103 (2008) Cite this article

Abstract

Random packet CDMA (RP-CDMA) is a recently proposed random transmission scheme which has been designed from the beginning as a cross-layer method to overcome the restrictive nature of the Aloha protocol. Herein, we more precisely model its performance and investigate throughput and network stability. In contrast to previous works, we adopt the spread Aloha model for header transmission, and the performance of different joint detection methods for the payload data is investigated. Furthermore, we introduce performance measures for multiple access systems based on the diagonal elements of a modified multipacket reception matrix, and show that our measures describe the upper limit of the vector of stable arrival rates for a finite number of users. Finally, we simulate queue sizes and throughput characteristics of RP-CDMA with various receiver structures and compare them to spread Aloha.

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Authors and Affiliations

  1. Military Air Systems, EADS Deutschland GmbH, 88039, Friedrichshafen, Germany

    Roland Kempter

  2. Department of Electrical and Computer Engineering, University of Utah, UT, 84112, USA

    Peiman Amini & Behrouz Farhang-Boroujeny

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  1. Roland Kempter
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  2. Peiman Amini
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  3. Behrouz Farhang-Boroujeny
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Correspondence to Roland Kempter.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kempter, R., Amini, P. & Farhang-Boroujeny, B. Enhancing the Performance of Random Access Networks with Random Packet CDMA and Joint Detection. EURASIP J. Adv. Signal Process. 2009, 238103 (2008). https://doi.org/10.1155/2009/238103

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  • DOI: https://doi.org/10.1155/2009/238103

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