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Adaptive Spatial Filtering for an FH/SSMA Packet Radio Network with Packet Combining

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Abstract

In this paper, packet throughput is analyzed and simulated for a show FH/SSMA packet radio network with adaptive antenna array and packet combining in a Rayleigh fading channel with shadowing. The packet throughput is defined as the average number of captured packets per slot. To enhance the throughput performance, an adaptive spatial filtering through adaptive antenna array and a packet combining scheme are employed. As a random access protocol, slotted ALOHA is considered, and synchronous memoryless hopping patterns are assumed. A packet consists of codewords from an (n, k) RS (Reed-Solomon) code. The tap weights of an adaptive processor is updated by RLS (recursive-least-square) algorithm. From the simulation results, it is shown that a pre-processing by adaptive antenna array and a post-processing by packet combining are very effective to improve reception performance of an FH/SSMA network.

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Authors and Affiliations

  1. Access Network Group, 8th Floor, Central Research and Development Center, SK Telecom, 9-1, Sunae-dong, Pundang-gu, Sungnam city, Kyunggi-do, 463-020, Korea

    Jin Young Kim Ph.D.

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  1. Jin Young Kim Ph.D.
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Kim, J.Y. Adaptive Spatial Filtering for an FH/SSMA Packet Radio Network with Packet Combining. International Journal of Wireless Information Networks 8, 37–47 (2001). https://doi.org/10.1023/A:1011333613059

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  • DOI: https://doi.org/10.1023/A:1011333613059

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