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Second-Order LMS Based Per-Survivor Processing Decoder for Space-Time Trellis Code

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Abstract

An adaptive space-time trellis code (STTC) decoder with thesecond-order LMS (SOLMS) based channel tracking is studied in thispaper. We first show that per-survivor processing (PSP) can beadopted as the approximation of the adaptive maximum likelihoodsequence detection (MLSD) of STTC when there are no periodicallyinserted orthogonal pilot sequences (PIOPS). With thispresupposition, we propose a new decoder for STTC, called SOLMSbased PSP decoder, in which we use min-max optimum SOLMSalgorithm for channel tracking when some ``boundary'' statisticalknowledge of the fading channel is available. Intensive computersimulations have been done to compare the performance of theproposed decoder with other known decoding methods as applied tolong burst transmissions.

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Authors and Affiliations

  1. Dept. Electronic Engineering, Tsinghua University, Beijing, P.R. China

    Yisheng Xue & Xuelong Zhu

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  1. Yisheng Xue
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  2. Xuelong Zhu
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Xue, Y., Zhu, X. Second-Order LMS Based Per-Survivor Processing Decoder for Space-Time Trellis Code. Wireless Personal Communications 25, 223–239 (2003). https://doi.org/10.1023/A:1024027610218

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  • DOI: https://doi.org/10.1023/A:1024027610218

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