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Normalized-Energy-Detector Serial Search Acquisition Scheme for Packet Communication Systems with Non-ideal AGC

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Abstract

Automatic gain control (AGC) is extensively used in practical packet communication systems, but the effect is generally not taken into account in code acquisition research. A dedicated investigation in this paper highlights the effect of non-ideal AGC on the performance of the extensively used envelope-detector (ED) serial search acquisition (SSA) scheme, for the performance loss due to non-ideal AGC is significant. To improve the acquisition performance and eliminate the effect of AGC, a normalized-energy-detector (NED) SSA scheme is proposed. Theoretical analysis and numerical results on the performance of the proposed scheme are given. Simulations are also performed to further justify the analysis and numerical results. Performance comparisons show that the proposed scheme outperforms the ED SSA scheme with ideal and non-ideal AGC. Moreover, the proposed scheme is free from influence of AGC, and no performance loss can be found even when using non-ideal AGC for the proposed method.

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Authors and Affiliations

  1. State Key Laboratory on Microwave and Digital Communications, Tsinghua University, Beijing, China

    Zhenyu Xiao, Depeng Jin & Lieguang Zeng

  2. Tsinghua National Laboratory for Information Science and Technology, Beijing, China

    Zhenyu Xiao, Depeng Jin & Lieguang Zeng

  3. Department of Electronic Engineering, Tsinghua University, 100084, Beijing, China

    Zhenyu Xiao, Depeng Jin & Lieguang Zeng

Authors
  1. Zhenyu Xiao
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  2. Depeng Jin
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  3. Lieguang Zeng
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Corresponding author

Correspondence to Zhenyu Xiao.

Additional information

This work is supported by the The State Hi-Tech Research and Development Plan (863 plan) under grant No. 2009AA011205, National Science and Technology Major Project under grant No. 2009ZX03006-007-02 and No. 2011ZX03004-001-01, and the Natural Science Foundation under grant No. 60928001 and No. 60972019.

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Xiao, Z., Jin, D. & Zeng, L. Normalized-Energy-Detector Serial Search Acquisition Scheme for Packet Communication Systems with Non-ideal AGC. Wireless Pers Commun 65, 895–907 (2012). https://doi.org/10.1007/s11277-011-0318-3

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  • DOI: https://doi.org/10.1007/s11277-011-0318-3

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