A Two-step MF Signal Acquisition Method for Wireless Underground Sensor Networks

Wei Liang1, Yong Xie1, Xuhui Chen1, Osama Hosam2 and Xiaoyan Chen1

  1. Department of Software Engineering, Xiamen University of Technology
    Xiamen, Fujian 361024,China
    fwliang, yongxie, xhchen, yxcg@xmut.edu.cn
  2. College of Computer Science and Engineering, Taibah University
    Taibah 41477, Saudi Arabia
    mohandesosama@gmail.com

Abstract

Signal acquisition plays a critical role on the bit error rate (BER) of a direct sequence spread spectrum (DS/SS) communication system working with low frequency. In this paper, we propose a new signal acquisition method. The acquisition process includes coarse matched filter (MF) location in the first stage and an accurate MF acquisition as a verification mode for the second stage. The performance metrics, including mean acquisition time (MAT) and power consumption, are accuracy. The results indicate that when the signal-to-noise ratio (SNR) keeping consistent, the MAT of the proposed method is less than the original one. When the SNR is around -5dB, the system mismatch rate is about 5.6x10^-4, which takes only one percent of those achieved in the original acquisition algorithms. The twostep MF acquisition method is stable except its power consumption being a little higher than the original method.

Key words

acquisition, spread spectrum, signal processing, wireless communication, underground sensor networks

Digital Object Identifier (DOI)

https://doi.org/10.2298/CSIS160224019L

Publication information

Volume 13, Issue 2 (June 2016)
Year of Publication: 2016
ISSN: 1820-0214 (Print) 2406-1018 (Online)
Publisher: ComSIS Consortium

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How to cite

Liang, W., Xie, Y., Chen, X., Hosam, O., Chen, X.: A Two-step MF Signal Acquisition Method for Wireless Underground Sensor Networks. Computer Science and Information Systems, Vol. 13, No. 2, 623–638. (2016)