NDLI: M-ary Code Shift Keying Direct Sequence Spread Spectrum with Gold Sequence Using in Underwater Acoustic Communication

Content Provider	ACM Digital Library
Author	Sun, ZongXin Qiao, Gang Yu, Yang
Abstract	Owing to its anti-noise and anti-fading abilities, spread spectrum communication is widely applied in the underwater acoustic (UWA) field. But the data rate of the Direct Sequence Spread Spectrum (DSSS) is very low, and cannot meet the needs of long-range UWA communication at present. This paper proposes a method, named M-ary CSK-DS, which combines M-ary DSSS schemes with code shift keying (CSK). Gold sequences, as the basic sequences, occupy a fine periodic auto correlation function (PACF), a periodic cross correlation function (PCCF) and a large code set size. This method utilizes sequence information, code phase information, and polarity information. The influence of PACF and PCCF on the proposed method is analyzed over the AWGN and UWA channels. The performance of M-ary CSK-DS is evaluated through simulation over AWGN and UWA channels. The results show that M-ary CSK-DS is superior to the conventional methods. In the last part of this paper, an experiment demonstrates the correctness of the simulation.
Starting Page	1
Ending Page	4
Page Count	4
File Format	PDF
ISBN	9781450332774
DOI	10.1145/2671490.2674942
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2014-11-12
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Code shift keying Underwater acoustic communication M-ary Direct sequences spread spectrum
Content Type	Text
Resource Type	Article

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M-ary Code Shift Keying Direct Sequence Spread Spectrum with Gold Sequence Using in Underwater Acoustic Communication