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http://dx.doi.org/10.7840/KICS.2012.37.6A.438

Analysis of CRC-p Code Performance and Determination of Optimal CRC Code for VHF Band Maritime Ad-hoc Wireless Communication  

Cha, You-Gang (호서대학교 시스템제어공학과 신호 및 영상처리 연구실)
Cheong, Cha-Keon (호서대학교 시스템제어공학과 신호 및 영상처리 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.6A, 2012 , pp. 438-449 More about this Journal
Abstract
This paper presents new CRC-p codes for VHF band maritime wireless communication system based on performance analysis of various CRC codes. For this purpose, we firstly describe the method of determination of undetected error probability and minimum Hamming distance according to variation of CRC codeword length. By using the fact that the dual code of cyclic Hamming code and primitive BCH code become maximum length codes, we present an algorithm for computation of undetected error probability and minimum Hamming distance where the concept of simple hardware that is consisted of linear feedback shift register is utilized to compute the weight distribution of CRC codes. We also present construction of transmit data frame of VHF band maritime wireless communication system and specification of major communication parameters. Finally, new optimal CRC-p codes are presented based on the simulation results of undetected error probability and minimum Hamming distance using the various generator polynomials of CRC codes, and their performances are evaluated with simulation results of bit error rate based on the Rician maritime channel model and ${\pi}$/4-DQPSK modulator.
Keywords
dual code; undetected error probability; weight distribution;
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