Authors: Xincheng Zhang; Shaoqian Li
Addresses: National Key Laboratory of Communications, University of Electronic Science and Technology of China, Chengdu, Si Chuan, China ' National Key Laboratory of Communications, University of Electronic Science and Technology of China, Chengdu, Si Chuan, China
Abstract: In this paper, a low-complexity joint design of bit-level and packet-level coding is investigated. In the proposed design structure, a low-complexity iterative decoding algorithm is considered, which is capable of using the Gaussian approximation method for analysing the decoding performance. When the performance of the bit-level coding is given, we analyse the asymptotic convergence of the packet-level coding, which is utilised for optimising the rate of the packet-level code. Based on our proposed optimisation method, an optimal code rate for the scheme can be theoretically acquired. Our numerical results show that the proposed low-complexity joint bit-packet coding scheme has an attractive performance.
Keywords: joint design; iterative decoding; Gaussian approximation; bit level coding; packet level coding; AWGN channels; additive white Gaussian noise; asymptotic convergence; optimisation.
International Journal of Wireless and Mobile Computing, 2015 Vol.9 No.2, pp.148 - 154
Received: 18 Apr 2015
Accepted: 04 May 2015
Published online: 19 Oct 2015 *