Open AccessEfficient coding schemes for low‐rate wireless personal area networks
Author(s) -
Qian Hua,
Dai Shengchen,
Kang Kai,
Wang Xudong
Publication year - 2016
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2015.0699
Subject(s) - computer science , bch code , coding gain , code rate , constant weight code , decoding methods , polynomial code , encoder , wireless , erasure code , coding (social sciences) , computer network , forward error correction , repetition code , algorithm , wireless network , concatenated error correction code , block code , telecommunications , mathematics , statistics , operating system
The emerging market of Internet of things has created great demand for low‐cost, low‐power wireless technologies. Existing IEEE 802.15.4 standard is designed for low‐rate wireless personal area networks (LR‐WPANs). However, current standard does not fully utilise the benefit of the code redundancy. In this study, the authors propose new coding schemes for LR‐WPANs with improved coding gain. They first propose a block code based on extended Bose–Chaudhuri–Hocquenghem (BCH) code that increases the minimum Hamming distance compared with the existing code used in LR‐WPANs. The computational complexity of the encoder and decoder remains about the same. In addition, by applying the extended BCH code directly to LR‐WPANs, the data rate of the system can be increased without sacrificing coding performance. They further propose a tail‐biting convolutional (TBC) code with optimum generator polynomials for LR‐WPANs. The proposed TBC code enjoys significant performance improvement while preserving the effective code rate as well as a low decoding complexity. Simulation results validate the effectiveness of the proposed coding schemes.