LDMC design for low complexity MIMO detection and efficient decoding

EURASIP Journal on Wireless Communications and Networking

Sunil Chinnadurai¹  Poongundran Selvaprabhu²  Jia Hou³  Moon Ho Lee⁴  Han Hai⁵  Xue-Qin Jiang⁵ 

[1] Department of Electronics Engineering, Hanyang University;Department of Information and Communication Engineering, Inha University;Division of Electronics and Information Engineering, Chonbuk National University;School of Electronic and Information Engineering, Soochow University;School of Information Science and Technology, Donghua University;

关键词: Low-density parity-check (LDPC) codes;    Multiple-input multiple-output (MIMO);    Sphere decoding (SD);    Low-density MIMO codes (LDMCs);   

DOI  :  10.1186/s13638-018-1202-6

来源: DOAJ

【 摘 要 】

Abstract Low-density multiple-input multiple-output code (LDMC) can reduce the complexity of tree-search detection in MIMO systems. In this paper, we present a new modified progressive edge-growth (PEG) algorithm to construct large girth LDMCs, which are referred to as PEG-LDMCs. We analyze the complexity of the LDMC constrained sphere decoding (SD) and show that the LDMC constrained SD detection can be used for high reliability of the data transmission in MIMO systems. Furthermore, we propose two new efficient iterative decoding algorithms for LDMCs, which are high speed serial decoding and fast convergence shuffled decoding. Finally, we compare the bit error rate (BER) performance of PEG-LDMCs to that of the existing LDMCs. The simulation results show that the PEG-LDMCs can achieve better BER performance than that of the existing LDMCs.

【 授权许可】

Unknown