Title :
Distributed Turbo Code for Relay Channel with Dual-Systematic Bits
Author :
Lingyun Li ; Shujuan Hou ; Peiyao Yang
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
A novel distributed turbo code (DTC), called dual-systematic bits DTC (DS-DTC), is proposed for a two-hop relay system. The source broadcasts a punctured turbo code to both relay and destination. After iterative decoding the received codes, the relay forwards the systematic bits to the destination in case of successful cyclic redundancy check (CRC). And a modified turbo decoder based on double versions of systematic bits is designed at destination in order to make full use of the information coming from source and relay. The superiority of the proposed DS-DTC to conventional DTC and punctured DTC is revealed through simulations.
Keywords :
cyclic redundancy check codes; iterative decoding; relay networks (telecommunication); turbo codes; wireless channels; cyclic redundancy check; distributed turbo code; dual-systematic bits; iterative decoding; modified turbo decoder; punctured turbo code; relay channel; two-hop relay system; Bit error rate; Decoding; Relays; Signal to noise ratio; Systematics; Turbo codes; distributed turbo code; error propagation; relay;
Conference_Titel :
Computer and Information Technology (CIT), 2014 IEEE International Conference on
Conference_Location :
Xi´an
DOI :
10.1109/CIT.2014.155
