Title :
A novel parallel turbo coding technique based on frame split and trellis terminating
Author :
Wan, Ke ; Chen, Qingchun ; Fan, Pingzhi
Author_Institution :
Southwest Jiaotong Univ., Chengdu, China
Abstract :
A new parallel turbo encoding and decoding technique is introduced. In this technique, a long information data frame is first divided into subblocks which are then encoded with trellis terminating and decoded by parallel multiple SISO modules. It is shown that, at a slight increase in hardware complexity and a slight loss in the transmission efficiency due to the extra terminating bits appended, the proposed scheme can effectively reduce the decoding delay, and at the same time achieve noticeably better error performance compared with the regular schemes, especially in high code rate situation.
Keywords :
decoding; encoding; error correction codes; parallel algorithms; trellis codes; turbo codes; data frame; decoding delay; hardware complexity; parallel decoding; parallel multiple SISO module; parallel turbo encoding; trellis termination; turbo codes; Degradation; Delay effects; Encoding; Error correction codes; Hardware; Iterative decoding; Performance loss; Propagation losses; Signal to noise ratio; Turbo codes;
Conference_Titel :
Parallel and Distributed Computing, Applications and Technologies, 2003. PDCAT'2003. Proceedings of the Fourth International Conference on
Print_ISBN :
0-7803-7840-7
DOI :
10.1109/PDCAT.2003.1236452