tailieunhanh - Báo cáo hóa học: " Parallel and Serial Concatenated Single Parity Check Product Codes"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Parallel and Serial Concatenated Single Parity Check Product Codes | EURASIP Journal on Applied Signal Processing 2005 6 775-783 2005 Hindawi Publishing Corporation Parallel and Serial Concatenated Single Parity Check Product Codes David M. Rankin Department of Electrical and Computer Engineering University of Canterbury Private Bag 4800 Christchurch New Zealand Email dave_rankin@ T. Aaron Gulliver Department of Electrical and Computer Engineering University of Victoria . Box 3055 STN CSC Victoria BC Canada V8W 3P6 Email agullive@ Desmond P. Taylor Department of Electrical and Computer Engineering University of Canterbury Private Bag 4800 Christchurch New Zealand Email taylor@ Received 12 June 2003 Revised 9 April 2004 The parallel and serial concatenation of codes is well established as a practical means of achieving excellent performance. In this paper we introduce the parallel and serial concatenation of single parity check SPC product codes. The weight distribution of these codes is analyzed and the performance is bounded. Simulation results confirm these bounds at high signal-to-noise ratios. The performance of these codes and some variants is shown to be quite good given the low decoding complexity and reasonably short blocklengths. Keywords and phrases parallel and serial concatenation single parity check product codes. 1. INTRODUCTION The parallel and serial concatenation of codes is well established as a practical means of achieving excellent performance. Interest in code concatenation has been renewed with the introduction of turbo codes 1 otherwise known as parallel concatenated convolutional codes PCCCs 2 and the closely related serially concatenated convolutional codes SCCCs 3 . In this paper we introduce the parallel and serial concatenation of single parity check SPC product codes. These codes perform well and yet have a low overall decoding complexity. Similar work involving parallel concatenation of SPC codes not SPC product codes has been considered in 4 while serially .