Title :
Iterative decoding of concatenated Hadamard codes
Author :
Ping, Li ; Chan, Sammy
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
Abstract :
We investigate the decoding technique and performance of concatenated Hadamard codes. Efficient soft-in-soft-out decoding algorithms based on the fast Hadamard transform are developed. The performance required by CDMA mobile or PCS speech services, e.g., BER=10 -3, can be achieved at Eb/N0=0.5 dB using short interleaver length of 198 bits
Keywords :
Hadamard transforms; code division multiple access; concatenated codes; decoding; interleaved codes; iterative methods; BER; CDMA mobile services; PCS speech services; concatenated Hadamard codes; fast Hadamard transform; iterative decoding; short interleaver length; soft-in-soft-out decoding algorithms; Bit error rate; Concatenated codes; Error correction; Error correction codes; Interleaved codes; Iterative decoding; Multiaccess communication; Personal communication networks; Protection; Speech coding;
Conference_Titel :
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-4788-9
DOI :
10.1109/ICC.1998.682603
