Title :
The effect of a precoder on serially concatenated coding systems with ISI channel
Author_Institution :
Lucent Technol. Bell Labs., Murray Hill, NJ, USA
Abstract :
The performance of a serially concatenated system which includes a channel with memory precoded by a precoder as a rate one inner coder is presented. The effect of different precoders on the maximum likelihood bit error performance is analyzed. The precoder weight gain is identified through a union bound analysis. It is shown that the choice of precoders is critical for a given channel to achieve a good bit error rate performance. Several important design considerations for the choice of precoders are derived based on analysis and these are confirmed through simulations with iterative decoding algorithm
Keywords :
channel coding; concatenated codes; digital simulation; error statistics; intersymbol interference; iterative decoding; maximum likelihood estimation; turbo codes; BER performance; Euclidean distance analysis; ISI channel; inner coder rate; iterative decoding algorithm; maximum likelihood bit error performance; precoded memory; precoder weight gain; serially concatenated coding systems; simulations; turbo codes; union bound analysis; Algorithm design and analysis; Analytical models; Bit error rate; Concatenated codes; Intersymbol interference; Iterative algorithms; Iterative decoding; Maximum likelihood decoding; Performance gain; Turbo codes;
Conference_Titel :
Communications, 2000. ICC 2000. 2000 IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-6283-7
DOI :
10.1109/ICC.2000.853568
