Title :
Design of optimal lattice space-time codes
Author :
Prasad, N. ; Berenguer, I. ; Wang, X. ; Madihian, M.
Author_Institution :
NEC Labs America, Princeton, NJ
Abstract :
In this paper we propose a systematic procedure for designing optimal lattice (space-time) codes. By employing stochastic optimization techniques we design lattice codes with minimum error rates when lattice decoders are employed at the receiver. Our design methodology can be tailored to obtain optimal lattice (space-time) codes for any fading statistics and SNR of interest. Further, we obtain fundamental lower bounds on the error probabilities yielded by lattice decoders and characterize their asymptotic behavior
Keywords :
channel coding; decoding; error statistics; fading channels; optimisation; space-time codes; stochastic processes; SNR; error probabilities; fading statistics; lattice decoders; optimal lattice space-time codes; stochastic optimization techniques; Decoding; Design methodology; Design optimization; Error analysis; Error probability; Fading; Lattices; Space time codes; Statistics; Stochastic processes;
Conference_Titel :
Information Theory, 2006 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
1-4244-0505-X
Electronic_ISBN :
1-4244-0504-1
DOI :
10.1109/ISIT.2006.261577
