Title :
Optimal Rate-Diversity-Delay Tradeoff in ARQ Block-Fading Channels
Author :
Chuang, Allen ; Fàbregas, Albert Guillén I ; Rasmussen, Lars K. ; Collings, Iain B.
Author_Institution :
Sch. of Electr. & Inf. Eng., Sydney Univ., NSW
Abstract :
We consider coded modulation schemes for the automatic-repeat-request (ARQ) block-fading channel. We show that the optimal SNR exponents of these schemes are given by a modified form of the Singleton bound that includes the effects of code rate and maximum ARQ delay. The role of maximum distance separable (MDS) codes over the ARQ block-fading channel is investigated and simulation results are presented, demonstrating that practical MDS codes achieve the optimal SNR exponent dictated by the Singleton bound
Keywords :
automatic repeat request; channel coding; fading channels; modulation coding; ARQ block-fading channels; Singleton bound; automatic-repeat-request block-fading channel; coded modulation schemes; maximum ARQ delay; maximum distance separable codes; optimal SNR exponents; optimal rate-diversity-delay tradeoff; Australia; Automatic repeat request; Coherence; Conferences; Fading; Information theory; Lakes; Linear matrix inequalities; OFDM; Throughput;
Conference_Titel :
Information Theory Workshop, 2006. ITW '06 Chengdu. IEEE
Conference_Location :
Chengdu
Print_ISBN :
1-4244-0067-8
Electronic_ISBN :
1-4244-0068-6
DOI :
10.1109/ITW2.2006.323685
