Title: Adaptive Turbo-Coded Hybrid-ARQ in OFDM Systems over Gaussian and Fading Channels
Authors: Kingsley Oteng-Amoako, Saeid Nooshabadi
Abstract: In this paper, an analytical approach for spectral efficiency maximization of coded wideband transmissions is presented. Type-III Hybrid-ARQ is exploited, enabling all sub-carriers to be employed in codeword transmission regardless of sub-carrier conditions. The effects of imperfect sub-channel estimation are characterized and compensated for during code rate and signal constellation optimization. Index Terms - Hybrid-ARQ, AMC, adaptive, fading, diversity combining and turbo codes.