Abstract:
Adaptive modulation and coding (AMC) scheme suffers performance degradation with the signaling feedback delay, as channel state information (CSI) is outdated with time va...Show MoreMetadata
Abstract:
Adaptive modulation and coding (AMC) scheme suffers performance degradation with the signaling feedback delay, as channel state information (CSI) is outdated with time variant channel. In this paper, we propose a robust AMC scheme to mitigate the effect of signaling feedback delay, especially in vehicular environments. Channel information estimated in current time interval is utilized to obtain the distribution of channel fading in upcoming time interval. Average block error rate (BLER) for given modulation and coding scheme (MCS) is derived. Simulation results indicate that the proposed scheme guarantees reliable performance even in a vehicular environment with maximum Doppler frequency shift of 300 Hz.
Published in: 2009 IEEE International Conference on Communications
Date of Conference: 14-18 June 2009
Date Added to IEEE Xplore: 11 August 2009
CD:978-1-4244-3435-0