MIMO-OFDM Optimal Decoding and Achievable Information Rates Under Imperfect Channel Estimation

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

Optimal decoding of bit interleaved coded modulation (BICM) MIMO-OFDM where an imperfect channel estimate is available at the receiver is investigated. First, by using a Bayesian approach involving the channel a posteriori density, we derive a practical decoding metric for general memoryless channels that is robust to the presence of channel estimation errors. Then, we evaluate the outage rates achieved by a decoder that uses our proposed metric. The performance of the proposed decoder is compared to the classical mismatched decoder and a theoretical decoder defined as the best decoder in the presence of imperfect channel estimation. Numerical results over Rayleigh block fading MIMO-OFDM channels show that the proposed decoder outperforms mismatched decoding in terms of bit error rate and outage capacity without introducing any additional complexity.

Keywords

Networking and Internet Architecture

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/135867

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0708.1416
 http://arxiv.org/abs/0708.1416
 Dans The VIII IEEE Workshop on Signal Processing Advances in Wireless Communications - The VIII IEEE Workshop on Signal Processing Advances in Wireless Communications, Finlande (2007)

Collections

arXiv