Research Article
Asymptotic Diversity Order of Single Carrier Cyclic Prefix Systems with Frequency Domain Decision Feedback Equalizers
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158213, author={Hui-Ming Wang and Qinye Yin}, title={Asymptotic Diversity Order of Single Carrier Cyclic Prefix Systems with Frequency Domain Decision Feedback Equalizers}, proceedings={6th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={3}, keywords={single carrier cyclic prefix system frequency domain equalization decision feedback equalizer outage probability diversity}, doi={10.1109/ChinaCom.2011.6158213} }- Hui-Ming Wang
Qinye Yin
Year: 2012
Asymptotic Diversity Order of Single Carrier Cyclic Prefix Systems with Frequency Domain Decision Feedback Equalizers
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158213
Abstract
Single carrier cyclic prefix system with frequency domain equalization (SC-CP-FDE) is an attractive technology for broadband wireless communications. In this paper, we investigate the outage probability and diversity order of an uncoded SCCP system with frequency domain MMSE decision feedback equalizer (FD-DFE) in frequency-selective channels. Based on the linear prediction theory and spectral factorization theory, we give a different derivation and interpretation of the equalizer coefficients and the closed-form MMSE formula at the decision point of the equalizer, from which the asymptotic SINR is obtained when the block length N is sufficiently large compared to the channel length. Adopting outage analysis, we show that with MMSE-FD-DFE, the asymptotic achievable diversity order is Lc+1, where Lc is the number of independent channel paths, i.e., full multipath diversity is asymptotically achieved.