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학술대회 A Low Complex Joint QR based Partial ML Detection and Spatial Interference Cancellation Scheme for Coded Double STBC-OFDM System
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윤찬호, 이제헌, 이석규
International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2008, pp.1-5
In this paper, we propose a low complexity MIMO detection method for double space-time block (D-STBC) coded OFDM system. The proposed MIMO detector involves two step decoding process to efficiently de-correlate spatially-multiplexed/space-time-coded signals. The proposed MIMO detector collects feedback information from interfering spatial domain. Then, interference cancellation is applied once to reduce latency. A unique QR decomposition with partial maximum likelihood detection scheme is developed to lower computational complexity while performance is significantly improved. From computer simulation results, our scheme in D-STBC OFDM system outperforms previously proposed iterative detectors based on turbo equalization principle. © 2008 IEEE.
KSP 제안 키워드
Coded OFDM System(C-OFDM), Computer simulation(MC and MD), D-STBC, Detection Method, Detection scheme, Feedback information, Interference cancellation, Iterative detectors, Low Complexity MIMO detection, Lower computational complexity, MIMO detector