Adaptive detection scheme in accordance with channel condition for MIMO-OFDM system
Pages 174 - 177
Abstract
This paper proposes a MIMO detection scheme reducing the computational complexity and providing comparable performance to the QRD-M detection scheme for MIMO-OFDM systems. The proposed scheme checks the channel condition per subcarrier and then selects detection scheme either ordered DFE scheme or adaptive QRD-M detection scheme according to that information. The post-detection SNR, which judges channel condition, depends on Moore-Penrose pseudo-inverse matrix G. The proposed scheme selects the ordered DFE detection scheme in case of good channel condition and the adaptive QRD-M detection scheme in case of bad channel condition. The adaptive QRD-M detection scheme selects the number of survival symbols M in accordance with the channel condition at the each layer. Compared with the QRD-M (M=16) detection scheme, the proposed detection scheme reduces the computational complexity about 67 percents and achieves similar performance.
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Index Terms
- Adaptive detection scheme in accordance with channel condition for MIMO-OFDM system
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October 2008
192 pages
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Published: 30 October 2008
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MSWiM '08: The 11th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems
October 30 - 31, 2008
British Columbia, Vancouver, Canada
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Overall Acceptance Rate 83 of 272 submissions, 31%
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