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ML Approaching MIMO Detection Based on Orthogonal Projection
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- Authors
- Seung Jae Bahng, Seok Joo Shin, Youn Ok Park
- Issue Date
- 2007-06
- Citation
- IEEE Communications Letters, v.11, no.6, pp.474-476
- ISSN
- 1089-7798
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- A detection algorithm for spatially multiplexed multiple input multiple output (MIMO) systems is proposed. The receiver first estimates the MIMO channel and rearranges the layers according to the measured SNRs. To determine the candidate vectors, an orthogonal projection combined with the M-algorithm is used. Without performing the exhaustive full search of the maximum likelihood (ML) method, the proposed algorithm can reach the performance which is closely akin to the ML method. The computational complexity markedly decreases: 0.66% over the ML method in terms of the number of real multiplications. © 2007 IEEE.
- KSP Keywords
- Computational complexity, Detection algorithm, Full search, M-algorithm, MIMO channel, MIMO detection, ML method, Multiple-input multiple-output (MIMO) systems, Orthogonal projection(QR), maximum likelihood