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Linear Dispersion Codes with Limited Feedback Dan DENG Jin-kang ZHU Ling QIU Publication IEICE TRANSACTIONS on Communications Vol.E90-B No.7 pp.1876-1879 Publication Date: 2007/07/01 Online ISSN: 1745-1345 DOI: 10.1093/ietcom/e90-b.7.1876 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: MIMO, space-time codes, linear dispersion codes (LDCs), limited feedback, Rayleigh channels, Full Text: PDF(185.2KB)>>
Summary: LDCs system with finite-rate error-free feedback is proposed in this letter. The optimal transmission codeword is selected at the receiver and the codeword index is sent to the transmitter. A simple random search algorithm is introduced for codebook generation. Moreover, the max-min singular value criterion is adopted for codeword selection. Simulation results showed that, with only 3-4 feedback bits, the low-complexity Zero-Forcing receiver can approach the Maximum-Likelihood (ML) performance. | |||||
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