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Enhanced Codebook Index Search Scheme for Quantized Equal Gain Transmission over LTE Down Link Systems  

Park, Noe-Yoon (School of Information and Communication Engineering, Chungbuk National University)
Li, Xun (School of Information and Communication Engineering, Chungbuk National University)
Kim, Young-Ju (School of Information and Communication Engineering, Chungbuk National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.48, no.1, 2011 , pp. 62-69 More about this Journal
Abstract
A novel QEGT codebook index searching algorithm for long tenn evolution (LTE) system is proposed. The proposed algorithm divides the Q precoding vectors into M groups, and selects the optimal precoding vector from the selected group at the receiver. This algorithm reduced the calculation for searching the optimal precoding vector index compared to the previous algorithms. The index searching algorithm is implemented for TI's TMS320C6713 DSP board. When the number of transmit antenna is 4, the number of clock cycles is reduced to 25%.
Keywords
MIMO-OFDM; Precoding; Codebook; QEGT; LTE;
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Times Cited By KSCI : 1  (Citation Analysis)
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