Capacity-Based Relay-and-Antenna Joint Selection Schemes for Two-Way AF-MIMO Multiple-Relay Systems in Correlated Channels

• Main Authors: Kang-Tsao Tang, 湯剛造
• Other Authors: Chia-Chang Hu
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/29e6pd

碩士 === 國立中正大學 === 通訊工程研究所 === 102 === The relay and antenna joint selection algorithms are proposed for the two-way amplify-and-forward (AF) multiple-input multiple-output (MIMO) multiple-relay systems in the thesis. Based on the maximization of system sum-rate capacity, both the layered distributed orthogonal relay selection (LDORS) and the singular value decomposition (SVD) based selection strategies are investigated. The LDORS scheme operates in a layered selection manner to sieve out the antenna pairs on relays by making full use of the Gram-Schmidt (GS) orthogonalization procedure and the DORS algorithm. In addition, the 2-stage SVD-based antenna selection algorithm is proposed to alleviate the complexity cost incurred by the SVD-based exhaustive search method. Finally, simulation results demonstrate that the proposed relay-and-antenna selection techniques are capable of providing the superior sum-rate performance for the two-way AF-MIMO multiple-relay systems.