Low-Complexity MIMO Detectors for High-Rate Spatial Multiplexing Aided Generalized Spatial Modulation

• Main Authors: Yao-hsien Peng, 彭耀賢
• Other Authors: Chih-Peng Li
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/a334q5

碩士 === 國立中山大學 === 通訊工程研究所 === 106 === Spatial-Multiplexing aided Generalized Spatial Modulation (SMx-GSM) is essentially a combination of Vertical Bell Labs Layered Space-Time and Generalized Spatial Modulation (GSM) to achieve a high transmission rate technology. In transmitter, the transmit antennas are divided into several groups and each group use GSM technique. Therefore, we don’t need a lot of Radio Frequency chain to transmit signal and will not cause serious inter-channel interference. Compare to the conventional GSM, we can implement high transmission rate system by using the characteristics of SMx-GSM symbols at receiver. In this thesis, we explain a low-complexity detector for SMx-GSM. We use tree search algorithm and utilize a low-complexity cost function to find a set of transmit antenna combinations with maximum a posteriori probability for optimal detection. From the results of the simulation, the detection complexity can be greatly reduced, that make high-rate system feasible.