Constellation Design for Quadrature Spatial Modulation

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Zhao, Wen^1 ; Liu, Panmei^1 ; Huang, Fuchun^2

Dept. Computer, College of Guangdong Peizheng, Guangzhou, China^1

Dept. ComputerSouth China, Institute of Software Engineer GU, Guangzhou, China^2

关键词: Average bit error probability;    Bit error ratio (BER);    Communication techniques;    Constellation design;    Minimum euclidean distances;    Next generation wireless systems;    Signal constellation;    Spatial modulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/5/052097/pdf
DOI  :  10.1088/1755-1315/252/5/052097

来源: IOP

【 摘 要 】

Quadrature space modulation (QSM) was proposed recently as a viable multiple-input multiple-output (MIMO) communication technique for next generation wireless system. QSM achieves the more spatial gain than spatial modulation (SM) due to transmitting more additional information bits by the freedom of transmit antennas. In this paper, without increasing the complexity of detection at the receiver, an improved M-ary quadrature amplititude modulation (I-MQAM) signal constellation for the QSM system is proposed to further increasd the squared Minimum Euclidean distance (MED) between the transmitted spatial vectors (TSVs). Then an upper bound on the average bit error probability (ABEP) is elaborately analyzed. Simulation results using Monte Carlo demonstrate that the QSM system with the proposed I-MQAM has better bit error ratio (BER) performance than the QSM system with M-QAM/PSK in wireless network.