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Design of Low Complexity Polar Coded Spatial Modulation

Spatial Modulation has emerged as the new Multi Input Multi Output (MIMO) scheme offers better bandwidth efficiency. The specialty of Spatial Modulation is that only one antenna is active during a symbol period while the rest of the antennas are in idle mode. This feature eliminates the issues related to Inter Channel Interference (ICI) and Inter Antenna Synchronization (IAS). Several schemes have been developed and all are require an antenna index detection algorithm at the receiver. The key idea of this project is to solve the antenna detection problem and reduce the complexity of the receiver. Polar coded spatial modulation (PCSM) is proposed to provide both detection/decoding of the transmitted symbol and transmit antenna index in multiple-input-multiple-output (MIMO) antenna system. Polar coding, recently invented by Erdal Ar kan, is an encoding/decoding scheme that provably achieves the capacity of the class of symmetric binary memoryless channels. In polar coded system, free polar set is used for mapping transmitted information and frozen polar set for transmit antenna index. Consequently, the bit error rate performances of 8 phase shift keying modulation SM are analysed for various MIMO architecture and for low complexity results, ML detection are used at the receiver. This detection process is only for free polar set.