Title :
Differential Spatial Modulation for APSK in Time-Varying Fading Channels
Author :
Martin, Philippa A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Canterbury, Christchurch, New Zealand
Abstract :
We develop a novel differential spatial modulation (DSM) scheme for amplitude phase shift keying (APSK) modulation, which can either improve throughput or performance over DSM for PSK. Then we investigate the impact of time-varying fading on DSM. We find performance degrades if the fading is too fast due to differential detection. The impact of a long outer error control code (ECC) is also considered. Its performance is limited by the slowly varying channel required for differential detection. We consider using reconfigurable antennas to periodically change the channel conditions and hence significantly improve coded performance for DSM systems.
Keywords :
amplitude shift keying; differential detection; fading channels; phase shift keying; APSK modulation; DSM systems; ECC; amplitude phase shift keying modulation; differential detection; long outer error control code; novel differential spatial modulation scheme; reconfigurable antennas; time-varying fading channels; Bit error rate; Fading; Modulation; Parity check codes; Throughput; Transmitting antennas; APSK; LDPC code; Spatial modulation; differential modulation; fading channel; reconfigurable antennas;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2426172
