Title :
Performance Analysis of Differential Spatial Modulation with Two Transmit Antennas
Author :
Miaowen Wen ; Zhiguo Ding ; Xiang Cheng ; Yuyang Bian ; Poor, H. Vincent ; Bingli Jiao
Author_Institution :
State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Peking Univ., Beijing, China
Abstract :
Differential spatial modulation (DSM) is favorable in practice since it can offer a better tradeoff between reception reliability and system complexity in comparison with coherent spatial modulation (SM). In this letter, the bit error probability (BEP) performance of a point-to-point communication system, in which DSM is adopted at a transmitter equipped with two antennas, is analyzed. A general expression for an upper bound on the average BEP (ABEP) achieved by the system under Rayleigh fading channels is derived. Moreover, a closed-form ABEP and an asymptotic analysis are provided for BPSK signaling. The derived analytical results verify that DSM leads to a less than 3dB signal-to-noise power ratio penalty with respect to coherent SM while maintaining the same data rate of 2bit/s/Hz.
Keywords :
Rayleigh channels; error statistics; phase shift keying; transmitting antennas; BEP performance; BPSK signaling; DSM; Rayleigh fading channels; asymptotic analysis; bit error probability; closed-form ABEP; coherent spatial modulation; differential spatial modulation; performance analysis; point-to-point communication system; reception reliability; system complexity; transmit antennas; Binary phase shift keying; Performance analysis; Receiving antennas; Signal to noise ratio; Transmitting antennas; Upper bound; Spatial modulation (SM); asymptotic analysis; bit error probability; differential modulation;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2014.012014.132524
