Title :
Antenna Selection in Spatial Modulation Systems
Author :
Rajashekar, R. ; Hari, K.V.S. ; Hanzo, Lajos
Author_Institution :
Dept. of Electr. Commun. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
Novel transmit antenna selection techniques are conceived for Spatial Modulation (SM) systems and their symbol error rate (SER) performance is investigated. Specifically, low-complexity Euclidean Distance optimized Antenna Selection (EDAS) and Capacity Optimized Antenna Selection (COAS) are studied. It is observed that the COAS scheme gives a better SER performance than the EDAS scheme. We show that the proposed antenna selection based SM systems are capable of attaining a significant gain in signal-to-noise ratio (SNR) compared to conventional SM systems, and also outperform the conventional MIMO systems employing antenna selection at both low and medium SNRs.
Keywords :
MIMO communication; antenna arrays; error statistics; modulation; transmitting antennas; COAS scheme; MIMO systems; SER performance; SM systems; SNR; capacity optimized antenna selection; low-complexity EDAS; low-complexity Euclidean distance optimized antenna selection; signal-to-noise ratio; spatial modulation systems; symbol error rate performance; transmit antenna selection techniques; Complexity theory; Indexes; MIMO; Modulation; Signal to noise ratio; Transmitting antennas; Spatial modulation; antenna selection; capacity; diversity; limited feedback;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.012213.122650
