Title :
Exploiting Entire GSSK Antenna Combinations in MIMO Systems
Author :
Shih-Tang Su ; Wei-Ho Chung ; Chun-Feng Wu
Author_Institution :
Res. Center for Inf. Technol. Innovation, Taipei, Taiwan
Abstract :
We propose to improve the spatial efficiency and lower the symbol error rate (SER) of generalized space shift keying (GSSK) modulation through exploiting the entire antenna combinations. Conventional GSSK modulation bridges the binary sequence to the usually non-power-of-two antenna combinations through fixed one-on-one mapping which very often renders a great proportion of antenna combinations unused. In this paper, we design an unequal rate encoding (URE) scheme to exploit entire GSSK antenna combinations with different rate pre-mapping encoders to achieve the spatial efficiency. Without degrading transmission rates, an URE scheme improves SER with low decoding complexity in GSSK MIMO systems.
Keywords :
MIMO communication; antenna arrays; antenna radiation patterns; binary sequences; decoding; error statistics; modulation coding; GSSK MIMO system; GSSK antenna combinations; SER; URE scheme; binary sequence; fixed one-on-one mapping; generalized space shift keying modulation; low decoding complexity; multiple input multiple output technique; symbol error rate; unequal rate encoding scheme; Antennas; Complexity theory; Decoding; Encoding; GSM; MIMO; Modulation; GSSK; Generalized space shift keying; SSK; convolutional code; massive MIMO; modulation;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2403360
