Title :
Initial performance evaluation of spatial modulation OFDM in LTE-based systems
Author :
Yang, Ping ; Xiao, Yue ; Zhou, Bin ; Li, Shaoqian
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, we explore the spatial modulation (SM) orthogonal frequency division multiplexing (SM-OFDM) transmission to achieve good performance in Long Term Evolution (LTE) based systems. For assessment purposes, the performance results of SM-OFDM systems are compared with the popular Alamouti-coded OFDM systems and vertical Bell Labs layered space-time (V-BLAST) OFDM systems. Simulation results show that SM-OFDM systems achieve better performance than other systems at low spectral efficiencies. However, at high spectral efficiencies, the performance of SM depends on a trade-off between the spatial constellation size and signal constellation size. Furthermore, the results also show that SM provides a flexible transceiver configuration, especially for an unbalanced multiple-input multiple-output (MIMO) channel.
Keywords :
Long Term Evolution; MIMO communication; OFDM modulation; modulation coding; signal detection; Alamouti-coded OFDM systems; LTE-based systems; Long Term Evolution; MIMO channel; OFDM spatial modulation system; flexible transceiver configuration; orthogonal frequency division multiplexing; signal constellation size; spatial constellation size; unbalanced multiple-input multiple-output channel; vertical Bell Labs layered space-time OFDM systems; MIMO; Modulation; OFDM; Receiving antennas; Signal to noise ratio; Transmitting antennas;
Conference_Titel :
Communications and Networking in China (CHINACOM), 2011 6th International ICST Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-0100-9
DOI :
10.1109/ChinaCom.2011.6158128
