Ergodic capacity analysis of spatially modulated systems

Hou, Yonghong and Wang, Pichao and Xiang, Wei and Zhao, Xiaoming and Hou, Chunping (2013) Ergodic capacity analysis of spatially modulated systems. China Communications , 10 (7). pp. 118-125. ISSN 1673-5447

Abstract

Spatial Modulation (SM) is a newly introduced wireless transmission scheme, and Space Shift Keying (SSK) is its simplified version. Their capacity performance has not been well examined to date. Starting from basic definitions of information theory, through theoretical analyses and numerical calculations, this paper evaluates the capacity of SM systems in various channels. Our conclusion is that under Rayleigh fading channels, the capacity of the SSK system is limited by the Signal-to-Noise Ratio (SNR) or the number of transmit antennas, whichever one is smaller. From the capacity point of view, the SM system is better than the Single-Input and Single-Output (SISO) system, but worse than the Multiple-Input and Single-Output (MISO) system. The correlation between transmit antennas will degrade the performance of the SSK system. Line-of-Sight (LOS) may cause performance degradation for SSK, but capacity increases for SM.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 IEEE. Published version deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 02 Sep 2013 23:40
Last Modified: 14 Oct 2014 02:22
Uncontrolled Keywords: wireless communications; spatial modulation; capacity; noise
Fields of Research : 09 Engineering > 0906 Electrical and Electronic Engineering > 090609 Signal Processing
10 Technology > 1005 Communications Technologies > 100501 Antennas and Propagation
10 Technology > 1005 Communications Technologies > 100510 Wireless Communications
Socio-Economic Objective: B Economic Development > 89 Information and Communication Services > 8901 Communication Networks and Services > 890105 Satellite Communication Networks and Services
Identification Number or DOI: 10.1109/CC.2013.6571295
URI: http://eprints.usq.edu.au/id/eprint/24004

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