Ergodic capacity analysis of spatially modulated systems

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

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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.

Item ID: 52175
Item Type: Article (Research - C1)
ISSN: 1673-5447
Keywords: SSK; SM; channel capacity
Funders: National High-Tech R&D Program of China (NHTP), National Natural Science Foundation of China (NNSFC)
Projects and Grants: NHTP 863 Program 2011-AA010201, NNSFS grant no. 60972054
Date Deposited: 25 Jan 2018 04:11
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090609 Signal Processing @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified @ 100%
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