Performance analysis for the N-continuous precoded SM-OFDM system

Xiao, Yue, Yu, Feng, Lei, Xia, He, Dongxiao, Yang, Ping, and Xiang, Wei (2018) Performance analysis for the N-continuous precoded SM-OFDM system. IEEE Transactions on Vehicular Technology, 67 (1). pp. 483-493.

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Abstract

Combined with N-continuous (NC) precoding, the spatial modulation (SM) orthogonal frequency division multiplexing (OFDM) system offers considerable sidelobe suppression for the downlink transmission, at the cost of additional interference to the transmit signal. Therefore, this paper focuses on investigating the impact of the NC precoder on the bit error rate (BER) performance of the SM-OFDM system. The BER performance is analyzed over the frequency-selective Rayleigh fading channel under two distinct scenarios, i.e., perfect channel estimation and interference suppression based minimum mean square error (MMSE) channel estimation. First, we propose an approximate system model for the NC precoded SM-OFDM system along with an analysis on the introduced interference, and then derive the average BER performance of the system with perfect channel estimation. Based on the above proposed approximate system model, we further analyze the interference based upon MMSE channel estimation, and investigate the characteristics of channel estimation errors. Furthermore, we derive the average BER performance of the NC precoded SM-OFDM system with imperfect channel estimation. The numerical results show that the analytical BER closely matches its simulated counterpart under different system configurations, and demonstrate that the proposed approximate system model is in good agreement with the precise one.

Item ID: 52097
Item Type: Article (Research - C1)
ISSN: 1939-9359
Related URLs:
Funders: National Natural Science Foundation of China (NNSFC), Open Research Fund of National Mobile Communications Research Laboratory, Southeast University (SEU), Foundation Project of Science and Technology on Electronic Information Control Laboratory (FPSTEICL)
Projects and Grants: NNSFC grant no. 61471090, NNSFC grant no. 61671131, SEU grant no., FPSTEICL Grant JS17041403811
Date Deposited: 25 Jan 2018 00:32
FoR Codes: 10 TECHNOLOGY > 1005 Communications Technologies > 100510 Wireless Communications @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890104 Mobile Telephone Networks and Services @ 100%
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