An improved frequency domain turbo equalizer for single-carrier spatial modulation systems
Zhao, Yan, Yang, Ping, Xiao, Yue, Xiao, Lixia, Dong, Binhong, and Xiang, Wei (2017) An improved frequency domain turbo equalizer for single-carrier spatial modulation systems. IEEE Transactions on Vehicular Technology, 66 (8). pp. 7568-7572.
PDF (Published Version)
- Published Version
Restricted to Repository staff only |
Abstract
In this paper, a new time-domain soft-decision feedback (TDSDF) aided frequency domain turbo equalizer (FDTE) is proposed for broadband single-carrier (SC) spatial modulation (SM) systems. Specifically, the proposed equalizer operates on a frame-by-frame basis and is designed based on the minimum block-averaged mean-square error (MBMSE) criterion. To tackle the error propagation problem, a metric in consideration of the reliability of the feedback information is considered. The optimal coefficients of the forward and feedback filters involved in the TDSDF-FDTE design are derived analytically. Simulation results show that the proposed nonlinear TDSDF-FDTE detector is capable of offering a better tradeoff between the bit-error-rate (BER) performance and the imposed computational complexity than the conventional linear frequency domain turbo demapper (FDTD) conceived for SC-SM systems. Furthermore, a 4 dB improvement is observed for the unbalanced channel.
Item ID: | 54062 |
---|---|
Item Type: | Article (Research - C1) |
ISSN: | 1939-9359 |
Keywords: | Decision Feedback Equalizer (DFE); Frequency Domain Turbo Equalizer (FDTE); Multiple-Input Multiple-Output (MIMO); Single-Carrier (SC); Spatial Modulation (SM) |
Date Deposited: | 14 Jun 2018 01:25 |
FoR Codes: | 40 ENGINEERING > 4006 Communications engineering > 400601 Antennas and propagation @ 100% |
SEO Codes: | 86 MANUFACTURING > 8617 Communication Equipment > 861701 Network Infrastructure Equipment @ 100% |
Downloads: |
Total: 1 |
More Statistics |