TY - JOUR
T1 - Detection Algorithm for Single-Carrier Spatial Modulation Signals in Frequency-Selective Fading Channels
AU - Lai, Kuei Chiang
AU - Su, Hung Yu
AU - Peng, De Gang
AU - He, Shao Zhen
N1 - Funding Information:
Manuscript received June 13, 2020; revised August 21, 2020; accepted August 25, 2020. Date of publication September 21, 2020; date of current version November 12, 2020. This work was supported by the Ministry of Science and Technology, Taiwan, R.O.C., under Contracts MOST 108-2218-E-006-042, MOST 108-2221-E-006-049, and MOST 109-2221-E-006-184. The review of this article was coordinated by Prof. Shu-Hung Leung. (Corresponding author: Kuei-Chiang Lai.) Kuei-Chiang Lai is with the Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan (e-mail: kclai@mail.ncku.edu.tw).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2020/11
Y1 - 2020/11
N2 - In this paper, we address the problem of detector design in the frequency-selective fading channels for unique-word-based single-carrier spatial modulation (UWSC-SM) systems. We propose to precede the conventional M-algorithm with an appropriately designed frequency-domain prefilter to condition the equivalent channel so that the number of the survivor paths needed for a satisfactory performance can be significantly reduced. By exploiting the block circulant channel induced by the UWSC-SM block format, the prefilter can be computed, and carried out efficiently using the fast Fourier transforms. Simulation results demonstrate that, compared to the conventional M-algorithm, the proposed algorithm achieves essentially the same error-rate performance with a considerably lower overall complexity in systems where the number of receive antennas is no smaller than that of transmit antennas.
AB - In this paper, we address the problem of detector design in the frequency-selective fading channels for unique-word-based single-carrier spatial modulation (UWSC-SM) systems. We propose to precede the conventional M-algorithm with an appropriately designed frequency-domain prefilter to condition the equivalent channel so that the number of the survivor paths needed for a satisfactory performance can be significantly reduced. By exploiting the block circulant channel induced by the UWSC-SM block format, the prefilter can be computed, and carried out efficiently using the fast Fourier transforms. Simulation results demonstrate that, compared to the conventional M-algorithm, the proposed algorithm achieves essentially the same error-rate performance with a considerably lower overall complexity in systems where the number of receive antennas is no smaller than that of transmit antennas.
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U2 - 10.1109/TVT.2020.3025347
DO - 10.1109/TVT.2020.3025347
M3 - Article
AN - SCOPUS:85096336242
VL - 69
SP - 13341
EP - 13356
JO - IEEE Transactions on Vehicular Communications
JF - IEEE Transactions on Vehicular Communications
SN - 0018-9545
IS - 11
M1 - 9201349
ER -