Detection Algorithm for Single-Carrier Spatial Modulation Signals in Frequency-Selective Fading Channels

Kuei Chiang Lai, Hung Yu Su, De Gang Peng, Shao Zhen He

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


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.

Original languageEnglish
Article number9201349
Pages (from-to)13341-13356
Number of pages16
JournalIEEE Transactions on Vehicular Technology
Issue number11
Publication statusPublished - 2020 Nov

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics


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