A Low-Complexity Method for Antenna Selection in Spatial Modulation Systems

Abstract

International audienceIn this Letter, a low-complexity Euclidean distance-based method for antenna subset selection in Spatial Modulation systems is presented. The proposed method avoids the high complexity of both the optimal exhaustive search and of a recently proposed Euclidean distance-based algorithm for performing the selection. Moreover, as the number of receive antennas increases and for practical signal-to-noise ratio (SNR) values, it offers better error performance than the conventional transmit antenna selection (TAS) algorithm. In addition, the benefits of the proposed selection scheme, as the number of receive antennas increases, are further substantiated by comparing its relative energy gain over the TAS method for a target uncoded Symbol Error Rate (SER

Single-Carrier SM-MIMO: A Promising Design for Broadband Large-Scale Antenna Systems

“…The first conference paper 65 on single-RF based SM was published in 2006 [23], but its 66 extensive research was mainly fueled by the pioneering works 67 of Haas et al [16]- [18], Mesleh et al [16], [24], [25], followed 68 based SM (OFDM-SM) schemes [60] and the related variants 126 may not be suitable for the family LS-MIMO. In recent years, the family of single-carrier (SC) or SC- 128 like transmissions has become an interesting and promising 129 alternative for LS-MIMO, which can reduce the complexity 130 imposed by the DFT and has a lower PAPR than OFDM [61]- 131 [64]. Moreover, as shown in [10], [65], the frequency-selective 132 channel may be converted into a frequency-flat channel in 133 LS-MIMO by carefully designed receive filters and therefore 134 SC-based scheme can be directly used.…”

Cross-Entropy-Based Antenna Selection for Spatial Modulation

“…Based on the equivalent decision metric D(I), some low-ED-CC schemes were also proposed in [14], [15]. Note that the schemes in [12]- [15] find the optimal TA subset satisfying (4), which has to tentatively invoke all possible candidates in T. As a result, this exhaustive search has a potentially prohibitive ED-SC.…”

“…In [14], a simplified EDAS scheme was proposed by utilizing the rotational symmetry of the signal constellations. In [15] and [16], suboptimal EDAS schemes were proposed by optimizing the minimum squared EDs to further reduce ED-CC.…”

Enhanced Transmit-Antenna Selection Schemes for Multiuser Massive MIMO Systems

“…To alleviate these problems, an antenna selection method has been studied [6], which can implement fewer RF stages than the number of available transmit antennas by selecting the specific transmit antennas to be used with the (reduced number of) RF stages. The typical transmission antenna selection scheme proceeds by exhaustive search, selecting the best possible subset (combination) of the full set of antennas [7]. Even though the performance of this exhaustive search can be optimized, its complexity still increases linearly with the total number of antennas and the number of antennas to be selected.…”