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Line-of-Sight Spatial Modulation for Indoor mmWave Communication at 60 GHz

Abstract : In this paper, we propose to use spatial modulation (SM) and the generalized spatial modulation (GSM) MIMO schemes in indoor line-of-sight (LOS) millimeter-wave (mmWave) communication at 60GHz. SM/GSM are known but only at low-GHz frequencies where the channels are typically rich scattered and characterized by Rayleigh or Rician distribution. However, 60-GHz indoor channels are typically not rich but rather sparsely scattered and dominated by the LOS component, thus making them different from low-GHz fading channels and our work novel. We first seek to optimize SM in LOS by finding the channel conditions that minimize its symbol error probability (SEP). Then, we extend our studies to LOS GSM and derive its channel capacity and SEP. Furthermore, we present numerical studies on the behavior and performance of SM/GSM in LOS. LOS spatial multiplexing and beamforming MIMO schemes are used as benchmarks for comparison. At last, we propose novel TX and RX hardware architectures, both of which use only a single RF chain, for implementation of SM/GSM at mmWave frequencies. Both simplicity and good performance are exhibited by LOS SM/GSM thus making them very attractive techniques for short-range indoor mmWave communications at 60GHz.
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Submitted on : Tuesday, July 7, 2020 - 5:13:51 PM
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Peng Liu, Marco Di Renzo, Andreas Springer. Line-of-Sight Spatial Modulation for Indoor mmWave Communication at 60 GHz. IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2016, 15 (11), pp.7373 - 7389. ⟨10.1109/TWC.2016.2601616⟩. ⟨hal-01880139⟩



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