Generalized Beamspace Modulation Using Multiplexing: A Breakthrough in mmWave MIMO
Shuaishuai Guo, Haixia Zhang, Peng Zhang, Pengjie Zhao, Leiyu Wang,, and Mohamed-Slim Alouini

TL;DR
This paper introduces GBMM, a novel transmission scheme for mmWave MIMO that surpasses traditional spectral efficiency bounds by leveraging spatial modulation and optimized precoding, demonstrating superior performance over existing methods.
Contribution
The paper proposes GBMM, a new scheme that exceeds the spectral efficiency bounds of traditional beamspace MIMO, with optimized precoding and hybrid receiver design for mmWave communications.
Findings
GBMM outperforms BBS in spectral efficiency.
The proposed algorithms optimize precoder activation and power allocation.
GBMM can be implemented with minimal RF chains for improved efficiency.
Abstract
Spatial multiplexing (SMX) multiple-input multiple-output (MIMO) over the best beamspace was considered as the best solution for millimeter wave (mmWave) communications regarding spectral efficiency (SE), referred as the best beamspace selection (BBS) solution. The equivalent MIMO water-filling (WF-MIMO) channel capacity was treated as an unsurpassed SE upper bound. Recently, researchers have proposed various schemes trying to approach the benchmark and the performance bound. But, are they the real limit of mmWave MIMO systems with reduced radio-frequency (RF) chains? In this paper, we challenge the benchmark and the corresponding bound by proposing a better transmission scheme that achieves higher SE, namely the Generalized Beamspace Modulation using Multiplexing (GBMM). Inspired by the concept of spatial modulation, besides the selected beamspace, the selection operation is used to…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsMillimeter-Wave Propagation and Modeling · Advanced MIMO Systems Optimization · Advanced Wireless Communication Technologies
