Downlink Multi-User Massive MIMO Transmission Using Receive Spatial Modulation
| Autor: | Ahmed Raafat, Adrian Agustin, Josep Vidal |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
Applied Mathematics Spatial modulation Millimeter-wave (mmWave) 020206 networking & telecommunications 02 engineering and technology Spectral efficiency Transmitter power output Multi-user Enginyeria de la telecomunicació::Processament del senyal [Àrees temàtiques de la UPC] MIMO systems Computer Science Applications Transmission (telecommunications) Modulation Telecommunications link 0202 electrical engineering electronic engineering information engineering Electronic engineering Sistemes MIMO Electrical and Electronic Engineering Transceiver Antenna selection Massive multiple-inputmultiple-output (MIMO) Computer Science::Information Theory |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 1558-2248 1536-1276 |
| DOI: | 10.1109/twc.2020.3006565 |
| Popis: | In this paper, we consider the downlink of a multi-user multiple-input-multiple-output system operating at the millimeter wave band in an outdoor environment. In this band, receive spatial modulation (RSM) schemes have been shown to achieve good spectral efficiency-energy consumption trade-off for the single-user case by exploiting new transceiver architectures that use a single radio-frequency (RF) chain at the user terminal (UT). In this work, we propose a novel RSM scheme for multiple RF chains at the UT. With the goal of maximizing the spectral efficiency (SE), we consider analog switches at the UT that select which antennas are active. To minimize the power consumption at the BS, we include analog switches that control the ON/OFF status of RF chains such that the SE is higher than a given threshold. Moreover, we extend the RSM concept to multiple users transmission. Specifically, we propose an algorithm that jointly optimizes the number of users, set of antennas and transmit power allocated to each user to maximize the sum SE. Simulation results show that RSM outperforms conventional modulation (no spatial symbols are transmitted) in terms of spectral and energy efficiency. Moreover, the proposed algorithms tightly approach the exhaustive search and outperform the prior art in terms of performance and convergence. This work was supported in part by the European Union’s Horizon 2020 Research and Innovation Programme through the Marie Sklodowzka-Curie under Grant 641985, in part by the Project 5G&B RUNNER-UPC (AEI/FEDER, UE) under Grant TEC2016-77148-C2-1-R, and in part by the Catalan Government under Grant 2017 SGR 578-AGAUR. |
| Databáze: | OpenAIRE |
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