Power allocation-aided enhanced SM-OFDM: closed-form solutions and experimental results

Power allocation-aided enhanced SM-OFDM: closed-form solutions and experimental results

This paper aims to improve the error rate performance of the enhanced spatial modulation based orthogonal frequency division multiplexing (ESM-OFDM) system by jointly optimizing the signal constellation and the antenna power allocation (PA). We derive a closed-form expression for the optimal PA of t...

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Bibliographic Details
Main Authors: Jiang, Ke, Yang, Ping, Xiao, Yue, Liu, Zilong, Guan, Yong Liang, Di Renzo, Marco
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2022
Subjects:
Engineering::Electrical and electronic engineering
Enhanced Spatial Modulation
Power Allocation
Online Access:https://hdl.handle.net/10356/163830
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Institution: Nanyang Technological University
Language: English
Description
Summary:This paper aims to improve the error rate performance of the enhanced spatial modulation based orthogonal frequency division multiplexing (ESM-OFDM) system by jointly optimizing the signal constellation and the antenna power allocation (PA). We derive a closed-form expression for the optimal PA of the ESM-OFDM scheme for some practical antenna setups and then implement and verify the system by using an Universal Software Radio Peripheral (USRP) platform. Monte Carlo simulations and experimental results show the superiority of the derived optimal PA over the equal-gain case.

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