Electromagnetic emission-aware resource allocation for the uplink of OFDM wireless communication systems

2015 International Symposium on Wireless Communication Systems (ISWCS) Pub Date : 2015-08-01 DOI:10.1109/ISWCS.2015.7454381

Y. Sambo, Mohammed Al-Imari, F. Héliot, M. Imran

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引用次数: 3

Abstract

With wireless communications increasingly becoming popular and convergent, service providers have to continuously upgrade their networks in order to support the increasing demand for bandwidth. However, given that wireless communication systems operate on radiofrequency waves, the health effects of electromagnetic (EM) emission from these systems are increasingly becoming a concern due to the ubiquity of mobile communication devices. In order to address these concerns, we propose in this paper, an EM emission reduction scheme for the uplink of OFDM wireless systems. We formulate the EM reduction scheme as a convex optimization problem and solve it by allocating bits to users on their respective subcarriers. This is based on the assumption that the network can predict the channel state information of all the users for a given transmission window. Simulation results show that our proposed scheme significantly outperforms the benchmark classic greedy spectral efficiency (SE) based scheme and an energy efficiency based scheme by at least 3 and 2 orders of magnitude, respectively.

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OFDM无线通信系统上行链路的电磁发射感知资源分配

随着无线通信的日益普及和融合，服务提供商必须不断升级其网络，以支持不断增长的带宽需求。然而，由于无线通信系统在射频波上运行，由于移动通信设备的普及，这些系统的电磁(EM)发射对健康的影响越来越受到关注。为了解决这些问题，本文提出了一种OFDM无线系统上行链路的电磁减排方案。我们将EM约简方案描述为一个凸优化问题，并通过在用户各自的子载波上分配比特来解决它。这是基于网络可以预测给定传输窗口中所有用户的信道状态信息的假设。仿真结果表明，我们提出的方案显著优于基准的经典贪婪频谱效率(SE)方案和基于能源效率的方案，分别至少提高3个和2个数量级。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 International Symposium on Wireless Communication Systems (ISWCS)

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