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首页> 外文期刊>Wireless Communications Letters, IEEE >Non-Cooperative Multi-Cell Resource Allocation and Modulation Adaptation for Maximizing Energy Efficiency in Uplink OFDMA Cellular Networks
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Non-Cooperative Multi-Cell Resource Allocation and Modulation Adaptation for Maximizing Energy Efficiency in Uplink OFDMA Cellular Networks

机译:非协作多小区资源分配和调制适配,可最大程度提高上行OFDMA蜂窝网络的能效

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摘要

we address the optimization problem of maximizing uplink energy efficiency, defined as sum of users bits-per-joule (bpj), in a multi-cell multi-user OFDMA network. Firstly, we propose a non-cooperative distributed scheme, in which mobile stations (MS) in different cells with given subcarrier assignment (SA) adjust the modulation and transmit power non-cooperatively, to optimize its own bpj. An advanced non-cooperative BS-controlled resource allocation scheme, in which the base station in each cell jointly performs SA, modulation adaptation, and power control for MSs in a non-cooperative manner, is proposed. Numerical results illustrate the tradeoff between energy and spectral efficiency, and show the proposed scheme makes great improvement on bpj with marginal loss of throughput as compared to other conventional scheme.
机译:我们解决了在多小区多用户OFDMA网络中最大化上行链路能量效率(定义为用户每焦耳比特总数(bpj))的优化问题。首先,我们提出了一种非合作的分布式方案,其中具有给定子载波分配(SA)的不同小区中的移动站(MS)非合作地调整调制和发射功率,以优化其自身的bpj。提出了一种先进的非合作基站控制的资源分配方案,其中,每个小区中的基站以非合作方式共同执行移动站,调制适配和移动台的功率控制。数值结果说明了能量和频谱效率之间的折衷,并表明与其他常规方案相比,该方案在bpj上有了很大的改进,但吞吐量略有损失。

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