Game Theory Based Energy-Aware Uplink Resource Allocation in OFDMA Femtocell Networks

Game Theory Based Energy-Aware Uplink Resource Allocation in OFDMA Femtocell Networks
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OFDMA Femtocell 网络中基于博弈论的能量感知上行链路资源分配

DOI:
10.1155/2014/658158
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发表时间:
2014-03
影响因子:
2.3
通讯作者:
Zhaoming Lu
Zhaoming Lu
中科院分区:
计算机科学4区
文献类型:
--
作者:
Xiangming Wen;Xiaoli Chu;Haijun Zhang;Zhaoming Lu

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Femtocell不仅在运营商网络中是一种很有前途的技术,而且在工业无线传感器网络中具有潜在的应用。在本文中,我们研究了能量有效的上行链路功率控制和子信道分配在两层毫微微蜂窝网络。考虑到发射功率和电路功率,我们建模的功率控制和子信道分配的问题作为一个超模块的游戏,以最大限度地提高家庭基站用户的能源效率。为了降低毫微微用户对相邻毫微微小区和宏小区的同信道干扰,我们引入了一个凸定价方案来抑制它们的自私行为。我们将资源分配问题分解为两个子问题,即分布式子信道分配方案和分布式功率控制方案,以降低成本和复杂度。仿真结果表明,与现有的功率控制和子信道分配算法相比,该算法能显著提高用户效用。
Femtocell is a promising technique not only in operator networks but also in having potential applications for industrial wireless sensor networks. In this paper, we investigate energy efficient uplink power control and subchannel allocation in two-tier femtocell networks. Taking transmit power and circuit power into account, we model the power control and subchannel allocation problem as a supermodular game to maximize energy efficiency of femtocell users. To reduce the cochannel interference from femtousers to neighboring femtocells and macrocells, we introduce a convex pricing scheme to curb their selfish behavior. We decompose the resource allocation problem into two subproblems, that is, a distributed subchannel allocation scheme and a distributed power control scheme to reduce costs and complexity. Simulation results show that the proposed algorithm can improve user utilities significantly, compared with existing power control and subchannel allocation algorithms.
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