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arXiv 1209.3416cs.ITmath.IT
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基于改进分解理论的多小区网络分布式资源分配算法设计

Distributed Resource Allocation Algorithm Design for Multi-Cell Networks Based on Advanced Decomposition Theory

Zesong Fei, Shuo Li, Chengwen Xing, Yiqing Zhou, Jingming Kuang

摘要:

在这封信中,我们研究下行链路多小区协作OFDMA无线网络的资源分配,其中功率分配和子载波调度联合优化。针对各基站在功率约束条件下协作小区最小用户速率(WSMR)加权和最大化的问题,提出了一种基于改进分解方法的分布式资源分配算法,该算法复杂度低,收敛速度快,适合实际应用。仿真结果表明,所提出的分散式算法提供了显着的吞吐量增益与较低的计算成本相比,现有的计划。

英文摘要:

In this letter, we investigate the resource allocation for downlink multi-cell coordinated OFDMA wireless networks, in which power allocation and subcarrier scheduling are jointly optimized. Aiming at maximizing the weighted sum of the minimal user rates (WSMR) of coordinated cells under individual power constraints at each base station, an effective distributed resource allocation algorithm using a modified decomposition method is proposed, which is suitable by practical implementation due to its low complexity and fast convergence speed. Simulation results demonstrate that the proposed decentralized algorithm provides substantial throughput gains with lower computational cost compared to existing schemes.

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