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中国科学院大学学报 ›› 2015, Vol. 32 ›› Issue (5): 661-666.DOI: 10.7523/j.issn.2095-6134.2015.05.012

• 信息与电子科学 • 上一篇    下一篇

一种带QoS约束的资源分配和ABS功率控制算法

余林浩, 卢汉成, 洪佩琳   

  1. 中国科学技术大学信息网络实验室, 合肥 230027
  • 收稿日期:2014-09-28 修回日期:2015-03-23 发布日期:2015-09-15
  • 通讯作者: 洪佩琳
  • 基金资助:

    863计划项目(2014AA01A706)和2013年度中央高校基本科研业务费青年创新基金(WK2100060016)资助

A joint resource allocation and ABS power control algorithm with QoS constraints

YU Linhao, LU Hancheng, HONG Peilin   

  1. Information Network Lab, University of Science and Technology of China, Hefei 230027, China
  • Received:2014-09-28 Revised:2015-03-23 Published:2015-09-15

摘要:

异构网络中,宏基站在时域选取几乎空白子帧(ABS),降低功率传输,可有效减小Pico基站扩展范围(CRE)内用户受到的干扰.但鲜有文献联合考虑功率降低和用户的服务质量(QoS)约束.本文提出一种满足用户QoS约束条件下联合网络资源分配和宏基站ABS期间功率控制的算法(RA-APC),算法在资源分配和ABS功率控制之间来回迭代求解.仿真结果表明,该算法收敛速度快,能够实现网络资源合理利用,有效提升系统整体性能.

关键词: 异构网络, 低功率ABS, 功率控制, QoS约束

Abstract:

In heterogeneous networks, Macro eNodeBs reduce transmit power on almost blank subframe (ABS) so that Pico cell range expansion(CRE) users could be protected from cross-layer interference. However, few focus on power reduction and user QoS constraints. In this paper, a joint resource allocation and ABS power control algorithm(RA-APC) is proposed. The algorithm is carried out by iterating between RA and APC under user QoS constraints. Simulation results show that the proposed algorithm converges fast and improves overall network utility.

Key words: HetNet, LP-ABS, power control, QoS constraints

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