| 一种带QoS约束的资源分配和ABS功率控制算法 |
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| 作者姓名： | 余林浩 卢汉成 洪佩琳 |
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| 作者单位： | 中国科学技术大学信息网络实验室, 合肥 230027 |
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| 基金项目： | 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 |
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| 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(Qo S)约束.本文提出一种满足用户Qo S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.
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| 关 键 词： | 异构网络 低功率ABS 功率控制 QoS约束 |
| 收稿时间： | 2014-09-28 |
| 修稿时间： | 2015-03-23 |
A joint resource allocation and ABS power control algorithm with QoS constraints |
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| Authors: | YU Linhao LU Hancheng HONG Peilin |
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| Institution: | Information Network Lab, University of Science and Technology of China, Hefei 230027, China |
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| 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. |
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| Keywords: | HetNet LP-ABS power control QoS constraints |
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