| 具有时延约束的功率分配技术 |
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| 作者姓名： | 彭喆 卢汉成 洪佩琳 |
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| 作者单位： | 中国科学技术大学电子工程与信息科学系信息网络实验室, 合肥 230027 |
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| 基金项目： | 国家自然科学基金（61170231）资助 |
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| 摘 要： | 综合考虑业务时延敏感特性和信道质量，给出时变信道下多用户系统有效容量表达式，提出基于有效容量的多用户功率分配算法（MPAS）. 仿真结果表明，与最大化吞吐量为目标的注水算法和用户功率分配次优算法相比，MPAS能够获得10%~20%的有效容量增益，有效地满足业务的时延要求.
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| 关 键 词： | 有效容量 功率分配 时延约束 多用户 |
| 收稿时间： | 2013-01-25 |
| 修稿时间： | 2013-06-28 |
Power allocation scheme for delay-constrained communication |
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| Authors: | PENG Zhe LU Hancheng HONG Peilin |
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| Institution: | Information Network Lab of EEIS Department, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | This paper focuses on the power allocation scheme for delay-constrained communication with delay requirements and time-varying channels. We formulate the effective capacity of the multi-user system for time-varying channel and propose the multiuser power allocation scheme (MPAS) based on effective capacity. Simulation results show that MPAS achieves 10%~20% effective capacity gain over the water-filling algorithm aimed at throughput maximization as well as the suboptimum power allocation algorithm. |
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| Keywords: | effective capacity power allocation delay-constrained multi-user |
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