| 摘要: |
| 为了使蜂窝网络系统中设备到设备(D2D)用户的速率总和最大,提出了一种基于干扰对齐(IA)的功率控制算法.该算法通过IA技术使得所有的D2D用户能够同时占用可使用的子载波;同时,控制每一个D2D用户在子载波上的功率,使所有D2D用户在对蜂窝用户(CU)产生的干扰小于干扰阈值的前提下,其速率和达到最大.仿真结果表明:与传统的基于频分多址(FDMA)的功率控制算法相比,本算法在干扰阈值为10 dBm时,所得到的D2D用户的总速率和可提升约6 bit·S-1·Hz-1. |
| 关键词: 功率控制 设备到设备 干扰对齐 速率和 FDMA |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金项目(61503251) |
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| Device to device power control algorithm based on interference alignment |
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WANG Zhen, LI Li, WANG Bin, ZHANG Daoxu
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College of Information,Mechanical and Electrical Engineering,Shanghai Normal University
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| Abstract: |
| In this paper,we present a power control algorithm based on interference alignment (IA) for device to device(D2D) network.The algorithm provides the opportunity for all D2D Links to share the available subcarriers simultaneously using IA technique.Besides,it controls the power budget of each D2D pair in order to maximize the sum-rate of the system without inducing excessive interference to cellular users(CU).Simulations show that the proposed power control algorithm achieves a significant sum-rate increase up to 6 bit·s-1·Hz-1 when the interference treshold is 10 dBm,which is compared with traditional prower control algorithm based on frequency division multiple access(FDMA). |
| Key words: power control D2D network interference alignment sum-rate FDMA |
