| 摘要: |
| 通过约束小小区下行链路的传输功率来抑制相邻小小区之间的干扰.同时,使用了一种低复杂度的子载波分配方案,可以使得小小区的下行速率尽可能地提高.在对小小区进行下行链路发射功率控制时,使用广义注水算法给出了小小区下行传输功率的最优解.仿真结果显示,子载波选择方案和功率分配算法,在提高小小区的下行传输速率的同时,有效控制了相邻小区间的干扰. |
| 关键词: 小小区 干扰抑制 功率控制 广义注水算法 |
| DOI： |
| 分类号: |
| 基金项目:上海市教育委员会科研创新项目(12ZZ126);上海师范大学重点学科(DZL126) |
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| Small-cell network downlink interference suppression method |
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ZHANG Daoxu1, LUO Hanwen2
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1.College of Information,Mechanical and Electrical Engineering,Shanghai Normal University;2.Electronic and Electrical Engineering,Shanghai Jiao Tong University
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| Abstract: |
| In order to control the level of interference among adjacent small-cells effectively,in this paper,we suppress the interference between adjacent small-cells through controlling the small-cell downlink transmission power.Meanwhile,we use a low complexity subcarrier allocation scheme,making small-cell downlink rate be improved as much as possible.In small cell downlink transmission power control,we use a generalized water-filling algorithm which gives the optimal solution of downlink transmission power.Simulation results show that subcarrier allocation scheme and power allocation algorithm can improve small-cell downlink transmission rate and control the level of interference between adjacent small-cell effectively. |
| Key words: small-cell interference suppression power control generalized water-filling algorithm |
