| LTE系统上行链路无线资源分配算法 |
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| 引用本文： | 任参军,钱耘之,陈明. LTE系统上行链路无线资源分配算法[J]. 通信技术, 2010, 43(1): 54-56,60 |
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| 作者姓名： | 任参军 钱耘之 陈明 |
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| 作者单位： | 东南大学移动通信国家重点实验室,江苏,南京,210096 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | LTE系统上行链路中采用SC-FDMA技术，要求为用户分配的资源块（RU）在频域上连续分布，同时位于扇区边缘的用户因为收到较为严重的外扇区干扰性能有很大恶化。文中主要针对这两个问题，在传统算法的基础上，分别提出一种改进的PF频域分组调度算法和一种改进的部分功率控制算法。仿真结果表明，二者结合能较好地改善系统性能，特别是边缘用户的性能。
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| 关 键 词： | 上行链路 软频率复用 部分功率控制 比例公平调度 |
Radio Resource Allocation Algorithm in LTE Uplink |
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| REN Can-jun,QIAN Yun-zhi,CHEN Ming. Radio Resource Allocation Algorithm in LTE Uplink[J]. Communications Technology, 2010, 43(1): 54-56,60 |
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| Authors: | REN Can-jun QIAN Yun-zhi CHEN Ming |
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| Affiliation: | REN Can-jun,QIAN Yun-zhi,CHEN Ming(State Key Lab.for Mobile Communication,Southeast University,Nanjing Jiangsu 210096,China) |
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| Abstract: | With SC-FDMA as its uplink key technology,LTE requires successive uplink RU allocation for users.Additionally,performance of the edge user deteriorates greatly due to the interference from other sectors.In order to tackle above two problems,this paper proposes two algorithms based on traditional ones: the improved PF frequency domain packet scheduling algorithm and the improved fractional power control algorithm.Simulation results indicate that the combination of these two algorithms fairly improves the per... |
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| Keywords: | uplink soft frequency reuse(SFR) fractional power control(FPC) proportional fair scheduling(PFS) |
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