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| 多小区OFDMA系统中低开销的基站协作资源分配算法 | |
| 引用本文： | 贾亦真,陶晓明,陆建华. 多小区OFDMA系统中低开销的基站协作资源分配算法[J]. 清华大学学报(自然科学版), 2011, 0(11): 1637-1642 |
| 作者姓名： | 贾亦真 陶晓明 陆建华 |
| 作者单位： | 清华大学电子工程系; |
| 基金项目： | 国家“九七三”重点基础研究发展计划(2007CB310601); 国家自然科学基金项目(60972021,61021001); 中国博士后科学基金项目(20100470332) |
| 摘 要： | 基站协作是多小区正交频分多址接入(OFDMA)系统中降低共信道干扰的有效手段。为了降低收集各小区信息所需的开销,提出一种新的基站协作资源分配算法。算法由各基站计算本小区的业务负荷及所有子信道对本小区的价值,并发送至中心节点。根据这两类信息,资源首先由中心节点分配至各小区,再由各基站分配至用户。该算法的开销仅约为现有方法的2/U(U为协作小区的总用户数)。与无基站协作的方法相比,该算法仍可获得30%以上的用户容量或吞吐量增益。结果表明:本算法兼具实用性和有效性,有望应用于新一代移动通信系统。 |
| 关 键 词： | 资源分配 基站协作 正交频分多址接入(OFDMA) 蜂窝系统 |
Low-overhead resource allocation with base station cooperation for multicell OFDMA systems |
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| JIA Yizhen,TAO Xiaoming,LU Jianhua. Low-overhead resource allocation with base station cooperation for multicell OFDMA systems[J]. Journal of Tsinghua University(Science and Technology), 2011, 0(11): 1637-1642 | |
| Authors: | JIA Yizhen TAO Xiaoming LU Jianhua |
| Affiliation: | JIA Yizhen,TAO Xiaoming,LU Jianhua(Department of Electronic Engineering,Tsinghua University,Beijing 100084,China) |
| Abstract: | Base station cooperation is an efficient way to mitigate co-channel interference in multicell orthogonal frequency division multiple access(OFDMA) systems.The overhead for information collection from each cell is reduced by a resource allocation algorithm with base station cooperation.In the algorithm,each base station computes the traffic load of its cell and the capacity of all subchannels to its cell,and sends them to the central node.This information is used to allocate resources first to each cell by t... |
| Keywords: | resource allocation base station cooperation orthogonal frequency division multiple access(OFDMA) cellular system |
| 本文献已被 CNKI 等数据库收录！ | |