上行多点协作网络中的最优回程链路容量分配

发布时间：2018-06-17 08:16

本文选题：多点协作 + 有限回程链路　；参考：《清华大学学报(自然科学版)》2014年07期

【摘要】：基站节点间回程链路的有限容量制约着蜂窝移动通信系统中多点协作网络的性能。为了有效利用回程链路容量资源,提高节点协作增益,该文以上行多用户的两节点协作网络单元为研究对象,提出了一种基于压缩—转发及用户配对的多点协作多载波传输方式;建立了在回程链路容量有限的约束下,用户配对、载波映射、压缩噪声设计及载波间回程链路容量分配的联合优化问题;提出了一种基于轮换优化的低复杂度求解算法。仿真结果表明:与随机及均等资源分配方法相比,该算法可在有限回程链路容量条件下有效提高网络的和速率。
[Abstract]:The limited capacity of backhaul links between base station nodes restricts the performance of multipoint cooperative networks in cellular mobile communication systems. In order to effectively utilize the capacity resources of backhaul links and improve the cooperative gain of nodes, the two-node cooperative network unit of the above row and multi-user is the research object in this paper. A multi-point cooperative multicarrier transmission mode based on compressing and forwarding and user pairing is proposed, and the user pairing and carrier mapping are established under the constraints of limited backhaul link capacity. The joint optimization problem of compression noise design and inter-carrier backhaul link capacity allocation is proposed, and a low complexity algorithm based on rotation optimization is proposed. The simulation results show that the proposed algorithm can effectively improve the sum rate of the network under the condition of limited backhaul link capacity compared with the stochastic and equal resource allocation methods.
【作者单位】：清华大学电子工程系微波与数字通信国家重点实验室;
【基金】：国家“九七三”重点基础研究项目(2012CB316002) 国家自然科学基金资助项目(61201192) 国家“八六三”高技术项目(2012AA011402) 东南大学移动通信国家重点实验室开放基金(2012D02) 国家国际科学与技术合作项目(2012DFG12010) 国家科学与技术专项(2013ZX03001024-004) 清华—爱立信战略合作项目(20123000059)
【分类号】：TN929.5

【共引文献】