基于预测SINR的蜂窝中继网络资源优化分配
首发时间:2007-09-24
摘要:提出了一种具有“最大干扰抑制环(MIMR)”的蜂窝中继系统,推导了该模型下干扰信噪比(SINR)的表达形式,并以保证用户QoS和最大化系统吞吐量为目标,基于可预测的SINR提出了一种动态信道分配(DCA)准则。同时,基于非再生(NR)和再生(R)中继方式和系统构架特点衍生出八种资源分配算法,并结合接入控制、负载平衡和“最大路径增益”(MPG)路由机制以实现全网优化。仿真结果表明:两跳的蜂窝中继系统中第2跳链路质量相比于第1跳链路对单用户和系统都更为重要;基于可预测SINR的信道分配准则能优化资源配置,提高系统性能。
关键词: 蜂窝中继系统 最大干扰抑制环 干扰信噪比 动态信道分配 全网优化
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The Resource Optimization in Cellular Relaying Network Based on the Predicted SINR
Abstract:The cellular relaying system with Maximum Interference Mitigation Ring (MIMR) is proposed. The SINR expression (the ratio of signal and the sum of interference and noise power) under this model is derived. To guarantee the QoS of service and maximize the system throughput, a Dynamic Channel Allocation (DCA) method is proposed based on the predicted SINR. Meanwhile, considering the two relay modes: non-regenerative relay (NR) and regenerative relay(R) and system infrastructure characteristics, eight resource allocation methods are evaluated. In all the resource allocation methods, the admission control, load balance and Maximum Path-Gain Routing Algorithms (MPG) are also considered to realize the network optimization. The simulation results illustrates that the second hop link quality has more impact on both the single user and system than the first hop. The channel allocation methods based on the predicted SINR can improved the resource utilization and enhance the system performance.
Keywords: Cellular relaying system MIMR SINR DCA Network optimization
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No.1529710913011906****
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