蜂窝网络中信道分配模型的优化设计与实现

发布时间：2018-03-07 06:07

本文选题：蜂窝网络　切入点：信道分配　出处：《现代电子技术》2017年02期 　论文类型：期刊论文

【摘要】：基于基站功率控制的传统信道资源分配模型,采用的帧结构中的两跳链路处于同一时隙中,不能在一帧中完成链路的数据传递,导致系统信道资源分配业务传递滞后。提出基于资源复用的蜂窝网络信道资源分配模型,蜂窝网络采用帧结构向这些通信链路分配时频资源,通过资源复用形式降低蜂窝网络的信道分配资源消耗,在一帧中实现两跳链路的信道分配数据传递。依据扰动的Greedy算法思想,按照带有扰动的信道质量矩阵,实现蜂窝网络信道分配。处于同扇区的两个中继节点间通过动态资源分配方法,按照小区信道的业务情况动态分配信道资源。通过仿真实验分析对比信道分配需求量、阻塞率、收敛性、网络吞吐量、网络节点间通信中断概率五项指标。仿真结果表明,所设计蜂窝网络信道分配模型在对蜂窝网络信道资源进行信道分配过程中,信道资源的使用率增强,分配资源消耗低,信道分配质量提高,具有较高的业务实时性。
[Abstract]:Based on the traditional channel resource allocation model of base station power control, the two-hop link in the frame structure is in the same time slot, so the data transfer of the link can not be completed in one frame. As a result of the delay in channel resource allocation, a resource reuse based channel resource allocation model for cellular networks is proposed, in which time-frequency resources are allocated to these communication links using frame structure. The channel allocation resource consumption of cellular network is reduced in the form of resource multiplexing, and the channel allocation data transfer of two-hop link is realized in one frame. According to the Greedy algorithm of disturbance, according to the channel quality matrix with disturbance, Two relay nodes in the same sector allocate the channel resources dynamically according to the traffic conditions of the cell channel through the dynamic resource allocation method. Through the simulation experiments, the channel allocation demand and blocking rate are analyzed and compared. The simulation results show that the proposed channel allocation model increases the utilization rate of channel resources in the process of channel allocation for cellular networks. The allocation resource consumption is low, the channel allocation quality is improved, and the real-time service is high.
【作者单位】：淮安信息职业技术学院;
【基金】：国家自然科学基金:基于网络编码的协作中继传输系统的优化设计与性能分析(61071113)
【分类号】：TN929.5

【相似文献】