标题: 针对行动多跃中继系统在行动WiMAX系统中之无线资源管理效能之研究
Radio Resource Management for Mobile Multihop Relay(MMR) in Mobile WiMAX System
作者: 朱家弘
黄经尧
电机学院微电子奈米科技产业专班
关键字: 多跃中继系统;relay
公开日期: 2008
摘要: 随着使用者对于高速无线资料传输的需求增加,行动 WiMAX 系统不仅仅能满足此需求,并且已经成为未来3.5代、第4代行动通讯系统的候选人之一。但是在多媒体应用的持续发展下,除了高传输速率、高频宽的无线通讯服务已经是必需的条件,还必须考虑到整个基地台底下用户的平均传输速率与整体服务区域的提升。因此行动多跃中继系统(MMR)等提升服务品质的系统,势必会成为下一代行动通讯开发的基本技术。基于此多跃中继系统的规范(IEEE802.16j)即因酝而生。
在本论文中,将针对在有多跃中继系统的支援的情况下,对于离基地台较远或是传输通道情况较差的使用者,给予一定程度的中继传输服务品质保证,进而增加系统使用者容量或涵盖范围。因此我们发展行动WiMAX模拟平台,建立了包含基础无线资源管理以及可以支援多跃中继系统运作的MAC层。在我们的模拟当中,我们同时也考虑了在即时与非即时混和式服务下的传输品质要求下,做出有效的通道选取。在满足使用者传输品质要求的前提下,有效的分配无线传输资源。根据模拟数据的分析,我们可以得知,在有多跃中继系统的支援下,能够有效的提升在整体的使用者的平均传输速率并减少同频干扰进而提升传输品质及系统的使用者容量。
The mobile WiMAX which provide high speed transmission over large area has been adopted as one of the candidates of next generation communication system. But, with higher demand of multi-media application, not only high date rate and high bandwidth is necessary for wireless transmission, but also to consider whole cell average throughput, and coverage extension. Consequently, the Mobile Multihop Relay (MMR) system will be the solutions of future wireless system. Base on those idea the Mobile Multihop Relay (MMR) system were establish in IEEE 802.16j.

In this thesis, we apply Mobile Multihop Relay (MMR) system on mobile WiMAX to investigate the system level performance analysis when poor RF condition users are served with relay. Besides support poor users, we also consider the Quality of Service (QoS) requirements of mixed traffic services. As the result, we build a simulation platform for mobile WiMAX with basic Radio Resource Management (RRM) and Mobile Multihop Relay (MMR) enabled MAC layer. We adopt an effective path selection to consider simple scheduling algorithm for QoS guarantee and SINR enhancement for poor users. In the simulation result, the cell average capacity can be increase significantly because of the Mobile Multihop Relay (MMR) can help the partial poor RF user upgrade their AMC. With Mobile Multihop Relay (MMR) system, the SINR is enhanced so that the transmission quality is promoted and increase the system capacity.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT009494519
http://hdl.handle.net/11536/37973
显示于类别:Thesis


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