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首页> 外文期刊>IEEE Journal on Selected Areas in Communications >Dynamic allocation of downlink and uplink resource for broadbandservices in fixed wireless networks
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Dynamic allocation of downlink and uplink resource for broadbandservices in fixed wireless networks

机译:固定无线网络中宽带服务的下行链路和上行链路资源的动态分配

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摘要

We propose and analyze a resource allocation algorithm, referrednto as the enhanced staggered resource allocation (ESRA) method, fornfixed broadband wireless networks with directional antennas at basenstations and terminals. The new method is based on the staggerednresource allocation (SRA) algorithm with consideration of receptionnquality at terminals. Terminals are categorized into multiple classes,ndepending on their ability to tolerate concurrent packet transmissions.nThe purpose of the ESRA method is to maximize concurrent transmissionsnup to an extent tolerable by the receiving terminals for throughputnimprovement, while avoiding major cochannel interference in the networksnwhere frequency is reused very aggressively. For practical radionparameters, the ESRA method provides 98.69% coverage and yields anmaximum downlink throughput of 36.10% per sector while meeting a 15 dBnsignal-to-interference ratio (SIR). As for the uplink, using full powerncontrol, the throughput reaches 16.7% per sector with a packet lossnprobability of less than 5×10-4. The high ESRAnthroughput translates into a very large network capacity, and the highnquality of service reveals that the new method can support real-timentraffic such as voice and video, as expected in future broadbandnmultimedia services in fixed wireless networks
机译:我们提出并分析了一种资源分配算法,称为增强型交错资源分配(ESRA)方法,该算法在基站和终端上使用定向天线固定宽带无线网络。新方法基于交错资源分配(SRA)算法,并考虑了终端的接收质量。根据终端对并发分组传输的承受能力,可以将终端分为多个类别。n ESRA方法的目的是将并发传输最大化,达到接收终端可承受的吞吐量改善水平,同时避免在重复使用频率的网络中出现主要的同信道干扰非常积极对于实用的无线电参数,ESRA方法可提供98.69%的覆盖率,并且每个扇区的最大下行链路吞吐量为36.10%,同时满足15 dBn的信号干扰比(SIR)。对于上行链路,使用完全功率控制,每个扇区的吞吐量达到16.7%,丢包概率小于5×10-4。高ESRA吞吐量转化为非常大的网络容量,并且高服务质量表明,新方法可以支持语音和视频等实时流量,正如固定无线网络中未来的宽带n多媒体服务所期望的那样

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