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多用户电力通信OFDMA-SDMA系统下行链路的资源分配 被引量:4
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作者 徐志强 翟明岳 赵宇明 《北京邮电大学学报》 EI CAS CSCD 北大核心 2009年第2期123-127,共5页
研究了电力通信正交频分多址-空分多址(OFDMA-SDMA)系统在每正交频分复用(OFDM)符号内各用户要求在比特数、各子信道功率上限和特定比特数约束下的多用户在其下行链路中的资源分配模型.提出一种基于用户空间正交性和优先级的逐比特查表... 研究了电力通信正交频分多址-空分多址(OFDMA-SDMA)系统在每正交频分复用(OFDM)符号内各用户要求在比特数、各子信道功率上限和特定比特数约束下的多用户在其下行链路中的资源分配模型.提出一种基于用户空间正交性和优先级的逐比特查表加载和交换调整的功率自适应动态资源分配算法.在电力专用的无线通信环境下对算法进行了仿真.结果表明,新算法在保障用户服务质量的同时,有效地提高了资源的利用率,而且兼顾了一定的公平性. 展开更多
关键词 电力通信 正交频分多址-空分多址 资源分配 优先级 交换调整
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Implementation of Efficient Burst Assembly Algorithm with Traffic Prediction
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作者 Mmoloki MangwalaI Boyce Balekane Sigweni Obeten Obi Ekabua 《Computer Technology and Application》 2013年第3期153-161,共9页
This paper reports on the implementation of efficient burst assembly algorithms and traffic prediction. The ultimate goal is to propose a new burst assembly algorithm which is based on time-burst length (hybrid) thr... This paper reports on the implementation of efficient burst assembly algorithms and traffic prediction. The ultimate goal is to propose a new burst assembly algorithm which is based on time-burst length (hybrid) threshold with traffic prediction to reduce burst assembly delay in OBS (Optical Burst Switching) networks. Research has shown that traffic always change from time to time, hence, any measure that is put in place should be able to adapt to such changes. With our implemented burst assembly algorithm, the traffic rate is predicted and the predicted rate is used to dynamically adjust the burst assembly length. This work further investigates the impact of the proposed algorithm on traffic self similarity. 展开更多
关键词 OBS (Optical Burst Switching) burst assembly algorithm traffic prediction self similarity Hurst parameter.
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