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arXiv 1602.00883cs.ITmath.IT
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具有突发到达和时延约束的多址接入分布式调度

Distributed Scheduling in Multiple Access with Bursty Arrivals and Delay Constraints

Sakshi Kapoor, Sreejith Sreekumar, Sibi Raj B Pillai

摘要:

被认为是一个多址系统与突发数据到达的终端。用户是帧同步的,可变大小的数据包独立地到达每个发射机的每个时隙。每个分组需要在由最大延迟约束指定的一定数量的时隙内被递送到公共接收器。关键的假设是终端只知道它们自己的分组到达过程,即,除了它们的统计数据之外,其余终端的到达对于每个发射机是未知的。对于这个有趣的分布式多址模型,我们设计了新的在线通信方案,传输到达的数据没有任何中断,同时确保延迟约束。特别地,以分布式方式选择每个时隙中的发射功率,同时确保联合功率矢量足以支持在该时隙中采用的数据速率的分布式选择。所提出的方案不仅是最佳的最小化的平均发送和功率,但他们也大大优于传统的正交多址技术,如TDMA。

英文摘要:

A multiple access system with bursty data arrivals to the terminals is considered. The users are frame-synchronized, with variable sized packets independently arriving in each slot at every transmitter. Each packet needs to be delivered to a common receiver within a certain number of slots specified by a maximum delay constraint. The key assumption is that the terminals know only their own packet arrival process, i.e. the arrivals at the rest of the terminals are unknown to each transmitter, except for their statistics. For this interesting distributed multiple access model, we design novel online communication schemes which transport the arriving data without any outage, while ensuring the delay constraint. In particular, the transmit powers in each slot are chosen in a distributed manner, ensuring at the same time that the joint power vector is sufficient to support the distributed choice of data-rates employed in that slot. The proposed schemes not only are optimal for minimizing the average transmit sum-power, but they also considerably outperform conventional orthogonal multiple access techniques like TDMA.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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