Delay limited capacity of ad hoc networks: asymptotically optimal transmission and relaying strategy
Delay limited capacity of ad hoc networks: asymptotically optimal transmission and relaying strategy
复制标题
自组织网络时延有限容量：渐近最优传输和中继策略
DOI：
10.1109/infcom.2003.1208992
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Rick S. Blum
中科院分区：
文献类型：
--
作者：
E. Perevalov;Rick S. Blum
研究了限制在有限区域的临时无线网络的有限容量。构建了节点运动最大化吞吐量的传输和继电器策略。能力作为最大允许延迟的函数的近似表达。发现存在延迟的临界值，以至于：（1）对于低于关键的延迟d的值，容量不会从运动中明显受益，（2）对于高于关键的延迟d的中等值，随着D2/3（3）临界延迟对节点数量的依赖性，可以通过利用运动来实现的能力增加的功能非常缓慢地增加功能（N1/14）。最后，显示了某个类别中提出的策略的渐近最优性。
The delay limited capacity of an ad hoc wireless network confined to a finite region is investigated. A transmission and relaying strategy making use of the nodes' motion to maximize the throughput is constructed. An approximate expression for the capacity as a function of the maximum allowable delay is obtained. It is found that there exists a critical value of the delay such that: (1) for values of the delay d below critical, the capacity does not benefit appreciably from the motion, (2) for moderate values of the delay d above critical, the capacity that can be achieved by taking advantage of the motion increases as d2/3, (3) the dependence of the critical delay on the number of nodes is a very slowly increasing function (n1/14). Finally, asymptotic optimality of the proposed strategy in a certain class is shown.