On the Throughput Capacity Study for Aloha Mobile Ad Hoc Networks

On the Throughput Capacity Study for Aloha Mobile Ad Hoc Networks
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Aloha移动Ad Hoc网络吞吐能力研究

DOI:
10.1109/tcomm.2016.2527658
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发表时间:
2016-02
影响因子:
8.3
通讯作者:
Tokuda Hideyuki
Tokuda Hideyuki
中科院分区:
计算机科学2区
文献类型:
--
作者:
Chen Yin;Shen Yulong;Zhu Jinxiao;Jiang Xiaohong;Tokuda Hideyuki

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尽管广泛的努力探索的渐近容量界的移动的ad hoc网络(MANNETWORK),一般准确的容量研究,这样的网络仍然是一个挑战。作为一个步骤,在这个方向上走得更远,本文考虑了两个类的Aloha MANIPLES(A-MANIPLES)NA和NC,分别采用了积极的流量独立的Aloha和传统的流量相关的Aloha。我们首先定义了一个符号的成功传输概率(STP)的NA,并应用排队论分析,推导出一个一般公式的容量评估NA。我们还证明了NC实际上导致相同的吞吐量能力NA,表明NC的吞吐量能力可以评估的基础上的STP NA以及。借助STP的容量公式和随机几何分析,推导出了无限大A-MANET在最近邻/接收端传输策略下的吞吐量的解析表达式。我们进一步的分析表明,虽然它是非常繁琐的,以确定确切的吞吐量容量的表达有限的A-MANET,它是可能有一个有效的和封闭的形式近似其吞吐量容量。最后,我们探讨了容量最大化,并提供了广泛的模拟/数值结果。
Despite extensive efforts on exploring the asymptotic capacity bounds for mobile ad hoc networks (MANETs), the general exact capacity study of such networks remains a challenge. As one step to go further in this direction, this paper considers two classes of Aloha MANETs (A-MANETs) NA and NC that adopt an aggressive traffic-independent Aloha and the conventional traffic-dependent Aloha, respectively. We first define a notation of successful transmission probability (STP) in NA, and apply queuing theory analysis to derive a general formula for the capacity evaluation of NA. We also prove that NC actually leads to the same throughput capacity as NA, indicating that the throughput capacity of NC can be evaluated based on the STP of NA as well. With the help of the capacity formula and stochastic geometry analysis on STP, we then derive closed-form expressions for the throughput capacity of an infinite A-MANET under the nearest neighbor/receiver transmission policies. Our further analysis reveals that although it is highly cumbersome to determine the exact throughput capacity expression for a finite A-MANET, it is possible to have an efficient and closed-form approximation to its throughput capacity. Finally, we explore the capacity maximization and provide extensive simulation/numerical results.
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