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Distributed Throughput Maximization in Wireless Networks Using the Stability Region

机译：使用稳定区域的无线网络中的分布式吞吐量最大化

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摘要

In this paper, a game-theoretical framework for the design of distributed algorithms that control the transmission range (TR) of nodes in order to maximize throughput in Wireless Multihop Networks (WMN) is proposed. It is based on the stability region of the link-scheduling policy adopted for the network. The stability region is defined as the set of input-packet rates under which the queues in the network are stable (i.e., positive recurrent). The goal of the TR-control algorithms is to adapt the stability region to a given set of end-to-end flows. In the algorithms, the flows control distributively the nodes' TRs using the stability region in order to enable higher end-to-end packet rates while guaranteeing stability. In order to demonstrate how the algorithms can be designed using the proposed game-theoretical framework, a new TR-control algorithm for IEEE-802.16 WMNs is developed. Its convergence is demonstrated, and a performance bound is calculated. Finally, simulation results show that the algorithm is able to find the optimal TRs more effectively. The TRs achieve throughput levels that are at least 90 percent of the optimal throughput for 72 percent of the simulated scenarios, whereas the classic approach of spatial-reuse maximization does this for 62 percent of the scenarios.
机译：在本文中，提出了一种用于设计分布式算法的博弈论框架，该算法可控制节点的传输范围（TR），以最大程度地提高无线多跳网络（WMN）的吞吐量。它基于网络采用的链路调度策略的稳定区域。稳定区域定义为一组输入数据包速率，在该组输入速率下网络中的队列保持稳定（即正循环）。 TR控制算法的目标是使稳定区域适应给定的一组端到端流。在算法中，流使用稳定性区域来分布式控制节点的TR，以便在保证稳定性的同时实现更高的端到端分组速率。为了演示如何使用提出的博弈论框架设计算法，开发了一种用于IEEE-802.16 WMN的新TR控制算法。证明了其收敛性，并计算了性能范围。最后，仿真结果表明，该算法能够更有效地找到最优TR。 TR达到的吞吐量水平至少是72％的模拟方案的最佳吞吐量的90％，而传统的空间复用最大化方法可以实现62％的方案。

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