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arXiv 1701.09010cs.NI
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基于局部投票的多跳无线网络分布式节点调度

Towards Optimal Distributed Node Scheduling in a Multihop Wireless Network through Local Voting

Dimitrios J. Vergados, Natalia Amelina, Yuming Jiang, Katina Kralevska, Oleg Granichin

摘要:

在多跳无线网络中,以有效和公平的方式调度传输是至关重要的,但具有挑战性。本文提出了一种新的分布式节点调度算法--局部投票算法。该算法试图通过基于本地信息交换的插槽重新分配来半均衡负载(定义为队列长度与分配插槽数量的比率)。该算法源于发现,最短的交付时间或延迟时,获得负载是半均衡的整个网络。此外,我们证明了,与本地投票,网络系统渐近收敛到最优调度。此外,通过大量的模拟,本地投票的性能进行了进一步研究,与文献中的几个代表性的调度算法。仿真结果表明,该算法在平均时延、最大时延和公平性方面均优于其他分布式算法。尽管是分布式的,本地投票的性能也被发现是非常接近被认为具有最佳性能的集中式算法。

英文摘要:

In a multihop wireless network, it is crucial but challenging to schedule transmissions in an efficient and fair manner. In this paper, a novel distributed node scheduling algorithm, called Local Voting, is proposed. This algorithm tries to semi-equalize the load (defined as the ratio of the queue length over the number of allocated slots) through slot reallocation based on local information exchange. The algorithm stems from the finding that the shortest delivery time or delay is obtained when the load is semi-equalized throughout the network. In addition, we prove that, with Local Voting, the network system converges asymptotically towards the optimal scheduling. Moreover, through extensive simulations, the performance of Local Voting is further investigated in comparison with several representative scheduling algorithms from the literature. Simulation results show that the proposed algorithm achieves better performance than the other distributed algorithms in terms of average delay, maximum delay, and fairness. Despite being distributed, the performance of Local Voting is also found to be very close to a centralized algorithm that is deemed to have the optimal performance.

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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