Efficient link scheduling for rechargeable wireless ad hoc and sensor networks

Efficient link scheduling for rechargeable wireless ad hoc and sensor networks
复制标题

可充电无线自组网和传感器网络的高效链路调度

DOI:
10.1186/1687-1499-2013-223
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发表时间:
2013-09
期刊:
Journal on Wireless Communications and Networking
影响因子:
--
通讯作者:
Zhao Lin
Zhao Lin
中科院分区:
其他
文献类型:
--
作者:
Sun Guodong;Qiao Guofu;Zhao Lin

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为了提高网络吞吐量,我们研究了可充电无线自组网和传感器网络的链路调度问题。高效的链路调度对于无线网络来说是非常关键的,人们已经做了很多努力来解决这个问题。然而,以前的工作只考虑如何减少邻近链路内的干扰,不能提高可充电无线网络的网络吞吐量。在可充电无线网络中,由环境能量(如太阳能和振动)供电的节点必须进行充电才能与其他节点通信。因此,具有可再充电节点的链路调度不仅受到同信道干扰的限制,而且还受到节点的能量补充的限制。本文提出了一种高效的链路调度算法来提高可充电无线自组网和传感器网络的网络吞吐量。所提出的设计基于真实的网络模型和数学公式,实现了最优解的恒定比率。在理论分析的基础上,进行了仿真实验,验证了算法的有效性。
We study the link scheduling for rechargeable wireless ad hoc and sensor networks to improve network throughput. Efficient link scheduling is highly critical for wireless networks, and a lot of efforts have been made to address this issue. The previous work which only considers how to reduce interference within close-by links, however, fails to improve the network throughput for rechargeable wireless network in which a node, powered by ambient energy (such like solar and vibration) has to be recharged before it can communicate with other nodes. Thus, link scheduling with rechargeable nodes is constrained not only by co-channel interference but also by energy replenishment of the node. In this paper, we develop efficient link scheduling algorithms to improve the network throughput of rechargeable wireless ad hoc and sensor networks. The proposed design, based on realistic network models and mathematical formulation, achieves constant ratio of the best solution. Besides the theoretical analysis, simulation experiments are conducted to evaluate our algorithms.
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