The Maximized Relay Capacity and Optimal Data Transmission for Wireless Sensor Networks
The Maximized Relay Capacity and Optimal Data Transmission for Wireless Sensor Networks
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DOI：
10.1109/glocom.2011.6134557
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发表时间：
2011-12
期刊：
影响因子：
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通讯作者：
W. An;Haiyan Luo;S. Ci;Jia-Kai Lin
中科院分区：
文献类型：
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作者：
W. An;Haiyan Luo;S. Ci;Jia-Kai Lin
在无线传感器网络中，节点通常由容量有限的电池供电，这已经成为无线传感器网络应用广泛部署的主要挑战之一。由于能量消耗的不均衡性，网络的整体生命周期通常由生命周期最短的节点决定，这成为一个主要问题。针对这一点，考虑在能量有限的无线传感器网络中，如何最大化从源节点传输到汇聚节点的数据量的优化问题。具体来说，我们首先分析的基础上的最大流最小割定理，以获得最大中继容量的成功传输的数据包从源节点到汇聚节点的数量，从理论的角度来看，这个问题。然后，我们提出了我们的算法，以实现最优解。通过这种方式，可以最大化预期的网络寿命。此外，我们还证明了所提出的算法的正确性。大量的仿真结果表明，显着的性能增强，可以通过使用我们提出的算法。
In wireless sensor networks (WSNs), the nodes are usually powered by batteries with limited capacities, which has become one of the main challenges to the wide deployment of WSN-based applications. The overall network lifetime, which is usually determined by the node with the shortest lifetime because of the unbalanced energy consumption, becomes a major issue. Aiming at this, we consider the optimization problem of how to maximize the data amount that can be transmitted from the source node to the sink node, given an energy-limited wireless sensor network. Specifically, we first analyze the problem on the basis of the max-flow min-cut theorem to obtain the maximum relay capacity in terms of the number of successfully transmitted packets from the source node to the sink node, from the theoretical point of view. Then, we propose our algorithms to achieve the optimal solution. In this way, the expected network lifetime can be maximized. Further, we also prove the correctness of the proposed algorithms. Extensive simulations show that significant performance enhancement can be achieved by using our proposed algorithms.