Dynamic Cluster Head for Lifetime Efficiency in WSN
Dynamic Cluster Head for Lifetime Efficiency in WSN
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DOI：
10.1007/s11633-009-0048-0
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发表时间：
2009-02-01
影响因子：
4.3
通讯作者：
Yang, Shuang-Hua
中科院分区：
文献类型：
--
作者：
Abusaimeh, Hesham;Yang, Shuang-Hua
节省能源和延长网络寿命是无线传感器网络 (WSN) 面临的重大挑战。在本文中，我们提出了一种基于 ZigBee 标准（最新的 WSN 标准）在同一簇中的无线传感器节点之间分配簇头职责的机制。 ZigBee 在其路由层中支持自组织按需矢量 (AODV) 和簇树路由协议。然而，这些协议都没有考虑网络建立过程或数据路由过程中节点的能量水平。簇树路由协议支持单簇或多簇网络。然而，多集群网络中的每个集群只有一个节点作为簇头。这些簇头在网络生命周期内固定在每个簇中。因此，使用这些簇头将导致它们很快死亡，并且与这些簇头链接的整个节点将与主网络断开。因此，所提出的在同一簇中的无线传感器节点之间分配簇头角色的技术对于延长网络的寿命至关重要。我们提出的技术在性能方面比这些协议的原始结构更好。提高了无线传感器节点的寿命，使WSN的寿命比原网络寿命增加了50%左右。
Saving energy and increasing network lifetime are significant challenges in wireless sensor networks (WSNs). In this paper, we propose a mechanism to distribute the responsibility of cluster-heads among the wireless sensor nodes in the same cluster based on the ZigBee standard, which is the latest WSN standard. ZigBee supports ad hoc on-demand vector (AODV) and cluster-tree routing protocols in its routing layer. However, none of these protocols considers the energy level of the nodes in the network establishing process or in the data routing process. The cluster-tree routing protocol supports single or multi-cluster networks. However, each single cluster in the multi-cluster network has only one node acting as a cluster head. These cluster-heads are fixed in each cluster during the network lifetime. Consequently, using these cluster-heads will cause them to die quickly, and the entire linked nodes to these cluster-heads will be disconnected from the main network. Therefore, the proposed technique to distribute the role of the cluster head among the wireless sensor nodes in the same cluster is vital to increase the lifetime of the network. Our proposed technique is better in terms of performance than the original structure of these protocols. It has increased the lifetime of the wireless sensor nodes, and increased the lifetime of the WSN by around 50% of the original network lifetime.