Existing routing protocols for hybrid wireless mesh network neglect the negative impact on network lifetime and route stability caused by energy constraints and mobility of mesh clients. To solve this issue, a regional energy-and mobility-aware routing protocol is proposed in this article. Both energy and mobility features in hybrid wireless mesh network are considered in this routing protocol. On one hand, within the communication transmission range, the intensity and degree of dispersion in energy consumption can be perceived. The node whose neighbor area has sufficient energy can be selected for network services, which can balance energy and extend the network lifetime. On the other hand, the mobility of clients is considered to enhance the stability and reduce network overhead. Therefore, regional energy-and mobility-aware routing protocol can balance network energy consumption, prolong network lifetime, and improve route stability. Simulation results via NS2 show that regional energy-and mobility-aware routing protocol can achieve better performance significantly. Due to the features of low cost, highly robust, and high reliability, wireless mesh network (WMN) is one of the key technologies in the next generation of wireless network. The self-organizing and self-healing peculiarities can dramatically reduce the complexity in network deployment and maintenance. WMN can be widely used in many circumstances, such as company network, medical system, and broadband family network. In addition, because of the advantage of seamless broadband connection to the Internet, WMN has attracted increasing concentration from researchers. [1] [2] [3] WMN is composed of infrastructure WMN, client WMN, and hybrid WMN. Infrastructure WMN includes static mesh routers with multiple radio interfaces, while client WMN is made up of mobile mesh clients which are always equipped with only one radio interface. Hybrid WMN combines advantages of infrastructure WMN and client WMN, which has stronger network connectivity, higher reliability, and larger coverage. 4,5 Its structure is quite more flexible and closer to actual demand than infrastructure WMN or client WMN. 6 In hybrid WMN, mesh routers have high capacity and stability, while mesh clients have limited energy and high mobility. Mesh clients can not only communicate with each other by accessing mesh routers but they can also forward packets directly without the help of mesh routers. 7 Routing protocols aim to provide best routes for two communicating parties, which can greatly influence the Creative Commons CC-BY: This article is distributed under the terms of the Creative Commons Attribution 3.0 License
In REF , Wireless Mesh Network (WMN) is one of the key technologies in the next generation of wireless network.
Regional energy- and mobility-aware routing protocol for hybrid wireless mesh network
International Journal of Distributed Sensor Networks
Computer Science