Abstract
Wireless Mesh Networks (WMNs) integrate the advantages of WLANs and mobile Ad Hoc networks, which have become the key techniques of next-generation wireless networks in the context of emergency recovery. Wireless Mesh Networks (WMNs) are multi-hop wireless networks with instant deployment, self-healing, self-organization and self-configuration features. These capabilities make WMNs a promising technology for incident and emergency communication. An incident area network (IAN) needs a reliable and lively routing path during disaster recovery and emergency response operations when infrastructure-based communications and power resources have been destroyed and no routes are available. Power aware routing plays a significant role in WMNs, in order to provide continuous efficient emergency services. The existing power aware routing algorithms used in wireless networks cannot fully fit the characteristics of WMNs, to be used for emergency recovery. This paper proposes a power aware routing algorithm (PARA) for WMNs, which selects optimal paths to send packets, mainly based on the power level of next node along the path. This algorithm was implemented and tested in a proven simulator. The analytic results show that the proposed power node-type aware routing algorithm metric can clearly improve the network performance by reducing the network overheads and maintaining a high delivery ratio with low latency.
Highlights
An important factor in natural disasters and emergency situations is the availability of power resources
This paper has proposed a power and node-type aware routing algorithm which exploits awareness of the power level and type of mesh node to find the optimal route to the final destination
Three scenarios were used to evaluate the performance of the Power aware routing algorithms (PARA) algorithm under varying the mobility and traffic load conditions with different node configurations, and the results were compared with those of Open shortest path first (OSPF), SM_AODV and AODV
Summary
An important factor in natural disasters and emergency situations is the availability of power resources. WMNs offer many benefits, such as ambient power and low operational cost while maintaining flexible deployment, good coverage and robustness “[7,8]” Such features mean WMNs are suited to provide excellent services in incident situations. A power node-type aware routing algorithm for disaster-response networks is proposed to explore the nodes’ power utilization. This work has considered the amount of power in a channel and the particular type of channel that will guarantee the streaming/sending information without any power loss or fading, which is a critical factor during emergency situations and natural disasters.
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