Energy-aware online routing with QoS constraints in multi-rate wireless ad hoc networks

Wireless ad hoc networks consist of hundreds to thousands of mobile nodes that are powered by batteries. To prolong the network operational time, energy conservation in such networks is of paramount importance. Energy optimization thus is one major objective in the design of routing protocols. However, in some stringent real-time applications including target tracking and bushfire surveillance, latency is an important concern, and little attention has been paid to it in the design of routing protocols for such applications to meet the specified Quality of Service (QoS) requirements like the end-to-end latency constraint. In this paper we focus on online energy-aware routing protocol design for routing requests to meet various end-to-end latency constraints under the multi-rate environment, we aim to maximize the network lifetime through striking the right balance among the node’s transmission rate, the end-to-end latency, and energy consumption. Specifically, due to the NP-hardne...

• Type: Conference
• Year: 2010
• Where: IWCMC
• Authors: Wei Yang, Weifa Liang, Jun Luo, Wenhua Dou
• Keywords: End-to-end Latency, End-to-end Latency Constraints, IWCMC 2010, Routing Protocol