On Accurate Measurement of Link Quality in Multi-Hop Wireless Mesh Networks

Overview

This paper presents a highly efficient and accurate link-quality measurement framework, called EAR (Efficient and Accurate link-quality monitoR), for multi-hop wireless mesh networks, that has several salient features. It exploits three complementary measurement schemes: passive, cooperative, and active monitoring. EAR maximizes the measurement accuracy by dynamically and adaptively adopting one of these schemes and opportunistically exploiting the unicast application traffic present in the network, while minimizing the measurement overhead. EAR has been evaluated extensively via both ns-2-based simulation and experimentation on the Linux-based implementation.