An In-Situ Measurement Approach for IEEE 802.11 Wireless Multihop Networks
Source: Institute for Infocomm Research
A wireless multi-hop network is a communications network composed of nodes equipped with wireless interfaces and organized in an ad hoc manner. It has become an attractive and practical solution for providing flexible and extended wireless coverage over large areas. Measurement of physical layer quantities can provide useful information for cross-layer optimization and design of networking protocols. In this paper, the authors present a cost-effective approach for performing physical-layer and link-layer measurements by exploiting the capabilities of inexpensive Commercial-Off-The-Shelf (COTS) wireless routers and open-source software tools. Their experimental results show that the measurements made using inexpensive wireless routers are consistent with theoretical models and hence reliable.