Date Added: May 2012
Wireless Mesh Networks (WMNs) are designed to provide broadband wireless services; however, capacities of WMNs are fundamentally limited in bandwidth because of the scarcity of RF spectral resources. A solution is to design a WMN using multiple wireless technologies. Since the optical spectrum remains unlicensed and under-utilized, the authors propose to augment RF WMNs with Free Space Optical (FSO) systems. FSO links do not interfere with RF links and have higher capacity than RF links. In this paper, they study the throughput improvement of FSO-augmented RF WMNs.