@conference {
	title = {Improving Network Performance in Hybrid Wireless Networks Using a Satellite Overlay},
	author = {Roy-Chowdhury, Ayan., Baras, John S.},
	year = {2007},
	month = {09/2007},
	abstract = {Large wireless networks have the ability to provide rapid connectivity in disaster areas~or to interconnect users in far-flung geographical locations. However, limitations on performance and robustness have delayed the adoption of such networks. In this paper, we show that by the addition of a satellite overlay network, the performance and robustness of large-scale wireless networks can be greatly improved and thus make their deployment possible. We define a satellite overlay network as consisting of one or more satellite nodes and multiple terrestrial {\textquoteleft}{\textquoteleft}gateway{\textquoteright}{\textquoteright} nodes that have interfaces for both satellite links and terrestrial wireless communication. We divide the terrestrial network into multiple {\textquoteleft}{\textquoteleft}clusters{\textquoteright}{\textquoteright} of wireless nodes, with each cluster being served by one or more gateway nodes. Ordinary terrestrial user nodes reach the gateway node through multi-hop terrestrial paths. We thus propose a design for a hybrid satellite and terrestrial wireless network. Through network modeling and simulation, we show that significant improvement in end-to-end performance is possible in a wireless network when the satellite overlay is present, in comparison to the performance in flat wireless networks. Our results are for both stationary and mobile ground wireless nodes.},
	address = {Turin, Italy},
	booktitle = {13th KA and Broadband Communications Conference},
	pages = {pp. 111-118}
}
