@conference {
	title = {Caching and Multicasting in DBS systems},
	author = {Liu, Mingyan., Karir, Manish., Baras, John S.},
	year = {1999},
	month = {09/1999},
	abstract = {The use of caching and multicasting has been studied extensively in the context of terrestrial networks. However, the use of these technologies in a Direct Broadcast Satellite (DBS) system remains unclear. In this paper, we discuss possible choices of caching and multicasting schemes, motivated by current applications in the terrestrial Internet, that could be considered for a DBS system. We examine their advantages and disadvantages as well as the tradeoffs involved in combinations of different approaches. We also propose some uses of these technologies and describe an architecture that enhances the performance and efficiency of a DBS system.},
	address = {Aizu, Japan},
	booktitle = {1999 International Workshop on Group Communications},
	pages = {pp. 56-61}
}
@conference {
	title = {Hybrid Internet Simulation Testbed},
	author = {Liu, Mingyan., Karir, Manish., Raissi-Dekhordi, Majid., Baras, John S.},
	year = {1999},
	month = {08/1999},
	abstract = {Internet technology as a widely accepted modern telecommunication standard has been widely extended to combine with numerous other technologies, e.g..,satellite, ATM, wireless. This is what we term as Hybrid Internet. Along with this technology emerging, various enhancements and alterations of standard TCP/IP for different purposes have been proposed and studied in-tensively. More and more frequently we are facing the question of how to choose from these different schemes to design a system for a particular purpose, which would inevitably involve the interaction and trade-of study. We believe that simulation is a powerful tool for this type of work. In this paper, we describe our implementation of a Hybrid Internet testbed which includes a series of traffic models and TCP/IP enhancements. The goal of our work is to make a set of reusable modules upon which we can build complex systems to study the standard protocols and their variations. We also present application examples using these module components.},
	address = {Washington DC},
	booktitle = {Proceedings of the 1999 OPNET Annual Technology Conference (OPNETWORK)},
	pages = {pp. 1-6}
}
@conference {
	title = {A Simulation Study of Enhanced TCP/IP Gateways for Broadband Internet over satellite},
	author = {Karir, Manish., Liu, Mingyan., Barrett, Bradley A., Baras, John S.},
	year = {1999},
	month = {08/1999},
	abstract = {The demand for Internet bandwidth has been growing rapidly over the years and the use of high bandwidth satellites has been proposed as one possible solution to meet the increasing demand. However, there are certain performance problems with providing Internet over satellite due to the nature of TCP/IP protocol suite and the satellite link characteristics. In this paper we describe a simulation study of architecture for improving the performance of TCP/IP over satellite links. On each end of satellite link, there are gateways that split the TCP ~connection so that the satellite link is transparent to the end hosts. The split TCP connection over the satellite segment is then optimized. TCP connection control is maintained on each segment of the split connection. We simulated such an architecture in OPNET and present results showing improved throughput over the satellite link.~},
	address = {Washington DC},
	booktitle = {OPNETWORK \&rsquo;99},
	pages = {pp. 1-6}
}
