@conference {
	title = {An Optimization-based Approach to Flow~Control and Resource Allocation Problem in Satellite Communication Systems},
	author = {Akkor, Gun., Baras, John S., Hadjitheodosiou, Michael.},
	year = {2004},
	month = {05/2004},
	abstract = {We propose an approach to optimize resource sharing and flow control in a multi-beam broadband satellite system that supports both unicast and multicast flows. We show that, in this architecture, the load on every spot-beam queue could be different, depending on the type of the flows and the distribution of the receivers across spot-beam coverage areas. This load imbalance may significantly under-utilized the system resources and decrease the system throughput when both unicast and multicast flows are active in the system. In this paper, we formulate an optimization problem for Intra- and inter-beam resource sharing such that the variance of the session rates experienced by users of a flow located in different beam coverage areas is minimized. The result of our resource allocation also determines the maximum sustainable rate of each flow. We present results that compare the beam utilization and maximum sustainable sessions rates with and without optimization. We conclude that this method improves the average session rates up to 40\% and average utilization of the system up to 15\% when both unicast and multicast flows are active.},
	address = {Monterey, California},
	booktitle = {22nd AIAA International Communication Satellite Systems Conference \&amp; Exhibit 2004, (ICSSC)}
}
@conference {
	title = {A Reliable Multicast Transport Protocol with Feedback Implosion Suppression for Satellite Communication Systems},
	author = {Akkor, Gun., Baras, John S.},
	year = {2004},
	month = {03/2004},
	abstract = {In this paper, we propose a reliable multicast transport protocol for satellite communication systems. Many of the emerging applications in the Internet would benefit from reliable multicast services, and broadband satellite communication systems have attractive characteristics for supporting such services. However, many of the protocols designed primarily for terrestrial networks do not perform well over satellite networks. Therefore, it is necessary to look at the problem of reliable multicast in the solution space of satellite communications. Our protocol makes use of a special form of forward error correcting codes and couples it with an adaptive window based control mechanism to dynamically adjust the number of encoding packets forwarded to the users. Protocol makes very good use of the broadcast nature of the satellite channel and attempts to minimize the feedback volume by a novel feedback implosion suppression algorithm. We evaluate the protocol performance by computer simulations.},
	address = {Princeton, New Jersey},
	booktitle = {38th Annual Conference on Information Sciences and Systems (CISS 2004)},
	pages = {pp. 1-6}
}
