Unlike unicast transmission, a multicast transmission can not attribute its bandwidth usage to any single receiver. Therefore, mechanisms to distribute the cost among various receivers are needed. However, little is known about the performance of the two mechanisms given different multicast trees and user utility distribution. We show that none of the average welfare loss of SH and the average budget deficit of MC dominates the other. Note that neither MC nor SH collects any revenue.
Profit maximization is also an important goal for economic mechanisms.
We have also studied issues related to revenue maximization of multicast transmissions. Research Intern in the Networking Techniques Department. Paging facilitates efficient power management at the mobile host by allowing the host to update the network less frequently. Our protocol provides a means for the network to locate the exact location of the mobile host based on approximate location information before delivering packets destined to the mobile host. Research Intern in the Systems and Networking Group.