Jung-Tsung Tsai

Learn More
For wireless forward link data services, the proportional fair algorithm (PFA) incorporating opportunistic scheduling was originally designed to maintain service fairness among users as well as to exploit channel fluctuations in fading environments. The operation of PFA necessitates throughput monitoring for each user, in general through exponentially(More)
We investigate opportunistic multicast scheduling schemes for sending a multicast stream in a wireless cell. We propose schemes that exploit both multiuser diversity and broadcast gains for efficient multicast, preserve the feature of synchronization of served information provided by conventional multicasting, and provide for receivers accepting sequential(More)
In cellular networks, wireless service coverage improves through partly radio coverage overlaps between neighboring base station transmitters (BSTs). For wireless forward link data services, the overlap provides virtual soft handoff opportunities, but also introduces significant intercell interference which reduces feasible service data rates. In this(More)
We investigates the performance of movement-based location update in multitier wireless networks with sparsely correlated low-tier microcells. The topologies are considered to have random overlays of different microcell cluster sizes, with distributions spatially of two forms: homogeneous and nonhomogeneous. Permission for a mobile station (MS) to report to(More)