Title: On bandwidth allocation for data dissemination in cellular mobile networks

Speaker: Jianliang XU

 

Abstract


Wireless bandwidth is a scarce resource in a cellular mobile
network. As such, it is important to effectively allocate bandwidth to each
cell such that the overall system performance is optimized. Channel
allocation strategies have been extensively studied for voice
communications in cellular networks. However, for data dissemination
applications, studies on bandwidth allocation have thus far been
limited to a single-cell environment. In this talk, we investigates the
problem of bandwidth allocation for data dissemination in a multi-cell
environment, which, to the best of our knowledge, has not been investigated
before. The performance objective is to minimize the overall expected access
latency given the workload for each cell in a data dissemination system.
Two heuristic techniques, called compact allocation and cluster-step
allocation, are proposed to effectively allocate bandwidth for a cellular
network. We show through simulation experiments that the proposed schemes
substantially outperform the uniform allocation and proportional allocation
schemes.

 

Biography:

 Jianliang Xu received the B.Eng. degree in computer science and engineering
 from Zhe-Jiang University, Hangzhou, China in 1998. He is currently a PhD
candidate in the Department of Computer Science at HKUST. His research
 interests include mobile computing, Internet technologies, and distributed
systems, with an emphasis on data management and resource management issues.
See http://www.cs.ust.hk/~xujl for further information.