Dissertation Announcement for Weixian Liao
10/23/15 at 8:30 AM
October 19, 2015
Dear faculty, graduate and undergraduate students, You are cordially invited to my master thesis oral defense .
Dissertation Title: Energy Cost Optimization For Strongly Stable Multi-hop Green Cellular Networks
When: Friday, Oct. 23th, 2015, 8:30 AM
Where: HPC, Room: 10
Candidate: Weixian Liao
Degree: Master, Electrical and Computer Engineering
Committee:
Dr. Jenny Q. Du
Professor of Electrical and Computer Engineering
(Major Professor)
Dr. James E. Fowler
Professor of Electrical and Computer Engineering
(Committee Member)
Dr. Pan Li Assistant
Professor of Electrical and Computer Engineering
(Committee Member) Abstract:
Last decade witnessed the explosive growth in mobile devices and their traffic demand, and hence the significant increase in the energy cost of the cellular service providers. One major component of energy expenditure comes from the operation of base stations. How to reduce energy cost of base stations while satisfying users’ soaring demands has be- come an imperative yet challenging problem. In this dissertation, we investigate the mini- mization of the long-term time-averaged expected energy cost while guaranteeing network strong stability. Specifically, considering flow routing, link scheduling, and energy con- straints, we formulate a time-coupling stochastic Mixed-Integer Non-Linear Programming (MINLP) problem, which is prohibitively expensive to solve. We reformulate the problem by employing Lyapunov optimization theory and develop a decomposition based algorith- m which ensures network strong stability. We obtain the bounds on the optimal result of the original problem and demonstrate the tightness of the bounds and the efficacy of the proposed scheme.
Best Regards,
Weixian Liao