Work place: National Taipei University of Technology, Taipei, 10608, Taiwan
E-mail: ycwang@ntut.edu.tw
Website:
Research Interests: Computer Networks, Network Architecture, Network Security, Mathematics of Computing
Biography
Yung-Chung Wang received the M.S. and Ph.D. degrees in electrical engineering from National Tsing Hua University, Hsinchu, Taiwan, in 1990 and 2000, respectively. From 1990 to 2001, he was a Research Engineer with the Chung-Hwa Telecommunication Laboratory, where he was engaged in research on the development of ATM switching systems and IP switch router systems. Since 2001, he has been with the Department of Electrical Engineering, National Taipei University of Technology (NTUT), Taipei, Taiwan, where he is a Full Professor. His research interests include cloud computing, wireless networks, optical networks, software-defined network, queuing theory and performance evaluation of communication networks.
By Cheng-Wei Hu Yung-Chung Wang Jenn-Shing Wang
DOI: https://doi.org/10.5815/ijcnis.2015.06.01, Pub. Date: 8 May 2015
This study developed a load balancing early handoff scheme that enables transfer part of heavy load in a base station to the others using the overlap between base stations in wireless cellular networks. The proposed scheme reduces the new call blocking probability (CBP) and handoff call connection dropping probability (CDP) as well as to increase the resource utilization of wireless networks. Since the scheme is triggered by a connection request received by the base station, it immediately reflects the loading of the base station. The proposed load balancing early handoff policy can be integrated in diverse call admission control schemes. The effectiveness of the load balancing early handoff scheme is demonstrated by integrating it with DMTBR to improve the call admission control function. Additionally, NS2 is used to simulate the load balancing early handoff scheme in a wireless network with wrap-around model. The simulation results show that the proposed scheme can effectively improve the wireless network resource utilization.
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