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An Adaptive Handoff Method for Dynamic Traffic Distribution in Next-Generation Packet-based Mobile Systems  

Kim, Nam-Gi (삼성전자 정보통신총괄 통신연구소)
Choi, Hye-Eun (한국과학기술연구원 전자전산학과)
Yoon, Hyun-Soo (한국과학기술원 전자전산학과)
Publication Information
Journal of KIISE:Information Networking / v.32, no.3, 2005 , pp. 404-414 More about this Journal
Abstract
In the packet data network systems beyond 3G, the service quality of current users is affected by traffic load due to the packet burstiness. There also exists a hot cell problem, a well-known problem of cellular systems, caused by traffic centraliBation. Hot cell problem is one of the major reasons of degrading system performance because hot cell increases the call drop rate without fully utilization of system resource. Therefore, it is very important to distribute the traffic on the several neighboring cells so that system uses its resource effectively and maintains the quality of service. In this paper, we propose the adaptive handoff algorithms for distributing traffic in the packet data network systems. In addition, we propose a new load estimation method with MAC state diagram suitable for packet data network systems. Through the simulation results, we could find that proposed algorithm is able to improve efficiency of system resource and to assure the service quality of users through traffic distribution.
Keywords
Mobile communication; Cellular system; handoff; traffic distribution;
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