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Handoff analysis of the hierarchical cellular system

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4 Author(s)
Sung-Hong Wie ; Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea ; Jae-Shin Jang ; Byung-Cheol Shin ; Dong-Ho Cho

As mobile telephone traffic demands increase in the future, interest in cellular systems with a hierarchical structure will grow. A hierarchical cellular system can provide a high system capacity, efficient channel utilization, and an inherent load-balancing capability. In this type of system, calls blocked in a microcell flow over to a macrocell which is superimposed on a number of microcells. When overflow calls which are accommodated in a macrocell cannot be returned to a microcell, the macrocell channels become saturated. Thus, we propose a hierarchical cellular system with an underflow scheme which permits overflow calls to return to microcells. We model this underflow scheme and analyze system performance

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:49 ,  Issue: 5 )