Performance Analysis of Distance-Assisted Handoff Algorithm in Multi-Cellular Systems

Jen Shu SHIH
Ken-ichi ITOH
Takuro SATO

IEICE TRANSACTIONS on Communications   Vol.E85-B    No.9    pp.1676-1684
Publication Date: 2002/09/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technology
handoff,  distance measurement,  RSSI measurement,  mobile communication system,  performance analysis,  

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This paper assesses the performance of the handoff algorithm based on distance and RSSI measurements in a multi-cellular environment by computer simulation. The algorithm performs a handoff if handoff initiation conditions, handoff possible conditions, and handoff selective conditions are met. The performance criteria are based on the average number of handoffs, the crossover points and the average number of outages. Numerical results are presented to demonstrate the feasibility of the algorithm. The performance of the distance-assisted handoff algorithm is compared with that of a conventional algorithm that utilizes signal strength alone. Overall, the distance-assisted algorithm exhibits higher performance in average number of handoffs and the crossover points, yet exhibits a higher number of outages on average than the conventional algorithm.