Title :
Analysis of multi-level threshold handoff algorithm
Author :
Kim, Young-il ; Lee, Kyung-jun ; Chin, Yong-oak
Author_Institution :
Electron. & Telecommun. Res. Inst., Taejon, South Korea
Abstract :
A PCS system which consists of microcells is considered, and it is assumed that the high mobility calls and low mobility calls coexist. To enhance the quality of service the multi-level threshold handoff algorithm is used. The velocity adaptive handoff (VAH) algorithm is analyzed as one of the multi-level threshold handoff algorithm. In the VAH algorithm, the handoff threshold value is assigned according to the velocity of the mobile in order to lower the handoff failure probability and to maintain the carried traffic constantly in the handoff area. Since it is necessary to estimate the velocity of the mobile for the VAH algorithm, a velocity estimation method that use a velocity codebook is analyzed. A prioritized handoff procedure is used to evaluate the VAH algorithm in respect of the traffic characteristics
Keywords :
adaptive systems; cellular radio; parameter estimation; personal communication networks; probability; telecommunication traffic; PCS system; handoff failure probability; handoff threshold value; high mobility calls; low mobility calls; microcells; multilevel threshold handoff algorithm; performance; prioritized handoff procedure; quality of service; traffic characteristics; velocity adaptive handoff algorithm; velocity codebook; velocity estimation method; Algorithm design and analysis; Interference; Microcell networks; Mobile antennas; Personal communication networks; Quality of service; Receiving antennas; Roads; Telecommunication traffic; Vehicles;
Conference_Titel :
Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity
Conference_Location :
London
Print_ISBN :
0-7803-3336-5
DOI :
10.1109/GLOCOM.1996.587613
