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Combined CAC Scheme Supporting Multiple Services with 3G W-CDMA DownLink Power Allocation
Jeong-Ho KIM Joo-Young YANG MinYoung CHUNG
IEICE TRANSACTIONS on Communications
Publication Date: 2007/05/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Radio Communications
CAC, multiple services, W-CDMA,
Full Text: PDF(180.5KB)>>
The downlink call admission control (CAC) scheme we call the combined CAC scheme is proposed to improve the call blocking for the 3rd (3G) generation W-CDMA system. The blocking probability of attempted calls would increase if a large number of users tries to place calls in a hot spot area. In this situation, the proposed scheme can mitigate the degradation of the GoS (grade of service) of multiple services by using the available radio channels of the neighboring cells and enhance the channel capacity by about 20% for the blocking probability of 1% under the given example condition of voice service.