Summary
|
For Full-Text PDF, please login, if you are a member of IEICE, or go to Pay Per View on menu list, if you are a nonmember of IEICE. |
|
Prioritized Call Admission Design for Providing Video Telephone Services in WCDMA Networks Hyong Rock PARK Dongwoo KIM Een-Kee HONG Publication IEICE TRANSACTIONS on Communications Vol.E88-B No.2 pp.770-774 Publication Date: 2005/02/01 Online ISSN: DOI: 10.1093/ietcom/e88-b.2.770 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Network Keyword: video telephone services, prioritized call admission design, WCDMA networks, Full Text: PDF(224.7KB)>>
Summary: Video telephone service (VTS) is considered one of promising services provided in wideband CDMA (WCDMA) networks. Without a designated call admission policy, VTS calls are expected to suffer from relatively high probability of blocking since they normally have more stringent signal quality requirement than ordinary voice calls. In this letter, we consider a prioritized call admission design in order to reduce the blocking probability of VTS calls, which may encourage the users to access the newly-provided VTS in a more comfortable way. The VTS calls are given a priority by reserving a number of channel-processing equipments. With the reservation, the blocking probability of prioritized VTS calls can be reduced evidently. That of ordinary calls, however, is increasing instead. This letter provides a system model that counts the blocking probabilities of VTS and ordinary calls simultaneously, and numerically examines an adequate level of the prioritization for VTS calls. The results show that the prioritization level should be selected depending on received interference as well as bandwidth required for VTS. | |||||
|
