A dynamic CAC scheme for the evaluation of channel utilisation of 3.5G cellular networks

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)62_Review of books or of software (or similar publications/items)Not applicablepeer-review

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Author(s)

  • K. L. Lam
  • H. Y. Tung
  • Y. T. Sun
  • K. N. Yung

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)1-7
Journal / PublicationHKIE Transactions Hong Kong Institution of Engineers
Volume14
Issue number2
Publication statusPublished - Jun 2007

Abstract

A dynamic Tri-Threshold Bandwidth Reservation (TTBR) Call Admission Control scheme has been developed to support 3.5G mobile cellular networks. In compliance with the UMTS, this scheme provides three kinds of services namely conversational calls, streaming data calls and interactive/ background calls. By adapting to the changing operation environment, the scheme supports the specific quality of service for each kind of service by dynamically adjusting three threshold values. A comparison to a formerly developed DTBR scheme has been made. It is concluded that the TTBR scheme has a superior performance than the DTBR counterpart. Being one of the most important QoS aspects in mobile communications, the channel utilisation of a 3.5G network based on the developed TTBR scheme is studied. Related important aspects including the handover rate, the traffic load, the threshold value and the performance on multimedia data calls are investigated. While the DTBR cannot fulfil the UMTS requirement, it is found that the TTBR scheme has a superior performance.

Research Area(s)

  • 3.5G, Call admission control (CAC), Channel allocation scheme, Quality of service (QoS), Wireless cellular network

Citation Format(s)

A dynamic CAC scheme for the evaluation of channel utilisation of 3.5G cellular networks. / Lam, K. L.; Tung, H. Y.; Tsang, K. F.; Ko, K. T.; Sun, Y. T.; Yung, K. N.

In: HKIE Transactions Hong Kong Institution of Engineers, Vol. 14, No. 2, 06.2007, p. 1-7.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)62_Review of books or of software (or similar publications/items)Not applicablepeer-review