支援整合性服務架構之資源分配策略與效能分析

Strategy and Performance Analysis of Resource Allocation for Integrated Service Architecture

曹杞龍(Chi-Long Tsao)

指導教授 ： 鍾添曜

元智大學/工程學院/電機與資訊工程研究所/碩士(1997年)

摘要

在本論文中我們提出了一個以虛擬連接樹(Virtual Connection Tree)為基礎的整合性移動通訊樹 (Integrated Mobile Connection Tree - IMCT)，來支援即時服務(Real-time Service)以及可靠性服務(Reliable Service)。在可靠性服務的架構中，為了保證移動時(Handoff)有頻寬可以使用，本論文訂出一套cell命名與比對的方法來做頻寬的保留與目的地的找尋，使整合性移動通訊樹(IMCT)能夠支援跨不同區域的移動(Inter-Switch Handoff)，並且能夠保證移動時(Handoff Guarantee)的頻寬，來達到較可靠性的服務(Reliable Service)。

配合這整合性的架構，本論文提出一套許可控制(Admission Control)的方法，來有效的管理頻寬，使得系統能提供一定水準的服務品質(Quality of Service - QoS)，並且不同型態的服務仍能保留其原有的特質。在論文中，我們也針對所提出的許可控制作系統模擬與數學模式分析。由模擬與分析結果得知，這樣的許可控制方法，對於可靠性服務的使用者，不但能提供較好的移動保證(Handoff Guarantee)，大幅度的降低移動時拒絕的機率(Handoff Blocking Probability)，提供較高的服務品質。同時也讓即時服務的使用者有較大的吞吐量(Throughput)。

關鍵字

整合性服務 ； 可靠性服務 ； 許可控制 ； 資源分配策略 ； 移動保證

並列摘要

In this thesis, we propose an Integrated Mobile Connection Tree (IMCT), based on the Virtual Connection Tree, to support inter-switch reliable and real-time handoff service. In order to provide inter-switch handoff service, a set of naming and location mapping methods is designed to enable adjacent cells finding for handoff channel reservation.

This thesis also proposes a set of admission control method to efficiently manage the use of bandwidth. The method allow the system to provide a different levels of quality of service (QoS) for different types of services. Finally, the analytical model and computer simulation are developed for the proposed admission control method. The results show that those admission control methods can not only provide better Handoff Guarantee for reliable service users, but also allow greater throughput for real-time service.

並列關鍵字

Integrated Service ； Reliable service ； Call Admission Control ； Resource Allocation ； Handoff Guarantee

參考文獻

[1] A.S.Acampora and M.Naghshineh, "An architecture and methodology for Mobile-executed handoff in cellular ATM networks," IEEE JSAC, Vol.12, pp.1365-75, Oct. 1994.

[2] Bora A. Akyol and Donald C. Cox, "Signaling Alternatives in a Wireless ATM Network , " IEEE JSAC, Vol.1, pp. 35-49, Dec. 1997.

[3] Bora A. Akyol and Donald C. Cox, "Rerouting for Handoff in a Wireless ATM," IEEE Personal Communication, Vol. 35, pp.26-33, Dec. 1996.

[4] M.Umehira, M.Nakura and H.Sato, A.Hanhimoto, "ATM Wireless Access for Mobile Multimedia: Concept and Architecture," IEEE Personal Communication Magazine, pp. 39-48, Oct. 1996.

[5] D.Raychaudhuri and Newman D.Wilson, "ATM-Based Transport Architecture for Multiservices Wireless Personal Communication Networks," IEEE JSAC, Vol.12, pp.1401-1414, Oct. 1992.