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    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/55385


    Title: 雙網環境下藉由價格機制改善服務品質與提高廠商收益之研究
    Other Titles: A Pricing-Based Approach to Improve QoS and Increase Provider Revenue in UMTS/WLAN Network
    Authors: 張宏慶
    Contributors: 政治大學資訊科學系
    行政院國家科學委員會
    Keywords: 價格機制;廠商收益;雙網;服務品質(QoS);差別服務機制(DiffServ)
    Pricing;Provider Revenue;UMTS/WLAN;QoS;DiffServ
    Date: 2006
    Issue Date: 2012-11-12 11:01:54 (UTC+8)
    Abstract: 在未來異質網路的整合環境中,QoS (Quality of Service)的問題益形重要,而以現今的網路環境而言,最有可能是整合UMTS與WLAN的異質網路。在本計畫中,我們將以UMTS 與WLAN 的異質網路整合環境作為基礎,提出Pricing-Improved QoS 的觀念,結合Non usage-based pricing、Usage-based pricing、Static pricing 和Dynamic pricing 的優點;利用 DiffServ (Differentiated Services)機制劃分服務等級(service level),實際設計出使用者效用函數(utility function)與網路成本函數(cost function),並以第三級差別取價(Third-Degree Price Discrimination)與兩段訂價法(Two-Part Tariff)訂定價格。藉著價格機能(pricing),讓使用者表達其對服務等級的需求或期望,並使網路資源適當地分配給各種服務,避免資源浪費或錯置的情形,以滿足QoS 的需求並提高整體社會福利及增加廠商收益(provider revenue)。末了,我們將根據Voice over IP、Video Phone、Video Streaming、FTP 四種訊務模型,在以DiffServ 為基礎的UMTS/WLAN 網路架構下,利用模擬系統 .. 計算各服務等級的最佳使用者人數 .. 驗證各服務等級的頻寬配置是否合適 .. 驗證各服務等級的QoS 要求是否能被滿足 .. 驗證是否能有效提升廠商收益
    heterogeneous networks integration, and the most feasible integration is UMTS and WLAN as for present network environment. In this research, we would propose the concept of Pricing-Improved QoS which combine those advantages of Usage-based, Non usage-based, Static pricing, Dynamic pricing schemes, and the mechanism of differentiating service classes according to DiffServ (Differentiated Services). We would then design utility function and cost function, and determine the prices using Third-Degree Price Discrimination and Two-Part Tariff strategies. Under the pricing mechanism, users will show their expectations of service levels they need, and the service providers can thus allocate the network resources appropriately avoiding inefficient resource usages. We expect the proposed methodologies could help to meet the QoS requirements and increase overall social welfare and providers’ revenue. At the end, we will employ network simulator, using VoIP, video phone, video streaming, and FTP four distinct traffic models, to
    Calculate the optimal user number for each service class
    Verify the effectiveness of bandwidth allocation for each service class
    Verify whether QoS requirement for each service class can be meet
    Verify whether providers’ revenues will be increased
    Relation: 基礎研究
    學術補助
    研究期間:9508~ 9607
    研究經費:526仟元
    Data Type: report
    Appears in Collections:[資訊科學系] 國科會研究計畫

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