Fair Bandwidth Allocation in Diffserv Networks

• Item type: Journal(1)
• 公開日: 2004-12-15
• タイトル: Fair Bandwidth Allocation in Diffserv Networks
• タイトル / 言語: en
• タイトル: Fair Bandwidth Allocation in Diffserv Networks
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: 論文
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• その他タイトル / その他のタイトル: ネットワーク品質・制御
• 著者所属: Faculty of Science and Technology Keio University
• 著者所属: Faculty of Science and Technology Keio University
• 著者所属: Faculty of Science and Technology Keio University
• 著者所属: Tokyo University of Technology
• 著者所属(英): en
• 著者所属(英): Faculty of Science and Technology, Keio University
• 著者所属(英): en
• 著者所属(英): Faculty of Science and Technology, Keio University
• 著者所属(英): en
• 著者所属(英): Faculty of Science and Technology, Keio University
• 著者所属(英): en
• 著者所属(英): Tokyo University of Technology
• 著者名: Tomoya, Hatano; Hiroshi, Shigeno; Ken-IchiOkada; Yutaka, Matsushita
• 著者名(英): Tomoya, Hatano; Hiroshi, Shigeno; Ken-Ichi, Okada; Yutaka, Matsushita
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: The Assured Forwarding (AF) service of the IETF Diffserv architecture provides a qualitative service differentiation between classes of traffic. However different bandwidth is allocated between flows within the aggregate in AF service when TCP flows with different Round Trip Times (RTTs) are aggregated into one AF class. This unfair situation for each TCP flow should be solved. Main reason of unfair bandwidth allocation is TCP congestion control. In this paper we propose Fair Rate-conscious TCP (FR-TCP) to improve fairness of the bandwidth within the aggregate. FR-TCP (1) defines fairness and Fair Rate (FR) as minimum bandwidth of each aggregated flow notifies FR to sender TCP and (3) controls TCP congestion window based on FR. We evaluate proposed FR-TCP through computer simulations with Network Simulator version 2 (ns-2). The results show that FR-TCP controls congestion window to get bandwidth according to Fair Rate and allocates fair bandwidth efficiently within the aggregate. FR-TCP controls sending rate promptly where the number of flows is dynamically changing. Even though FR-TCP and the current TCP are heterogeneous FR-TCP showed the effectiveness.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: The Assured Forwarding (AF) service of the IETF Diffserv architecture provides a qualitative service differentiation between classes of traffic. However, different bandwidth is allocated between flows within the aggregate in AF service, when TCP flows with different Round Trip Times (RTTs) are aggregated into one AF class. This unfair situation for each TCP flow should be solved. Main reason of unfair bandwidth allocation is TCP congestion control. In this paper, we propose Fair Rate-conscious TCP (FR-TCP) to improve fairness of the bandwidth within the aggregate. FR-TCP (1) defines fairness and Fair Rate (FR) as minimum bandwidth of each aggregated flow, notifies FR to sender TCP and (3) controls TCP congestion window based on FR. We evaluate proposed FR-TCP through computer simulations with Network Simulator version 2 (ns-2). The results show that FR-TCP controls congestion window to get bandwidth according to Fair Rate and allocates fair bandwidth efficiently within the aggregate. FR-TCP controls sending rate promptly where the number of flows is dynamically changing. Even though FR-TCP and the current TCP are heterogeneous, FR-TCP showed the effectiveness.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AN00116647
• 書誌情報: 情報処理学会論文誌; 巻 45, 号 12, p. 2773-2781, 発行日 2004-12-15
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-7764