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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Lifeng Le Geng-Sheng Kuo |
| Copyright Year | 2007 |
| Description | Author affiliation: Beijing Univ. of Posts & Telecommun., Beijing (Lifeng Le; Geng-Sheng Kuo) |
| Abstract | The combination of the SIP-based service and peer-to-peer (P2P) can improve the performance of traditional client-server SIP system. However, current P2P SIP systems have many disadvantages. For example, node heterogeneity (e.g., bandwidth, CPU, storage and uptime) has not been considered enough which affects the scalability and service availability of P2P overlay; session setup latency is higher than that of traditional SIP system; and high cost is paid to maintain DHT overlays during a long idle uptime. In order to overcome these disadvantages, this paper proposes a novel hierarchical and breathing P2P SIP system. Its hierarchical overlay is composed of more than two suboverlays with different physical capability and system availability. Based on the hierarchical overlay, we propose a Node Virtualization Model that enables a node to share physical capability of powerful nodes in higher-level suboverlays. Suboverlays adopt breathing overlay model that enables a node to quit P2P overlay temporarily after a long idle uptime and rejoin P2P overlay when new SIP services are initiated on it. Based on the performance analysis and simulation results, our proposed system achieves better scalability and resource availability as well as shorter session setup latency, less bandwidth for DHT maintenance traffic and larger storage capacity than current P2P SIP systems. |
| Starting Page | 1887 |
| Ending Page | 1892 |
| File Size | 613980 |
| Page Count | 6 |
| File Format | |
| ISBN | 1424403537 |
| DOI | 10.1109/ICC.2007.314 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-06-24 |
| Publisher Place | UK |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Peer to peer computing Bandwidth Scalability Availability Delay Power system modeling Costs Performance analysis Analytical models Traffic control |
| Content Type | Text |
| Resource Type | Article |
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