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| An Optimized Algorithm for Overload Control of SIP Signaling Network |
| Zhang Zai-long Sun Jian Li Jun Zhang Shun-yi |
| Institute of Information and Network Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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Abstract A typical flow for SIP message exchange is studied, reasons that cause performance degradation are mainly analyzed, and an optimized algorithm that randomly makes the decision of acceptance or rejection of every packet is proposed for overload control of SIP signaling network. The algorithm is verified and analyzed with simulation, and the results show that this solution can restrain throughput jitter, lower service refuse rate, reduce buffer queue length, shorten call setup time and better meet the demand on SIP signaling network under heavy load.
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Received: 30 March 2007
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Corresponding Authors:
Zhang Zai-long
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2008, Vol. 30 
