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Although solutions have been proposed for NAT traversal in UDP based P2P applications, TCP based NAT traversal still remains challenges due to the relatively complicated protocols. In this paper, we propose a Port Correlation Analysis and Prediction (PCAP) algorithm to predict the NAT allocated port number and a novel PCAP based TCP NAT traversal scheme to build successful P2P connections. We evaluate...
This paper proposes a fuzzy-logic-based rate adaption scheme named FRA in order to enhance the smoothness of TCP-friendly multicast congestion control (TFMCC). To alleviate oscillation of sending rate for TFMCC sender, FRA introduces five actions for adjusting rate and uses a fuzzy controller to decide which action should be taken according to the feedback information from CLR (current limiting receiver)...
IP Multimedia Subsystem (IMS) is a new network architecture for providing multimedia service in the next generation network. 3GPP R6 standards specified that both Internet Protocol version 6 (IPv6) and Session Initiation Protocol (SIP) are default protocols. So IMS network needs to interwork with the early deployed Internet Protocol version 4 (IPv4)-based IMS clients. In this paper, we introduce a...
The major wireless operators are actively migrating their networks from circuit switched networks to all packet (IP) based next generation networks. One of the key issues impeding the migration is the associated cost. Though managing the CAPEX (CAPital EXpenditures) and OPEX (OPerational EXpenditure) has been the focus of the operators, minimizing the cost from the perspective of system design has...
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