Voice over IP in Wireless Heterogeneous Networks

Voice over IP in Wireless Heterogeneous Networks

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The requirements for good quality VoIP communications are difficult to achieve in a time-varying environment due to channel errors and traffic congestion and across different systems. The provision of VoIP in wireless heterogeneous networks requires a set of time-efficient control mechanisms to support a VoIP session with acceptable quality. The focus of Voice over IP in Wireless Heterogeneous Networks is on mechanisms that affect the VoIP user satisfaction while not explicitly involved in the media session. This relates to the extra delays introduced by the security and the signaling protocols used to set up an authorized VoIP session and to the disruption caused by the user mobility during the session. Voice over IP in Wireless Heterogeneous Networks thus investigates and proposes cross-layer techniques for realizing time-efficient control mechanisms for VoIP: signaling, mobility and security.Guaranteeing host mobility with quality of service is one of the main challenges in heterogeneous wireless systems. As voice over Internet protocol (VoIP) communications increase and are being extended to mobile networks, it is important toanbsp;...

Title:Voice over IP in Wireless Heterogeneous Networks
Author: Hanane Fathi, Shyam Chakraborty, Ramjee Prasad
Publisher:Springer Science & Business Media - 2008-10-20

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