NGSON: Features, State of the Art, and Realization

IEEE CTN Issue: February 2012
The rapid deployment and expansion of the Internet has created both an opportunity as well as a challenge in terms of service delivery. The opportunity comes from the variety and global scale of value added applications that can be supported for users. The challenge comes from the difficulties of developing and deploying software to support these applications and users. Service Oriented Architecture (SOA) and Service Delivery Platform (SDP) were introduced to help with these issues, but lacked support for service delivery and QoS across different domains. IEEE Communications Magazine

An Analytical Energy Consumption Model for Packet Transfer over Wireless Links

IEEE CTN Issue: February 2012
Energy-efficient data communication is an important requirement in wireless networks. Reducing energy consumption in transceivers during data communication can extend the operational lifetime of battery-powered devices and save energy in a global scale. A fundamental step, however, is to accurately model the energy consumption for data communication over a wireless link. Without the use of such a model, any mechanism designed to be energy-efficient may not be optimal, and any analysis of energy-efficiency may only be a poor approximation. IEEE Communications Letters

On Distributed Multimedia Scheduling with Constrained Control Channels

IEEE CTN Issue: January 2012

Traditional multimedia scheduling approaches assume perfect control channels where each node has access to the knowledge of its neighbors. However, in practice the control channels are always constrained and nodes can only exchange limited information with their neighbors, e.g., the control packets are lost during the wireless transmission, and the node only has partial network information. In this case, existing distributed multimedia scheduling schemes cannot work efficiently. This paper investigates how imperfect neighbor information affects the multimedia scheduling, and reveals the relationship between the control gain and scheduling performance based on available network and multimedia information.

IEEE Transactions on Multimedia


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