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

Toward an Architecture for Monitoring Private Clouds

IEEE CTN Issue: January 2012
Cloud computing has emerged as a new model for service delivery and along with it several issues, most related to adoption, security, and management. Earlier adopters as well as potential users are faced with many management challenges including some affecting the business; e.g., vendor lock-in, while others are related to service operations; e.g. monitoring of network, storage, and computational resources. IEEE Communications Magazine