Link datarate based admission control in wireless networks

This paper presents a link data-rate based admission control mechanism for a wireless network using a transmit power allocation algorithm. The admission control mechanism uses the nodes´ link datarate requirements as an input parameter. Transmit power control enables the nodes to set their power levels such that the required link datarate requirements are met while minimizing the interference caused to other transmissions. The link datarate requirement of a node is converted to its signal strength requirement that is subsequently used for admission control. We establish the relationship between key parameters in admission control such as signal strength requirement, link datarate requirement, number of nodes in the system etc. The proposed algorithm is studied using analytic and simulation techniques to show that it enables the nodes to meet their respective link datarate requirements.