<Table> <Tr> <Td> </Td> <Td> This article does not cite any sources . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (January 2008) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article does not cite any sources . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (January 2008) (Learn how and when to remove this template message) </Td> </Tr> <P> Power control, broadly speaking, is the intelligent selection of transmitter power output in a communication system to achieve good performance within the system . The notion of "good performance" can depend on context and may include optimizing metrics such as link data rate, network capacity, outage probability, geographic coverage and range, and life of the network and network devices . Power control algorithms are used in many contexts, including cellular networks, sensor networks, wireless LANs, and DSL modems . </P> <P> Transmit Power Control is a technical mechanism used within some networking devices in order to prevent too much unwanted interference between different wireless networks (e.g. the owner's network and the neighbour's network). </P>

What is power control centre and its purpose
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