Power Control by Interference Predictions for Wireless IP Networks*
نویسنده
چکیده
A Kalman-filter method for power control is proposed for broadband, packet-switched TDMA wireless networks. By exploiting the temporal correlation of co-channel interference, a Kalman filter is used to predict future interference power. Based on the predicted interference and estimated path gain between the transmitter and receiver, transmission power is determined to achieve a desired signal-to-interference-plus-noise ratio (SINR). A condition to ensure power stability in the packetswitched environment is established and proven for a special case of the Kalman-filter method. The condition generalizes the existing one where the path-gain matrix is assumed to be fixed, as for circuit-switched networks.
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