METHODS AND APPARATUS FOR SUCCESSIVE INTERFERENCE CANCELLATION BASED ON TRANSMIT POWER CONTROL BY INTERFERING DEVICE WITH SUCCESS PROBABILITY ADAPTATION IN PEER-TO-PEER WIRELESS NETWORKS

摘要

PROBLEM TO BE SOLVED: To provide an ad hoc peer-to-peer communication network between wireless devices where a low priority first transmitter device adjusts its transmit power on the basis of a received transmission request response from a higher priority second receiver device.

SOLUTION: The first transmitter device broadcasts a first transmission request to a corresponding first receiver device and may receive a first transmission request response from a different second receiver device. The second transmission request response is sent by the second receiver device in response to a second transmission request from a second transmitter device. The first transmitter device calculates an interference cost to the second receiver device as a function of the received power of the first transmission request response. Transmission power is obtained as a function of the calculated interference cost and the transmission power of the first transmission request, the transmission power to be used for traffic transmissions corresponding to the first transmission request.

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