Power modulation: Application to inter-cell interference coordination

Abstract : In this work, a novel technique which allows every transmitter in an interference network to have global channel state information (CSI) is proposed. The key feature of the proposed technique is that each transmitter acquires global CSI purely through the available feedback channel (which is assumed here to be the received signal power). In the first step of the proposed technique, each transmitter uses several observations provided by the feedback channel to learn the channel gains perceived by its intended receiver. Secondly, this information is quantized, modulated, and transmitted to the other transmitters through the power levels used by the transmitters; the latter are indirectly observed through the received signal power. Hence, the interference is used as an implicit communication channel through which local CSI is exchanged. Once global CSI is acquired, it can be used to optimize any utility function which depends on it.
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Communication dans un congrès
EUSIPCO, Aug 2015, Nice, France. IEEE Proceedings of the 2015 EUSIPCO Conference, 2015, 〈http://www.eusipco2015.org/〉. 〈10.1109/EUSIPCO.2015.7362540〉
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Vineeth Varma, Samson Lasaulce, Chao Zhang, Raphaël Visoz. Power modulation: Application to inter-cell interference coordination. EUSIPCO, Aug 2015, Nice, France. IEEE Proceedings of the 2015 EUSIPCO Conference, 2015, 〈http://www.eusipco2015.org/〉. 〈10.1109/EUSIPCO.2015.7362540〉. 〈hal-01272491〉

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