Link adaptation and power control with consumed energy...

H - Electricity – 04 – B

Patent

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Details

H04B 7/005 (2006.01) H04L 1/00 (2006.01)

Patent

CA 2634416

The invention relates to the control and adaptation of transmit parameters for wireless communication between a transmitter (TX) and at least one receiver (RX) to provide joint power and link adaptation. A basic idea of the invention is to col-lectively determine the transmit duration (T) and transmit power (P) of the transmitter based on minimization of a given objective function representative of total consumed energy, on both the transmitting side and the receiving side, with respect to transmit dura-tion and/or transmit power. In effect, this means that link transmit parameters are determined based on the energy consumption on both the transmitting side and the receiving side. In addition, both transmit power and transmit duration are varied, while minimizing overall consumed energy.

L'invention concerne la commande et l'adaptation de paramètres de transmission dans le cadre d'une communication sans fil entre un émetteur (TX) et au moins un récepteur (RX) à des fins de puissance conjointe et d'adaptation de la liaison. Cette invention part du principe qu'il faut déterminer la durée de la transmission (T) et la puissance de transmission (P) de l'émetteur à partir d'une minimalisation d'une fonction objective donnée correspondant à l'énergie totale consommée, tant coté émission que côté réception, sous l'angle de la durée de transmission et/ou de la puissance de transmission. Concrètement, cela revient à déterminer les paramètres de transmission pour la liaison en fonction de l'énergie consommée à la fois sur le versant émission que sur le versant réception. De plus, on fait varier à la fois la puissance et la durée de l'émission tout en réduisant l'énergie totale consommée.

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