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Power consumption analysis of user-identity feedback

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2 Author(s)
Chan-Soo Hwang ; SAIT, Samsung Electron. Co. Ltd., Suwon ; Hichan Moon

User-identity feedback was proposed to achieve multi-user diversity while minimizing feedback load. This letter mathematically shows that the transmit-power consumption of the user-identity feedback converges to zero as the number of users increases. Numerical results in a Rayleigh fading channel show that the transmit-power saving is substantial even with small number of users.

Published in:

Communications Letters, IEEE  (Volume:13 ,  Issue: 2 )