Fog Radio Access Networks (F-RAN) by Mugen Peng & Zhongyuan Zhao & Yaohua Sun

Author:Mugen Peng & Zhongyuan Zhao & Yaohua Sun
Language: eng
Format: epub
ISBN: 9783030507350
Publisher: Springer International Publishing

(6.1)

in which R k denotes the data rate of UE k, α k is involved to prioritize different UEs, C n represents the cost coefficient of AP n, and P 0n and P Tn are the static power and the load-dependent power, respectively. Without loss of generality, it assumes that .

The Communication Model

Let denote the beamforming vector for UE k and the channel state information vector for UE k. Then, the received downlink signal at UE k can be written as

(6.2)

in which x k represents UE k’s signal that is independent and identically distributed according to , and z k is the noise following distribution .

UE k’s data rate is given by

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