Mobile Information Systems / 2019 / Article / Alg 3

Research Article

User Association and Small-Cell Base Station On/Off Strategies for Energy Efficiency of Ultradense Networks

Algorithm 3

User association strategy algorithm.
(1)Initialization:
(2); ;
(3)for 1 ≤ k ≤ K do
(4)if and
(5)Associate user k with the MBS;
(6)end if
(7)end for
(8)for 1 ≤ i ≤ M do
(9)Generate the candidate list for BS i;
(10)for
(11)Calculate the degrees of freedom of user k;
(12)Find user k which has minimal degrees of freedom, ;
(13)Calculate , ;
(14);
(15)Associates user with BS , ;
(16)Update ;
(17)if
(18)User k (1 ≤ k ≤ K) deletes the BS in its list ;
(19)end if
(20)end for
(21)end for
(22)until all users associate with BSs.

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