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This paper considers the user pairing algorithm for LTE (Long Term Evolution) femtocell uplink V-MIMO (Virtual Multiple Input Multiple Output) Systems, and propose a new simulated annealing based bit error rate pairing scheduling (SA-BPS) algorithm. The SA-BPS uses Round Robin (RR) criterion to decide the first user, and simulated annealing (SA) algorithm with objective function of bit error rate (BER) is suggested to decide the pairing users. Simulation results show that the proposed SA-BPS algorithm outperforms the conventional SA algorithm in terms of BER performance. Moreover, as a growth control coefficient is used to control the growth of average BER of users in the pairing group, rapid user BER deterioration can be prevented by adopting a proper coefficient .

A Novel User Pairing Algorithm for Lte Femtocell Uplink