Abstract:
Antenna selection methods have been proposed to increase the capacity of massive multiple-antenna systems. In this paper, first, a comparison is made between several comm...Show MoreMetadata
Abstract:
Antenna selection methods have been proposed to increase the capacity of massive multiple-antenna systems. In this paper, first, a comparison is made between several common antenna selection methods, and the best antenna selection method in terms of increasing transmission channel capacity and reducing the computational complexity is determined. Then, to improve downlink channel capacity in a cell served by a massive multiple-antenna transmitter, a two-phase scheduling scheme is proposed. First, in the user grouping and antenna selection phase, the users are divided into several groups, so that the sum of the groups capacities is maximal, then the best antennas among all antennas are determined for transmission to each group, according to the chosen antenna selection method. In the scheduling phase, the amount of time, dedicated for transmission to each group of users, in the downlink frame is obtained by solving an optimization problem such that the channel transmission capacity is maximized and the minimum quality requirement of users is satisfied. The simulation results show that the proposed two-phase scheduling scheme increases the capacity of the system compared to the case where only the antenna selection method is used.
Date of Conference: 05-07 July 2017
Date Added to IEEE Xplore: 23 October 2017
ISBN Information: