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- W2783703428 abstract "The problem of joint sub-channel, power control and antenna selection in the uplink of OFDMA networks is investigated. The corresponding optimization problem is a non convex mixed integer non-linear problem(MINLP). To tackle the problem, an iterative two-step optimization problem is devised. First,~Having fixed the selected antenna as well as the associated power of each user,~a sub-channel assignment problem using the so-called Hungarian method is proposed. Second, the joint power and antenna selection problem is extended into a more elegant form through adding a penalty term to the objective function forcing the relaxed boolean variables associated with antenna selection problem to take binary values. To this end, the problem is restated as a difference of two concave function (DC programming) and is effectively solved in an iterative manner. The foregoing procedure is iteratively repeated until approaching a fixed network throughput. Simulation results demonstrate the superiority of the proposed method w.r.t. the exhaustive search with fixed power control mechanism." @default.
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- W2783703428 date "2018-01-08" @default.
- W2783703428 modified "2023-09-27" @default.
- W2783703428 title "Joint Resource Allocation and Antenna Selection In the Uplink of OFDMA Networks" @default.
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