Volume 15, Issue 1 (2015)                   MJEE 2015, 15(1): 9-14 | Back to browse issues page

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Moltafet M, Azmi P, Karimi Kelayeh A, Foruzesh M. Resource Allocation in SCMA-based System. MJEE. 15 (1) :9-14
URL: http://mjee.modares.ac.ir/article-17-9273-en.html
1- M.Sc. student, Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran Iran,
2- Full Professor, Department of Electrical and computer Engineering, Tarbiat Modares University, Tehran Iran
3- M.Sc. student, Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran Iran
Abstract:   (4711 Views)
In this paper, downlink resource allocation for a sparse code multiple access (SCMA) based heterogeneous  cellular networks (HCN) is investigated. The main aim of this paper is to obtain joint power allocation and codebook assignment to achieve the least total system transmit power. In this regard, the proposed objective function is formulated as total transmit power subject to users minimum rate requirement, total available power in each base station (BS), and SCMA constraint. To solve the proposed problem an iterative algorithm considering successive convex approximation (SCA) is applied. Also,convergence of the iterative method is investigated. In the simulation results the effectiveness of proposed resource allocation method are shown.
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Received: 2016/07/13 | Accepted: 2016/11/21 | Published: 2038/01/19

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