Sparse Code Multiple access codebook design using Equiangular Tight Frames

Title: Sparse Code Multiple access codebook design using Equiangular Tight Frames
Creator: Hasan, Shah Mahdi; Mahata, Kaushik; Hyder, Md Mashud
Relation: IEEE International Conference on Communications (ICC). 2020 IEEE International Conference on Communications (ICC) (Dublin, Ireland 7-11 June, 2020)
Publisher Link: http://dx.doi.org/10.1109/ICC40277.2020.9148752
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: conference paper
Date: 2020
Description: Sparse Code Multiple Access (SCMA) is considered to be one of the potential non-orthogonal multiple access (NOMA) techniques mainly targeting uplink transmission to support massive connectivity. In this work, an efficient high dimensional uplink SCMA codebook design is proposed using the Equiangular Tight Frames. Codebook design problem is posed as construction of generalized Equiangular Tight Frames where mutual coherence among codewords are minimized toward the optimal bound. The minimization problem is handled using gradient-based alternating projection technique under average symbol energy constraint. An important feature of the proposed design is monotonically improved Bit Error Rate (BER) performance with scaling of the proposed codebook.
Subject: SCMA; codebook design; Equiangular Tight Frames; 5G; mMTC
Identifier: http://hdl.handle.net/1959.13/1438425
Identifier: uon:40603
Identifier: ISBN:9781728150895
Language: eng
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