Accurate spectral efficiency analysis for non orthogonal multiple access

2017 ◽  
Author(s):  
Pongsatorn Sedtheetorn ◽  
Tatcha Chulajata
Keyword(s):  
Spectral Efficiency ◽  
Multiple Access ◽  
Efficiency Analysis

Power allocation scheme and spectral efficiency analysis for downlink non‐orthogonal multiple access systems

2017 ◽  
Vol 11 (5) ◽  
pp. 537-543 ◽  
Author(s):  
Wenbo Cai ◽  
Chen Chen ◽  
Lin Bai ◽  
Ye Jin ◽  
Jinho Choi
Keyword(s):  
Power Allocation ◽  
Spectral Efficiency ◽  
Multiple Access ◽  
Efficiency Analysis ◽  
Allocation Scheme

Subcarrier and Power Allocation Algorithm for Spectral Efficiency Maximization in Superposition Coding OFDMA Systems

2015 ◽  
Vol 24 (05) ◽  
pp. 1550061
Author(s):  
Mateus de Paula Marques ◽  
Taufik Abrão
Keyword(s):  
Power Allocation ◽  
Spectral Efficiency ◽  
Time Complexity ◽  
Multiple Access ◽  
Optimization Problem ◽  
Frequency Division ◽  
Superposition Coding ◽  
Ofdma System ◽  
Transmission Strategy ◽  
Throughput Gain

This paper addresses the optimization problem on subcarrier and power allocation of orthogonal frequency division multiple access (OFDMA) system under spectral efficiency (SE) metric when deploying superposition coding (SC) transmission strategy. An algorithm with polynomial time complexity, of the order of (UN log 2(N)) has been proposed for sub-optimal SE maximization. Results indicate that the system SE increases with the use of SC technique. Besides, the throughput gain with SC adoption increases when the number of users (U) approaches the number of subcarriers (N) available in the system.

Uplink Spectral Efficiency Analysis of Decoupled Access in Multiuser MIMO HetNets

2018 ◽  
Vol 67 (5) ◽  
pp. 4289-4302 ◽  
Author(s):  
Ran Li ◽  
Kai Luo ◽  
Tao Jiang ◽  
Shi Jin
Keyword(s):  
Spectral Efficiency ◽  
Efficiency Analysis ◽  
Multiuser Mimo

scholarly journals Spectral efficiency analysis of multi-cell multi-user massive MIMO over channel aging

2020 ◽  
Vol 14 (5) ◽  
pp. 811-817
Author(s):  
Yuanxue Xin ◽  
Pengfei Shi ◽  
Xinjiang Xia ◽  
Xinnan Fan
Keyword(s):  
Spectral Efficiency ◽  
Massive Mimo ◽  
Efficiency Analysis
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