Outage Probability Analysis for Two-Antennas MISO-NOMA Downlink with Statistical CSI

Li, Shenhong; Derakhshani, Mahsa; Chen, Chung Shue; Lambotharan, Sangarapillai

doi:10.1109/globecom38437.2019.9014301

Cited by 5 publications

(1 citation statement)

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“…Systematic results verified the superiority of the hybrid scheme over the non user-pairing schemes. In [9], under assumption of statistical channel state information (CSI), authors have deduced a closed form formula for outage probability in downlink MISO-NOMA system when two antennas are considered at the base station. Outage formulas have been derived based on PDF and CDF of the distribution ratio for the beamforming.…”

Section: Introductionmentioning

confidence: 99%

Power Optimization Analysis using Throughput Maximization in MISO Non-Orthogonal Multiple Access System

Gaballa

Abbod

Jameel

2021

2021 IEEE Globecom Workshops (GC Wkshps)

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This paper analyzes the power optimization for a downlink multi-input single-output non orthogonal multiple access (MISO-NOMA) system. Power coefficients are optimized in order to maximize the sum throughput of the system users based on the total transmitted power and Quality of service (QoS) constraints. First, we formulate a simple expression for Signal to interference noise ratio (SINR) for each user in MISO-NOMA system, then an analysis for the optimization problem and the considered constraints to prove the concavity of the objective function is presented. Lagrange function and Karush-Kuhn-Tucker (KKT) optimality conditions are utilized to derive the optimal power coefficients. Simulations are conducted and optimization solver is used to investigate the improvement achieved when power coefficients are optimized compared to fixed power scheme. Simulation results are conducted in terms of sum-rate, outage probability, SIC error and users' individual rates. Results revealed that optimized power scheme is more satisfactory than fixed power scheme for far user than near user and both schemes are superior compared to conventional orthogonal multiple access (OMA) scheme.

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Section: Introductionmentioning

confidence: 99%