Non-Orthogonal Multiple Access with Spatial Modulation in Downlink Coordinated Multipoint Transmission

In this paper, a joint transmission coordinated multi-point based non-orthogonal multiple access (JT-COMP NOMA) combined with spatial modulation (SM), termed as JT-COMP NOMA-SM, is proposed to enhance capacity. User capacity and ergodic sum capacity (ESC) of M number coordinated multi-point base stations (COMP BSs) within N number of cells are analyzed by considering imperfect successive interference cancellation (SIC) and imperfect channel state information (CSI). The performances of the proposed syatem are compared with non-orthogonal multiple access (NOMA), and joint transmission coordinated multi-point combined with virtual user pairing based non-orthogonal multiple access (JT-COMP VP-NOMA) by both simulation and analysis. The results show that the proposed system has the same cell center user (CCU) capacity compared to JT-COMP VP-NOMA and a higher cell edge user (CEU) capacity than the other schemes. ESC of the proposed system outperforms the other schemes due to enhancing CEU capacity. Imperfect SIC and imperfect CSI may degrade capacity. The proposed system can maintain CEU capacity better than the other schemes if the number of cells is increased. It happens because SM works beyond Shannon upper bounds which can mitigate inter-cell interference (ICI).

READ FULL TEXT
research
03/26/2019

Virtual User Pairing Non-Orthogonal Multiple Access in Downlink Coordinated Multipoint Transmission

In this paper, joint transmission coordinated multipoint (JT-CoMP) is ex...
research
12/02/2018

Distributed Cluster Formation and Power-Bandwidth Allocation for Imperfect NOMA in DL-HetNets

In this paper, we consider an non-ideal successive interference cancella...
research
02/14/2020

Cooperative NOMA for Downlink Asymmetric Interference Cancellation

This letter advances the non-orthogonal multiple access (NOMA) technique...
research
12/09/2020

Transfer Reinforcement Learning for 5G-NR mm-Wave Networks

In this paper, we aim at interference mitigation in 5G millimeter-Wave (...
research
07/27/2020

Massive Access in Secure NOMA under Imperfect CSI: Security Guaranteed Sum-Rate Maximization with First-Order Algorithm

Non-orthogonal multiple access (NOMA) is a promising solution for secure...
research
09/23/2022

Outage Performance and Optimal Design of MIMO-NOMA Enhanced Small Cell Networks With Imperfect Channel-State Information

This paper focuses on boosting the performance of small cell networks (S...

Please sign up or login with your details

Forgot password? Click here to reset