Near-field self-interference cancellation and quality of service multicast beamforming in full-duplex

2016 ◽  
Author(s):  
Fei Wu ◽  
Shihai Shao ◽  
Youxi Tang
Author(s):  
Yanxia Liang

In evolving fifth generation (5G), some demands that to be addressed are improved data rate, increased capacity, decreased latency and better quality of service. Heterogeneous networks (HetNets) is considered as an effective way to meet these prime objectives. Deployment of HetNets faces a number of challenges, among which interference management is of much importance. This chapter has summarized the major challenges and solutions of interference management. Interference cancellation, avoidance and coordination are discussed in detail, including enhanced intercell Interference Coordination (eICIC), Coordinated Multi-point Transmission (CoMP) et al. In addition, the future challenges of interference management have also been presented.


Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2768
Author(s):  
Asmaa Amer ◽  
Abdel-Mehsen Ahmad ◽  
Sahar Hoteit

In this paper, the interplay between non-orthogonal multiple access (NOMA), device-to-device (D2D) communication, full-duplex (FD) technology, and cooperation networks is proposed, and a resource allocation problem is investigated. Specifically, a downlink FD cooperative NOMA-based cellular system with underlaying D2D communications is proposed, where, in each NOMA group, the strong user assists the weak user as an FD relay with imperfect self interference (SI) cancellation. In terms of reaping spectral efficiency benefits, the system sum rate is to be maximized by optimizing channel allocation. This optimization is based on quality of service (QoS) constraints of D2D pairs and cellular users (CUs), power budget of base station and strong user (cooperative phase), and successive interference cancellation (SIC) constraints. Since the maximization formulated problem is computationally challenging to be addressed, a two-sided stable many-to-one matching algorithm, based on Pareto improvement, performs sub-channel assignment. Extensive simulations are implemented to demonstrate the system performance indicated by different metrics.


Author(s):  
Yanxia Liang

In evolving fifth generation (5G), some demands that to be addressed are improved data rate, increased capacity, decreased latency and better quality of service. Heterogeneous networks (HetNets) is considered as an effective way to meet these prime objectives. Deployment of HetNets faces a number of challenges, among which interference management is of much importance. This chapter has summarized the major challenges and solutions of interference management. Interference cancellation, avoidance and coordination are discussed in detail, including enhanced intercell Interference Coordination (eICIC), Coordinated Multi-point Transmission (CoMP) et al. In addition, the future challenges of interference management have also been presented.


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