scholarly journals A Game Theoretic Interference Management Scheme in Full Duplex Cellular Systems under Infeasible QoS Requirements

2019 ◽  
Vol 11 (7) ◽  
pp. 156 ◽  
Author(s):  
Ali Y. Al-Zahrani
Keyword(s):  
Interference Cancellation ◽  
Single Channel ◽  
Minimum Energy ◽  
Interference Management ◽  
Research Work ◽  
Cellular Systems ◽  
Full Duplex ◽  
Intercell Interference ◽  
Minimum Energy Consumption ◽  
Game Theoretic

Several emerging mobile applications and services (e.g., autonomous cars) require higher wireless throughput than ever before. This demand stresses the need for investigating novel methods that have the potential to dramatically increase the spectral efficiency (SE) of wireless systems. An evolving approach is the Single-channel full duplex (SCFD) communication where each node may simultaneously receive and transmit over the same frequency channel, and, hence, this could potentially double the current SE figures. In an earlier research work, we derived a model of the signal to interference plus noise ratio (SINR) in an SCFD-based cellular system with imperfect self interference cancellation, and investigated interference management under feasible QoS requirements. In this paper, game theoretic results are exploited to investigate the intercell interference management in SCFD-based cellular networks under infeasible QoS requirements. The investigation starts with a game formulation that captures two different cases. Then, the existence and uniqueness of the Nash equilibrium point are established. After that, a computationally efficient distributed algorithm, which realizes best effort and fair wireless services, is designed. The merit of this scheme is that, when the QoS requirements are feasible, they will be achieved with minimum energy consumption. Results of extensive simulation experiments are presented to show the effectiveness of the proposed schemes.

scholarly journals Self-Interference Cancellation-Based Mutual-Coupling Model for Full-Duplex Single-Channel MIMO Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Pawinee Meerasri ◽  
Peerapong Uthansakul ◽  
Monthippa Uthansakul
Keyword(s):  
Interference Cancellation ◽  
Mutual Coupling ◽  
Single Channel ◽  
Mimo Systems ◽  
Mimo System ◽  
Coupling Model ◽  
The Self ◽  
Full Duplex ◽  
Channel System ◽  
Interference Signals

The challenge of a full-duplex single-channel system is the method to transmit and receive signals simultaneously at the same time and on the same frequency. Consequently, a critical issue involved in such an operation is the resulting self-interference. Moreover, for MIMO system, the full-duplex single-channel system is subjected to the very strong self-interference signals due to multiple transmitting and receiving antennas. So far in the pieces of literature, there have not been any suitable techniques presented to reduce the self-interference for full-duplex single-channel MIMO systems. This paper initially proposes the method to cancel the self-interference by utilizing the mutual-coupling model for self-interference cancellation. The interference can be eliminated by using a preknown interference, that is, the mutual-coupling signals. The results indicate that the channel capacity performance of the proposed technique can significantly be improved due to the reduction of the self-interference power. The measurement results indicate that the proposed MIMO system can suppress the self-interference and mutual-interference signals with the reduction of 31 dB received power.

Integrated Technology Based on Resource and Environment Attributes for Workshop Planning and Production Operation

2011 ◽  
Vol 255-260 ◽  
pp. 2914-2918
Author(s):  
Hua Zhang ◽  
Gang Zhao ◽  
Zhi Gang Jiang ◽  
Yan Hong Wang ◽  
Ming Xiao
Keyword(s):  
Manufacturing Process ◽  
Minimum Energy ◽  
Research Work ◽  
Green Manufacturing ◽  
Production Operation ◽  
Environmental Benefit ◽  
Integrated Technology ◽  
Minimum Energy Consumption ◽  
Resource And Environment ◽  
Workshop Planning

In this paper, the integrated technology based on resource and environment attributes is presented for the workshop planning and production operation. Applying this integrated technology, a demonstration workshop of thermoelectrical valve manufacturer has been constructed to meet the demands of enterprise development. On a principle of green planning, the workshop structure and partition function, the devices layout and the scheduling mode aiming at the minimum energy consumption and noise yield are rebuilt on the base of the present manufacturing process and devices in a representative manufacturer. In this research work, the actual production data of the manufacturer is gathered, arranged, formatted and quantified to build a resource and environment attribute database for the conventional manufacturing process. The key of the integrated technology is to model the full life cycle production for the typical products in the workshop. Via the attribute analysis of the resource consumptions and environment impacts, some adaptive processes of green manufacturing and several prototypes of process device are offered for the respective process of the real production in the workshop. The integrated technology for the workshop planning and production operation is entirely realized and an environmental benefit is gained remarkably.

scholarly journals Dual Feeding Antenna for Performance Enhancement of Next-Generation of Mobile Networks against Self–Interference

2020 ◽  
Vol 9 (6) ◽  
pp. 140-147
Keyword(s):  
Wireless Communication ◽  
Mobile Networks ◽  
Interference Cancellation ◽  
Communication Systems ◽  
Single Channel ◽  
Full Duplex ◽  
Wireless Communication Systems ◽  
Next Generation ◽  
International Telecommunication Union ◽  
Resonance Frequencies

Actually, the interference phenomena appear in all current wireless communication systems. Generally, conventional wireless communication systems use two separate channels; one of them for transmitting and the other one for receiving. Achieving single channel full duplex (FD) represents one of the key challenges for the implementation of 5G. Single channel FD permits the capability of wireless communication system to transmit and get concurrently on the identical channel, as well as the assurance of an efficient utilization of the current spectrum. With this newest technology, another sort of interference, which is called self–interference, will be generated. Therefore, self–interference cancellation strategies have an awesome solution for the development of the next generation. Passive and active cancellation techniques can be used to remedy such type of interference. In this regard, a dual feeding antenna approach is regarded as passive cancellation. This paper is concerned with this type of self-interference cancellation. A patch antenna is simulated and tested for two resonance frequencies; 2.45 and 28 GHz. Both of these frequencies are frequency channel candidates proposed by international telecommunication union (ITU) for the fifth generation of mobile networks.

Interference Management in Heterogeneous Networks

2021 ◽  
pp. 346-382
Author(s):  
Yanxia Liang
Keyword(s):  
Quality Of Service ◽  
Heterogeneous Networks ◽  
Interference Cancellation ◽  
Interference Management ◽  
Data Rate ◽  
Interference Coordination ◽  
Intercell Interference ◽  
Fifth Generation ◽  
Future Challenges

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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