International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 07 | July 2023
p-ISSN: 2395-0072
www.irjet.net
Interference Mitigation using Adaptive Digital Beamforming for 5G Applications Bhavya V S1, Ketha Siva2, Dr. Arathi R Shankar3 1Post Graduate Student, Department of ECE, BMS College of Engineering, Bengaluru, India
2Member Research Staff, Central Research Laboratory, Bharat Electronics Limited, Bengaluru, India 3Associate Professor, Department of ECE, BMS College of Engineering, Bengaluru, India
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Abstract - Present and upcoming wireless communication
Several techniques have been developed for the data communication system to enhance signal transmission performance, raise the SINR, and adjust other associated parameters. In that case, the signal quality can be assessed by making reference to the antenna choice and the highly accurate beam strength estimation. Users can communicate utilizing the signal band in the 5G communication-based networking system that is available for data transmission at increased speeds from antenna signal propagation [3]. It is necessary for communication systems that are unable to connect with the user module to strengthen the signal by carefully choosing their antenna array. This can be done by using an optimization method to choose the optimal antenna and figure out the best DOA (Direction of Arrival) path to the device for higher SINR. By identifying the antenna parameters, the communication model's signal strength is improved [4]. The optimal choice of Direction path from the overall structure in estimated parameters was found using optimization methods. Additionally, it estimates the number of antennas with DOA characteristics that are ready to connect to the device and are distributed to users with the best antenna capacity match [5].
technologies requires high signal to noise ratio, gain, and signal intensity in order to reduce interference. Modern communication relies heavily on adaptive digital beamforming to improve desired signal reception while reducing sidelobe and interference effects. This study proposes a method for suppressing sidelobes, interference and to mitigate noise using adaptive digital beamforming for 5G applications based on the Minimum Variance Distortionless Response (MVDR) algorithm specially for the operating frequency range of 3.5GHz. The adaptive digital beamforming employing the MVDR algorithm will be extremely important in providing the seamless connection and variety of services that 5G promises to bring as it continues to develop and is more extensively adopted. The suggested solution takes advantage of the MVDR algorithm's adaptive properties to dynamically change the weights of an antenna array, altering the radiation pattern to direct the primary beam towards the desired signal source while dampening unwanted signals. The MVDR adaptive beamforming algorithm is applied towards the desired signals at baseband mainly to suppress sidelobes by introducing nulls in the direction of interference, which helps to reduce the sidelobes, mitigates interference and noise.
High data rate, high SNR, high signal integrity, and high bandwidth are essentially the end goals of a communication system network in current and future wireless communication technology. With an increase in the number of users in a communication system network, these characteristic performances decline. 5G technologies are being adopted to overcome these issues, and it is anticipated that they will significantly expand the use of the current communication infrastructure [6]. Additionally, it will enable connectivity between people and machines (the Internet of Things), enabling applications for remote healthcare, autonomous self-driving cars, and virtual and augmented reality (VR/AR), and more. By adopting spatial diversity, massive antenna array deployment also aids in reducing some of these issues and improving data throughput in wireless communication channels. Since the antenna array signals are integrated at the transceiver in mmWave application, the adoption of beamforming technology significantly enhances the channel propagation characteristics as well as the coverage area [7].
Key Words: Adaptive Beamforming, MVDR algorithm, Interference, Sidelobes,5G Communication. 1.INTRODUCTION The demand from customers for an effective communication system to support the seamless operation of daily activities and at work has accelerated the development of telecommunication technology. For instance, the transition from the 2nd Generation (2G) to the 3rd generation (3G) to the 4th generation (4G) is intended to enable the function of data transmission over the internet network on a mobile station (MS) device. The development and transition between one network technology from one generation to the next is intended with the aim of covering up shortcomings and developing technology from its predecessor generations [1]. More than one communication device is now connected to the network by some telecommunication service subscribers. In order to handle every communication activity from the user to the central network without any problems, we obviously need a data transmission technology system. Fifth Generation (5G) technology has been used to address this problem [2].
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Adaptive beamforming is the process of forming the antenna beam pattern using a Digital Signal Processor (DSP) algorithms. Because separate RF chains are needed for each
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