Joint power optimization and scaled beamforming approach in B5G network based massive MIMO enabled HetNet with full-dupl
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Joint power optimization and scaled beamforming approach in B5G network based massive MIMO enabled HetNet with full-duplex small cells Malini Balachandran 1 & Noor Mohammed Vali Mohamad 1 Received: 30 April 2020 / Accepted: 2 September 2020 # Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Fifth generation (5G) mobile communication networks have the ability to deal with the growing need for increased data rates, decreased network latencies, low power consumption, seamless coverage, and massive connectivity while sustaining the high Quality of Service (QoS) at the subscriber’s end. The key drivers of beyond 5G (B5G) are anticipated to be the convergence of all the features of 5G and B5G becomes more heterogeneous with the different small cell access points and massive multiple-input multiple-output (massive MIMO). In this work, the macro base station enabled with massive MIMO technology and the small cell access points possessing the full-duplex communication ability in a heterogeneous network (HetNet) is investigated. The prime objective is to optimize the power utilization by employing scaled beamforming and power allocation techniques with reduced complexity while sustaining the QoS in a full-duplex massive MIMO enabled HetNet with small cells. The joint power optimization and scaled beamforming algorithm is used to maximize the sum rates with reduced power consumption when compared to multi-flow zero-forcing (MZF) beamforming. The complexity analysis is also carried out by optimizing the number of transmission antennas and users. Keywords B5G . Full-duplex . Massive MIMO . Small cell networks . Scaled beamforming . Power allocation
1 Introduction The emergence of new wireless devices and the everescalating demand for voice and data traffic indicates the need to evolve and meet the high capacity and coverage requirements of the wireless network. Cisco Visual Networking Index (VNI) estimates a sevenfold growth in the worldwide data traffic from 2017 to 2020 [1]. This necessitates the 5G wireless communication networks to introduce new technologies to address the high data rate, seamless coverage, high capacity demand with low power consumption, and maintaining QoS. The massive MIMO technology and dense heterogeneous networks (HetNet) have been identified as an inevitable solution to address the unprecedented capacity demand This article is part of the Topical Collection: Special Issue on P2P Computing for Beyond 5G Network and Internet-of-Everything Guest Editors: Prakasam P, Ajayan John, Shohel Sayeed * Noor Mohammed Vali Mohamad [email protected] 1
School of Electronics Engineering, Vellore Institute of Technology, Vellore, India
with better energy efficiency [2]. Massive MIMO is a technology where the macro base station is furnished with massive antennas to serve the clients concurrently at the same time and frequency resource. These massive antennas make sure to provide better signal energy focus on the anticipated users which results in high spectral efficiency (SE) and energy
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