On the Energy and Spectral Efficiency Tradeoff in Massive MIMO-Enabled HetNets With Capacity-Constrained Backhaul Links

Hao, Yuanyuan; Ni, Qiang; Li, Hai; Hou, Shujuan

doi:10.1109/tcomm.2017.2730867

Cited by 55 publications

(41 citation statements)

References 35 publications

(88 reference statements)

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“…For example, the work in [10] derives tractable expressions for coverage and rate in a network with general fading. The authors in [11]- [14] analyzed multitier heterogeneous networks (HetNets). Predictions of site specific performance are given in [15].…”

Section: Introductionmentioning

confidence: 99%

Multiobjective Optimization in 5G Hybrid Networks

Omar

Hassan

Pervaiz

et al. 2018

IEEE Internet Things J.

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The increasing adoption of the Internet of Things has led to the need for systems with higher spectral and energy efficiency (EE) in order to enable communication. Larger data rate demands had led researchers to look at millimeter wave (mmWave) bands to boost network rates. This paper investigates the downlink performance of a three-tier heterogeneous network that consists of sub-6 GHz macrocells overlaid with small cells operating on both the mmWave and sub-6 GHz bands. A model is developed using tools from stochastic geometry to analyze the coverage, rate, area spectral efficiency, and EE of such a network. Various deployment strategies and their impacts on the considered metrics are studied. Simulation results are used to verify the validity of the proposed model.Index Terms-Blockage models, fifth generation (5G), hybrid heterogeneous networks (HetNets), Internet of Things (IoT), millimeter wave, stochastic geometry.

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Section: Introductionmentioning

confidence: 99%

Multiobjective Optimization in 5G Hybrid Networks

Omar

Hassan

Pervaiz

et al. 2018

IEEE Internet Things J.

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“…The blockage parameter, β, is 1/β = 141.4 meters [35]. We assume coefficients of energy efficiency of power amplifier as 1 = 2 = 3 = 0.38 [23], load independent circuit power as ρ 1 = 4 W, ∆ 1 = 4.8, ∆ 2 = 0, ∆ 3 = 2.08 × 10 −8 , Λ 1 = 1, Λ 2 = 9.5 × 10 −8 and Λ 3 = 6.25 × 10 −8 [29]. Load independent circuit power for small cell tiers is taken as ρ 2 = 13.6 W and ρ 3 = 13.6 W, respectively [37].…”

Section: Simulation and Numerical Resultsmentioning

confidence: 99%

“…It is assumed that the MBSs are provided with multiple antennas forming an array while the small cell BSs, legitimate users and eavesdroppers are equipped with a single omnidirectional antenna. Massive MIMO is adopted at the macro cells such that each MBS has N antennas that can communicate simultaneously with U users (N U ≥ 1) with equal power distribution among all users [23].…”

Section: System Modelmentioning

confidence: 99%

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Secrecy Spectrum and Energy Efficiency Analysis in Massive MIMO-Enabled Multi-Tier Hybrid HetNets

Umer

Hassan

Pervaiz

et al. 2020

IEEE Trans. on Green Commun. Netw.

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Massive multiple antenna systems in conjunction with millimeter (mmWave) communication have gained tremendous attention in the recent years owing to their high speed data delivery. However, security in these networks has been overlooked; thereby necessitating a comprehensive study. This paper analyzes the physical layer security performance of the downlink of a massive multiple-input multiple-output (MIMO)-based hybrid heterogeneous network (HetNet) where both mmWave and sub-6 GHz small cells coexist. Specifically, a tractable approach using stochastic geometry is proposed to analyze the secrecy outage probability, secrecy energy efficiency (SEE) and secrecy spectrum efficiency (SSE) of the hybrid HetNets. Our study further characterizes the impact of large antenna arrays, directional beamforming gains, transmit power, and cell density on the above mentioned secrecy performance measures. The results show that at low transmit power operation, the secrecy performance enhances for higher small cell density. It has also been observed that the higher directivity gains at mmWave cells lead to a drop in secrecy performance of the network; thus a tradeoff exists between better coverage or secrecy.This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/. This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication. Citation information: DOI 10.1109/TGCN.2019.2956433, IEEE Transactions on Green Communications and Networking complex solution for the protection of confidential information in complex wireless networks [8]. Particularly, PLS in massive MIMO-enabled hybrid HetNets with mmWave small cells is important since the aforementioned networks present the most common deployment scenario for the future 5G communication networks. This paper analyses the PLS in massive MIMO-enabled hybrid HetNets by digging into unique advantageous properties of massive MIMO and mmWave channel.

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“…6 There are many importance on the deployment of femtocells in regard to the frequency reuse for mitigating the interferences between the different tiers so as to enhance the network performance. 7 An OFDMA (both Long-Term Evolution and WiMAX) is the great amount of dynamically assigned time and frequency slots. 8,9 This significant growth in the modulability of resource allotment is both an advantage and a drawback.…”

Section: Introductionmentioning

confidence: 99%

Game theoretic frequency reuse approach in OFDMA femtocell networks

Ghosh

Jayakody

2018

Trans Emerging Tel Tech

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In this paper, we initially dealt with the issue of spectrum allocation among macro (or “licensed”) and femto (or “unlicensed”) users in an orthogonal frequency division multiple access femtocell network of noncooperative game theoretic frequency reuse approach. We formulate the difficulty based on spectrum bidding. Here, individual secondary users (SUs) create an auction for the amount of bandwidth and every primary user can share the frequency band among SUs by itself according to the intelligence from SUs without lowering its own performance. Here, we consider that the bidding is a noncooperative game and one of its solutions is a Nash equilibrium. The femto base stations are grouped into different cluster for mitigating the undesired interference among them. The game theoretical method deals with the intercluster frequency clashes. We exemplified a link between utility function and the number of players by noncooperative game theoretic approach to guide the spectrum sharing decision at the cell edges. The convergence of the development mechanism is rigorously scrutinized and extensive numerical outcomes are presented to illustrate their potential merits.

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On the Energy and Spectral Efficiency Tradeoff in Massive MIMO-Enabled HetNets With Capacity-Constrained Backhaul Links

Cited by 55 publications

References 35 publications

Multiobjective Optimization in 5G Hybrid Networks

Multiobjective Optimization in 5G Hybrid Networks

Secrecy Spectrum and Energy Efficiency Analysis in Massive MIMO-Enabled Multi-Tier Hybrid HetNets

Game theoretic frequency reuse approach in OFDMA femtocell networks

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