Coverage and Rate Analysis for Downlink HetNets Using Modified Reverse Frequency Allocation Scheme
Aneeqa Ijaz,Syed Ali Hassan,Syed Ali Raza Zaidi,Dushantha Nalin K. Jayakody,Syed Mohammad Hassan Zaidi +4 more
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TLDR
This paper presents a novel interference mitigation technique known as reverse frequency allocation (RFA), which provides an efficient resource allocation compared with the other state-of-the-art techniques.Abstract:
The deployment of heterogeneous networks (HetNets) inevitably demands the design of interference management techniques to elevate the overall network performance. This paper presents a novel interference mitigation technique known as reverse frequency allocation (RFA), which provides an efficient resource allocation compared with the other state-of-the-art techniques. RFA reverses the transmission direction of interferers, thereby minimizing the cross-tier interference. Eventually, better coverage as well as increased data rates are achieved by providing complementary spectrum to the macro and pico users. In this paper, we present a tractable approach for modeling HetNets under the proposed RFA scheme. Specifically, we employ well known tools from stochastic geometry to derive closed-form expressions for the coverage probability and rate coverage in two-tier cellular network employing RFA and its variants. The modeling is performed using two approaches; first, where the base stations and users are modeled as independent Poisson point processes (PPPs) and second, the interference is approximated using the fluid model. It is shown that the results obtained from the PPP model are accurate for higher values of path loss exponents, while the results from fluid model are useful for smaller values of path loss exponents. The plausibility of model is validated through the Monte-Carlo simulations and the network performance is evaluated in terms of coverage probability, coverage rate, and outage capacity. The results demonstrate that 2-RFA yields outage capacity gains of 13% as compared with the soft fractional frequency reuse scheme, whereas, the performance gains can be further improved by 14% by employing the proposed variants of RFA.read more
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Multiobjective Optimization in 5G Hybrid Networks
Muhammad Shahmeer Omar,Syed Ali Hassan,Haris Pervaiz,Qiang Ni,Leila Musavian,Shahid Mumtaz,Octavia A. Dobre +6 more
TL;DR: 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 and develops a model using tools from stochastic geometry to analyze the coverage, rate, area spectral efficiency, and EE of such a network.
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Energy-Aware Radio Resource Management in D2D-Enabled Multi-Tier HetNets
Syed Ahsan Raza Naqvi,Haris Pervaiz,Syed Ali Hassan,Leila Musavian,Qiang Ni,Muhammad Imran,Xiaohu Ge,Rahim Tafazolli +7 more
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Analytical evaluation of heterogeneous cellular networks under flexible user association and frequency reuse
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Interference Management in Ultra-Dense 5G Networks With Excessive Drone Usage
Muhammad Sajid Haroon,Fazal Muhammad,Ghulam Abbas,Ziaul Haq Abbas,Ahmad Kamal Hassan,Muhammad Waqas,Sunghwan Kim +6 more
TL;DR: This paper investigates the bottleneck uplink (UL) coverage performance of the MBS edge users in the presence of ICI and DI and uses decoupled association (DeCA) in place of coupled association to further improve UL signal-to-interference ratio.
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Coverage analysis of cell‐edge users in heterogeneous wireless networks using Stienen's model and RFA scheme
TL;DR: RFA is used as an interference management scheme together with Stienen's model to significantly improve SINR, enhance edge user coverage, and avoid sBS deployment near the mBS.
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