Coverage Analysis and Load Balancing in HetNets with mmWave Multi-RAT Small Cells

12/15/2017
by   Gourab Ghatak, et al.
0

We characterize a two tier heterogeneous network, consisting of classical sub-6GHz macro cells, and multi Radio Access Technology (RAT) small cells able to operate in sub-6GHz and millimeter-wave (mm-wave) bands. For optimizing coverage and to balance loads, we propose a two-step mechanism based on two biases for tuning the tier and RAT selection, where the sub-6GHz band is used to speed-up the initial access procedure in the mm-wave RAT. First, we investigate the effect of the biases in terms of signal to interference plus noise ratio (SINR) distribution, cell load, and user throughput. More specifically, we obtain the optimal biases that maximize either the SINR coverage or the user downlink throughput. Then, we characterize the cell load using the mean cell approach and derive upper bounds on the overloading probabilities. Finally, for a given traffic density, we provide the small cell density required to satisfy system constraints in terms of overloading and outage probabilities. Our analysis highlights the importance of deploying dual band small cells in particular when small cells are sparsely deployed or in case of heavy traffic.

READ FULL TEXT

page 22

page 25

research
09/16/2019

Coverage Analysis of Integrated Sub-6GHz-mmWave Cellular Networks with Hotspots

Deploying Sub-6GHz networks together with millimeter wave (mmWave) is a ...
research
10/11/2018

Accurate Characterization of Dynamic Cell Load in Noise-Limited Random Cellular Networks

The analyses of cellular network performance based on stochastic geometr...
research
12/14/2017

Analysis of Latency and MAC-layer Performance for Class A LoRaWAN

We propose analytical models that allow us to investigate the performanc...
research
05/08/2023

Performance Analysis of In-Band-Full-Duplex Multi-Cell Wideband IAB Networks

This paper analyzes the performance of the 3rd Generation Partnership Pr...
research
11/19/2018

Initial Cell Search and Selection for Load Balancing and Throughput Optimization in 5G Millimeter Wave Networks

The increasing adoption of the Internet of Things (IoT) requires careful...
research
03/02/2020

Stochastic Analysis on Downlink Performance of Coexistence between WiGig and NR-U in 60 GHz Band

The 60 GHz band (57-71 GHz) has been attracting considerable research in...
research
05/05/2023

Shaping Next-Generation RAN Topologies to Meet Future Traffic Demands: A Peak Throughput Study

Millimeter-Wave (mm-Wave) Radio Access Networks (RANs) are a promising s...

Please sign up or login with your details

Forgot password? Click here to reset