4 research outputs found
Stochastic Geometry Modeling and Analysis of Finite Millimeter Wave Wireless Networks
This paper develops a stochastic geometry-based approach for the modeling and
analysis of finite millimeter wave (mmWave) wireless networks where a random
number of transmitters and receivers are randomly located inside a finite
region. We consider a selection strategy to serve a reference receiver by the
transmitter providing the maximum average received power among all
transmitters. Considering the unique features of mmWave communications such as
directional transmit and receive beamforming and having different channels for
line-of-sight (LOS) and non-line-of-sight (NLOS) links according to the
blockage process, we study the coverage probability and the ergodic rate for
the reference receiver that can be located everywhere inside the network
region. As key steps for the analyses, the distribution of the distance from
the reference receiver to its serving LOS or NLOS transmitter and LOS and NLOS
association probabilities are derived. We also derive the Laplace transform of
the interferences from LOS and NLOS transmitters. Finally, we propose upper and
lower bounds on the coverage probability that can be evaluated easier than the
exact results, and investigate the impact of different parameters including the
receiver location, the beamwidth, and the blockage process exponent on the
system performance
On Integrated Access and Backhaul Networks: Current Status and Potentials
In this paper, we introduce and study the potentials and challenges of
integrated access and backhaul (IAB) as one of the promising techniques for
evolving 5G networks. We study IAB networks from different perspectives. We
summarize the recent Rel-16 as well as the upcoming Rel-17 3GPP discussions on
IAB, and highlight the main IAB-specific agreements on different protocol
layers. Also, concentrating on millimeter wave-based communications, we
evaluate the performance of IAB networks in both dense and suburban areas.
Using a finite stochastic geometry model, with random distributions of IAB
nodes as well as user equipments (UEs) in a finite region, we study the service
coverage rate defined as the probability of the event that the UEs' minimum
rate requirements are satisfied. We present comparisons between IAB and hybrid
IAB/fiber-backhauled networks where a part or all of the small base stations
are fiber-connected. Finally, we study the robustness of IAB networks to
weather and various deployment conditions and verify their effects, such as
blockage, tree foliage, rain as well as antenna height/gain on the coverage
rate of IAB setups, as the key differences between the fiber-connected and IAB
networks. As we show, IAB is an attractive approach to enable the network
densification required by 5G and beyond.Comment: Revised manuscript in IEEE Open Journal of the Communications Societ
Stochastic Geometry Modeling and Analysis of Finite Millimeter Wave Wireless Networks
This paper develops a stochastic geometry-based approach for the modeling and analysis of finite millimeter wave (mm Wave) wireless networks where a random number of transmitters and receivers are randomly located inside a finite region. We consider a selection strategy to serve a reference receiver by the transmitter providing the maximum average received power among all transmitters. In our system model, we employ the unique features of mm Wave communications such as directional transmit and receive beamforming and different channels for line-of-sight (LOS) and non-line-of-sight (NLOS) links. Accordingly, deploying a blockage process suitable for mm Wave networks, we study the coverage probability and the ergodic rate for the reference receiver that can be located everywhere inside the network region. As key steps for the analyses, the distribution of the distance from the reference receiver to its serving LOS or NLOS transmitter and LOS and NLOS association probabilities are derived. We also derive the Laplace transform of the interferences from LOS and NLOS transmitters. Finally, we propose upper and lower bounds on the coverage probability that can be evaluated easier than the exact results, and investigate the impact of different parameters including the receiver location, the beamwidth, and the blockage process exponent on the system performance