On Topology Optimization and Routing in Integrated Access and Backhaul Networks: A Genetic Algorithm-Based Approach
Artikel i vetenskaplig tidskrift, 2021

In this paper, we study the problem of topology optimization and routing in integrated access and backhaul (IAB) networks, as one of the promising techniques for evolving 5G networks. We study the problem from different perspectives. We develop efficient genetic algorithm-based schemes for both IAB node placement and non-IAB backhaul link distribution, and evaluate the effect of routing on bypassing temporal blockages. Here, concentrating on millimeter wave-based communications, we study the service coverage probability, defined as the probability of the event that the user equipments' (UEs) minimum rate requirements are satisfied. Moreover, we study the effect of different parameters such as the antenna gain, blockage, and tree foliage on the system performance. Finally, we summarize the recent Rel-16 as well as the upcoming Rel-17 3GPP discussions on routing in IAB networks, and discuss the main challenges for enabling mesh-based IAB networks. As we show, with a proper network topology, IAB is an attractive approach to enable the network densification required by 5G and beyond.

relay

node selection

topology optimization

5G NR

wireless backhaul

genetic algorithm

Network topology

tree foliage

(mmWave) communications

stochastic geometry

Optimization

densification

Integrated access and backhaul

coverage probability

Topology

3GPP

machine learning

Wireless communication

millimeter wave

IAB

routing

3GPP

Routing

germ-grain model

poisson point process

Resource management

blockage

Författare

Charitha Madapatha Madapathage Don

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Behrooz Makki

Ericsson AB

Ajmal Muhammad

Ericsson AB

Erik Dahlman

Ericsson AB

Mohamed-Slim Alouini

King Abdullah University of Science and Technology (KAUST)

Tommy Svensson

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

IEEE OPEN JOURNAL OF THE COMMUNICATIONS SOCIETY

2644-125X (eISSN)

Vol. 2 2273-2291

A flagship for B5G/6G vision and intelligent fabric of technology enablers connecting human, physical, and digital worlds (Hexa-X )

Europeiska kommissionen (EU) (101015956-Hexa-X), 2021-01-01 -- 2023-06-30.

Ämneskategorier

Datorteknik

Telekommunikation

Kommunikationssystem

DOI

10.1109/OJCOMS.2021.3114669

Mer information

Senast uppdaterat

2021-10-29