TDD frame design for interference handling in mobile IAB networks

Monteiro, Victor Farias; Lima, F. Rafael M.; Moreira, Darlan C.; Sousa, Diego Aguiar; Maciel, Tarcísio F.; Makki, Behrooz; Shreevastav, Ritesh; Hannu, Hans

doi:10.1109/globecom48099.2022.10001454

Cited by 2 publications

(2 citation statements)

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“…The frequency distribution problem has also been studied in different forms to avoid interference between devices. In [10], a mobile IAB (mIAB) scenario is considered. The proposed solution is to mute the MT or DU to avoid interference.…”

Section: B Related Workmentioning

confidence: 99%

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Frequency Reuse in IAB-based 5G Networks using Graph Coloring Methods

Matthieu

Fabian

Papadopoulos

et al. 2022

2022 Global Information Infrastructure and Networking Symposium (GIIS)

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Integrated Access and Backhaul (IAB) is a new standard for multi-hop 5G networks. It allows to use cellular frequencies for both backhaul and access purposes. Furthermore, wireless backhauling reduces deployment costs for cellular network densification compared to fiber. However, the fact millimeter Wave (mmWave) frequencies have shorter range and considering the additional interference from backhaul links, the deployement of such a solution is a complicated issue. In our vision, a solution for frequency allocation using a graph coloring approach is key in improving performance. In this paper, we propose a semicentralized algorithm where the IAB-Donor computes the pairs of interfering nodes in the network to determine conflicting frequency usage. Nodes are then allocated specific bands and can locally adjust them to communicate with their children. Simulation results show that the proposed solution is more than 50% efficient in terms of throughput compared to a centralized allocation by link coloring.

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Section: B Related Workmentioning

confidence: 99%

“…These antennas are cheaper to produce and may allow the deployment of networks at lower cost [15]. Moreover, working with directional antennas may prove more difficult in supporting gNBs with continuous mobility as in future mIAB networks [10].…”

Section: A Motivationsmentioning

confidence: 99%