A high-capacity MAC protocol for UAV-enhanced RIS-assisted V2X architecture in 3D IoT traffic

Mao, Y, Yang, X, Wang, L, Wang, D, Alfarraj, O, Yu, K, Mumtaz, S ORCID: https://orcid.org/0000-0001-6364-6149 and Yu, FR, 2024. A high-capacity MAC protocol for UAV-enhanced RIS-assisted V2X architecture in 3D IoT traffic. IEEE Internet of Things Journal. ISSN 2327-4662

Preview

Text 1897909_Mumtaz.pdf - Post-print Download (2MB) | Preview

Abstract

With the development of internet of things (IoT) technology and its wide application in urban traffic, the next-generation vehicle-to-everything (V2X) communication network should support high-capacity, ultra-reliable, and low-latency massive information exchange to provide unprecedentedly diverse user experiences. The development of the sixth-generation (6G) mobile communication technology will pave the way for realizing this vision. Reconfigurable intelligent surfaces (RISs), a critical 6G technology, is expected to make a big difference in V2X communications when used in conjunction with unmanned aerial vehicles (UAVs), allowing for extremely increased communication capacity and reduced latency. We propose a UAV-enhanced RIS-assisted V2X communication architecture (UR-V2X) suitable for urban three-dimensional (3D) IoT traffic and design an adapted MAC protocol UR-V2X-MAC to accomplish communication resource allocation and scheduling. The UAVs are used as access points and resource allocation centers, while the RISs are used as passive relays to assist V2X communication in proposed architecture. To improve the performance of UR-V2X-MAC, we use a distributed optimization algorithm in the message report phase of the protocol to maximize the system capacity by allocating the transmit power and alternately optimizing the RIS phase shift matrix. We analyze the delay and system capacity characteristics under different parameter settings through theoretical derivation and protocol performance simulation. Analysis and simulation results are presented to demonstrate that UR-V2X-MAC achieves a reduction in communication delay and a significant increase in system capacity through detailed design and alternate optimization compared to the existing V2X MAC protocol and no-RIS case.

Item Type:	Journal article
Publication Title:	IEEE Internet of Things Journal
Creators:	Mao, Y., Yang, X., Wang, L., Wang, D., Alfarraj, O., Yu, K., Mumtaz, S. and Yu, F.R.
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
Date:	12 April 2024
ISSN:	2327-4662
Identifiers:	Number Type 10.1109/JIOT.2024.3387997 DOI 1897909 Other
Rights:	© 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Divisions:	Schools > School of Science and Technology
Record created by:	Melissa Cornwell
Date Added:	30 May 2024 12:54
Last Modified:	30 May 2024 12:54
URI:	https://irep.ntu.ac.uk/id/eprint/51485

Actions (login required)

Edit View

Statistics

Views

Downloads