Subchannel selection methods for 3GPP C-V2X networks by considering vehicular mobility

Meng-Shiuan Pan () and Shao-Wei Kao
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Meng-Shiuan Pan: National Taipei University of Technology
Shao-Wei Kao: Tamkang University

Telecommunication Systems: Modelling, Analysis, Design and Management, 2024, vol. 86, issue 3, No 8, 503-518

Abstract: Abstract The 3GPP vehicle-to-everything (C-V2X) technology is a key solution to provide communication services for applications of intelligent transportation systems (ITS). According to the C-V2X specification, vehicles are allowed to communicate with each other without the help of cellular networks and can select subchannels (i.e. radio resources) by themselves. However, this design will induce subchannel collisions because of the mobility of vehicles. This work aims to relieve the aforementioned problem. We propose a cooperative subchannel selection (CoSS) scheme and a localized subchannel selection (LoSS) scheme, which consider vehicular mobility to prevent subchannel collisions. Based on the collected information, CoSS predicts possible subchannel collisions due to vehicles’ location changes. On the other hand, LoSS avoids subchannel collisions by organizing the usage of subchannels based on vehicles’ relative moving speeds. The simulation results indicate that the proposed schemes can effectively reduce subchannel collision ratio and increase packet delivery ratio for the network.

Keywords: Cellular vehicle to everything (C-V2X); Subchannel selection; Semi-persistent scheduling (SPS); Vehicular communications (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11235-024-01138-1

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