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Rafael Molina-Masegosa
Universidad Miguel Hernández de Elche
Scheduling (computing)Network packetIEEE 802.11pComputer networkComputer science
6Publications
3H-index
129Citations
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Publications 7
Newest
Most V2X (Vehicle-to-Everything) applications rely on broadcasting awareness messages known as CAM (Cooperative Awareness Messages) in ETSI or BSM (Basic Safety Message) in SAE standards. A large number of studies have been devoted to guarantee their reliable transmission. However, to date, the studies are generally based on simplified data traffic models that generate awareness messages at periodic intervals or with a constant message size. These models do not accurately represent the real gene...
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#1Rafael Molina-Masegosa (Universidad Miguel Hernández de Elche)H-Index: 3
#2Miguel Sepulcre (Universidad Miguel Hernández de Elche)H-Index: 15
Last. Javier Gozalvez (Universidad Miguel Hernández de Elche)H-Index: 23
view all 3 authors...
Cellular vehicle-to-everything (C-V2X) networks can operate without cellular infrastructure support. Vehicles can autonomously select their radio resources using the sensing-based semi-persistent scheduling (SPS) algorithm specified by the Third Generation Partnership Project. The sensing nature of the SPS scheme makes C-V2X communications prone to the well-known hidden-terminal problem. To address this problem, this paper proposes a novel geo-based scheduling scheme that allows vehicles to auto...
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#1Manuel Gonzalez-Martin (Universidad Miguel Hernández de Elche)H-Index: 1
#2Miguel Sepulcre (Universidad Miguel Hernández de Elche)H-Index: 15
Last. Javier Gozalvez (Universidad Miguel Hernández de Elche)H-Index: 23
view all 4 authors...
The C-V2X or LTE-V standard has been designed to support vehicle to everything (V2X) communications. The standard is an evolution of LTE, and it has been published by the 3GPP in Release 14. This new standard introduces the C-V2X or LTE-V Mode 4 that is specifically designed for V2V communications using the PC5 sidelink interface without any cellular infrastructure support. In Mode 4, vehicles autonomously select and manage their radio resources. Mode 4 is highly relevant since V2V safety applic...
8 CitationsSource
Dec 1, 2018 in MSN (Mobile Ad-hoc and Sensor Networks)
#1Rafael Molina-Masegosa (Universidad Miguel Hernández de Elche)H-Index: 3
#2Javier Gozalvez (Universidad Miguel Hernández de Elche)H-Index: 23
Last. Miguel Sepulcre (Universidad Miguel Hernández de Elche)H-Index: 15
view all 3 authors...
The 3GPP has released the C-V2X standard to support V2X (Vehicle-to-Everything) communications using the LTE sidelink PC5 interface. This standard includes two modes of operation, and this study focuses on the Mode 4. This mode does not require the support of the cellular infrastructure, and vehicles can autonomously select their sub-channels for their V2V transmissions. The adequate operation of C-V2X Mode 4 requires a careful configuration of its main parameters. This study analyzes the optimu...
12 CitationsSource
Aug 1, 2018 in VTC (Vehicular Technology Conference)
#1Rafael Molina-Masegosa (Universidad Miguel Hernández de Elche)H-Index: 3
#2Javier Gozalvez (Universidad Miguel Hernández de Elche)H-Index: 23
Last. Miguel Sepulcre (Universidad Miguel Hernández de Elche)H-Index: 15
view all 3 authors...
V2X deployments using IEEE 802.11p have already been announced, and the 3GPP has published the first Cellular V2X standard based on LTE-V. The limitations of IEEE 802.11p and LTE-V, and the increasing requirements of enhanced V2X applications, raise the question of whether existing V2X standards can provide the reliability levels required to support large scale deployments and the introduction of connected automated driving. Redundancy (two or more V2X links) can increase the reliability, but th...
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#1Rafael Molina-Masegosa (Universidad Miguel Hernández de Elche)H-Index: 3
#2Javier Gozalvez (Universidad Miguel Hernández de Elche)H-Index: 23
This article provides an overview of the long-term evolution-vehicle (LTE-V) standard supporting sidelink or vehicle-to-vehicle (V2V) communications using LTE's direct interface named PC5 in LTE. We review the physical layer changes introduced under Release 14 for LTE-V, its communication modes 3 and 4, and the LTE-V evolutions under discussion in Release 15 to support fifth-generation (5G) vehicle-to-everything (V2X) communications and autonomous vehicles' applications. Modes 3 and 4 support di...
92 CitationsSource
#2Javier GozalvezH-Index: 23
The 3GPP has recently published the first version of the Release 14 standard that includes support for V2V communications using LTE sidelink communications (referred to as LTE-V, LTE-V2X, LTE-V2V or Cellular V2X). The standard includes a mode (mode 4) where vehicles autonomously select and manage the radio resources without any cellular infrastructure support. This is highly relevant since V2V safety applications cannot depend on the availability of infrastructure-based cellular coverage, and tr...
39 CitationsSource
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