Recent significant advances in self-interference (SI) cancellation techniques pave the way for the deployment of full-duplex (FD) wireless transceivers capable of concurrent transmission and reception on the same channel. Despite the promise to theoretically double the spectrum efficiency, FD prototyping in off-the-shelf chips of mobile devices is still at its infancy, mainly because of the challenges in mitigating SI to a tolerable level and of the strict hardware constraints. In this article, we argue in favour of embedding FD radios in on-board units (OBUs) of future vehicles. Unlike the majority of mobile devices, vehicular OBUs are good candidates to host complex FD transceivers because of their virtually unlimited power supply and processing capacity. Taking into account the effect of imperfect SI cancellation, we investigate the design implications of FD devices at the higher-layer protocols of next-generation vehicular networks and highlight the benefits they could bring with respect to half-duplex devices in some representative use cases. Early results are also provided that give insight into the impact of SI cancellation on vehicle-to-roadside communications, and showcase the benefits of FD-enhanced medium access control protocols for vehicle-to-vehicle communications supporting crucial road safety applications.

Full-Duplex Radios for Vehicular Communications

Campolo C
;
MOLINARO, Antonella;
2017-01-01

Abstract

Recent significant advances in self-interference (SI) cancellation techniques pave the way for the deployment of full-duplex (FD) wireless transceivers capable of concurrent transmission and reception on the same channel. Despite the promise to theoretically double the spectrum efficiency, FD prototyping in off-the-shelf chips of mobile devices is still at its infancy, mainly because of the challenges in mitigating SI to a tolerable level and of the strict hardware constraints. In this article, we argue in favour of embedding FD radios in on-board units (OBUs) of future vehicles. Unlike the majority of mobile devices, vehicular OBUs are good candidates to host complex FD transceivers because of their virtually unlimited power supply and processing capacity. Taking into account the effect of imperfect SI cancellation, we investigate the design implications of FD devices at the higher-layer protocols of next-generation vehicular networks and highlight the benefits they could bring with respect to half-duplex devices in some representative use cases. Early results are also provided that give insight into the impact of SI cancellation on vehicle-to-roadside communications, and showcase the benefits of FD-enhanced medium access control protocols for vehicle-to-vehicle communications supporting crucial road safety applications.
2017
VANETs
full-duplex
broadcasting
platooning
V2V
V2R
self-interference cancellation
5G
C-ITS
File in questo prodotto:
File Dimensione Formato  
CAMPOLO_2017_MCOM_FULL_editorial.pdf

non disponibili

Descrizione: Versione editoriale
Tipologia: Versione Editoriale (PDF)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 413.57 kB
Formato Adobe PDF
413.57 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
CAMPOLO_2017_MCOM_FULL_postprint.pdf

accesso aperto

Tipologia: Documento in Post-print
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 250.07 kB
Formato Adobe PDF
250.07 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12318/3420
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 50
  • ???jsp.display-item.citation.isi??? 43
social impact