Title :
Resilient P2P multimedia exchange in a VANET
Author :
Qadri, N. ; Fleury, M. ; Altaf, M. ; Rofoee, B.R. ; Ghanbari, M.
Author_Institution :
Sch. of Comp. Sci. & Electron. Eng., Univ. of Essex, Colchester, UK
Abstract :
Multimedia exchange within a Vehicular Ad Hoc Network (VANET) may be facilitated by exploiting the peer-to-peer (P2P) paradigm. Urban VANETs are characterized by restricted vehicle mobility, driver actions, and bunching at obstacles, leading to wireless interference and broken links. Similarly P2P communication relies on distributed sources which are intermittently available. However, routing packets over multiple hops and multiple paths still results in packet losses, resulting in poor quality reconstructed video at a receiver. This paper proposes a slice compensation scheme employing spatial Multiple Description Coding to provide error resilience as a solution to these problems. Results show constant good quality video despite increasing packet loss ratios.
Keywords :
ad hoc networks; driver information systems; image reconstruction; peer-to-peer computing; road vehicles; video coding; video streaming; P2P communication; broken links; error resilience; good quality video; multiple hops; multiple paths; packet losses; peer-to-peer paradigm; poor quality reconstructed video; resilient P2P multimedia exchange; routing packets; slice compensation scheme; spatial multiple description coding; urban VANET; vehicle mobility; vehicular ad hoc network; wireless interference; Ad hoc networks; Decoding; Displays; Driver circuits; Interference; Resilience; Road vehicles; Streaming media; Vehicle driving; Video sequences; VANET; error resilience; peer-to-peer; video streaming;
Conference_Titel :
Wireless Days (WD), 2009 2nd IFIP
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5660-4
Electronic_ISBN :
978-1-4244-5662-8
DOI :
10.1109/WD.2009.5449710