Title :
An incident warning system with dual frequency communications capability
Author :
Redmill, K.A. ; Fitz, Michael P. ; Nakabayashi, Shoichi ; Ohyama, Takashi ; Ozguner, Fusun ; Ozguner, Umit ; Takeshita, O. ; Tokuda, Kiyohito ; Zhu, Weijun
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
We have implemented a vehicle and traffic incident warning system. The system is capable of warning drivers of accidents, emergencies, and traffic conditions using a wireless communication system. Wireless communication is accomplished using two distinct wireless data links: a short range, high bandwidth link operating in the 5.8 GHz DSRC band providing ad-hoc networking and multi-hop data packet forwarding, and a long range, low bandwidth link operating in the 220 MHz ITS spectrum allocation providing a centralized base station cellular-like network. The system also provides basic vehicle-to-vehicle communication using short text messaging and JPEG image transmission, and vehicle-to-roadside communication for news, weather, and general traffic alerts.
Keywords :
accidents; ad hoc networks; alarm systems; cellular radio; road vehicles; traffic information systems; visual communication; wireless LAN; 220 MHz; 5.8 GHz; ad hoc networking; cellular network; distinct wireless data links; dual frequency communications; high bandwidth link; image transmission; multihop data packet forwarding; short text messaging; spectrum allocation; traffic alerts; traffic incident warning system; vehicle incident warning system; vehicle-roadside communication; vehicle-vehicle communication; wireless communication system; Alarm systems; Bandwidth; Base stations; Frequency; Image communication; Road accidents; Spread spectrum communication; Telecommunication traffic; Vehicles; Wireless communication;
Conference_Titel :
Intelligent Vehicles Symposium, 2003. Proceedings. IEEE
Print_ISBN :
0-7803-7848-2
DOI :
10.1109/IVS.2003.1212972
