Title :
Adaptive Beacon Rate Adjusting mechanism for safety communication in cooperative IEEE 802.11p-3G vehicle-infrastructure systems
Author :
Feng, Yufei ; Du, Yingtian ; Ren, Zhanyang ; Wang, Zi ; Liu, Yu ; Zhang, Lin
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
fDate :
Oct. 31 2010-Nov. 3 2010
Abstract :
Cooperative active safety applications in WAVE employ periodic beacon broadcasting for status advertisement. High beacon rate enables each vehicle sense the traffic situation from its vicinity promptly. This timely information may assist the driver for safer driving experience. However, high beacon rate will congest the wireless medium due to the contention-based IEEE 802.11p MAC. In this paper, an Adaptive Beacon Rate Adjusting (ABRA) mechanism is proposed and studied. With the help of neural network and back propagation algorithm, a set of guide beacon rates can be obtained adaptively to decrease the performance deterioration caused by congestion. Extensive simulations validate that the proposed mechanism is effective.
Keywords :
3G mobile communication; backpropagation; neural nets; road safety; vehicular ad hoc networks; WAVE; adaptive beacon rate adjusting mechanism; back propagation algorithm; contention-based IEEE 802.11p MAC; cooperative IEEE 802.11p-3G vehicle-infrastructure systems; neural network; periodic beacon broadcasting; safety communication; status advertisement; Artificial neural networks; Delay; Quality of service; Safety; Training; Vehicles; IEEE 802.11p; WAVE; beacon rate adjusting; neural network;
Conference_Titel :
Communications (APCC), 2010 16th Asia-Pacific Conference on
Conference_Location :
Auckland
Print_ISBN :
978-1-4244-8128-6
Electronic_ISBN :
978-1-4244-8127-9
DOI :
10.1109/APCC.2010.5679988
