DMCA
Collaborative vehicular content dissemination with directional antennas (2012)
| Venue: | IEEE Transactions on Wireless Communications |
| Citations: | 13 - 3 self |
BibTeX
@ARTICLE{Li12collaborativevehicular,
author = {Yong Li and Student Member and Zhaocheng Wang and Senior Member and Depeng Jin and Lieguang Zeng and Sheng Chen},
title = {Collaborative vehicular content dissemination with directional antennas},
journal = {IEEE Transactions on Wireless Communications},
year = {2012},
pages = {1301--1306}
}
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Abstract
Abstract—We study the performance of collaborative vehicular content dissemination, where the content is distributed within the network by vehicle-to-vehicle opportunistic communications and the vehicle nodes are equipped with directional antennas. Through analysing a large real-world vehicle trace, we adopt an accurate mobility model of Lévy-walk to set up the real-istic vehicular network simulation environment. Using a fluid approximation, we derive a theoretical model to depict the system performance of content dissemination time. The accuracy of the proposed analysis is confirmed by simulation results, which also show that the directional antenna performs better than the omni-directional antenna in our considered scenario, especially when the antenna beam is well scheduled with small beamwidth and high beam steering rate. Index Terms—Collaborative content dissemination, vehicular networks, Lévy-walk mobility, directional antennas. I.
Keyphrases
directional antenna collaborative vehicular content dissemination theoretical model accurate mobility model directional antenna performs antenna beam content dissemination time vehicular network vehicle-to-vehicle opportunistic communication le vy-walk mobility le vy-walk omni-directional antenna fluid approximation index term collaborative content dissemination vehicle node system performance high beam large real-world vehicle trace real-istic vehicular network simulation environment small beamwidth simulation result
