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MOBICOM
2006
ACM

Increasing broadcast reliability in vehicular ad hoc networks

9 years 6 months ago
Increasing broadcast reliability in vehicular ad hoc networks
Broadcast transmissions are the predominate form of network traffic in a VANET. However, since there is no MAC-layer recovery on broadcast frames within an 802.11-based VANET, the reception rates of broadcast messages can become very low, especially under saturated conditions. In this paper, we present an adaptive broadcast protocol that improves the reception rates of broadcast messages. We rely on the observation that a node in a VANET is able to detect network congestion by simply analyzing the sequence numbers of packets it has recently received. Based on the percentage of packets that are successfully received in the last few seconds, a node is able to dynamically adjust the contention window size and thus improve performance. Categories and Subject Descriptors: C.2.2 [Network Protocols]: Protocol architecture General Terms: Design, Performance
Nathan Balon, Jinhua Guo
Added 14 Jun 2010
Updated 14 Jun 2010
Type Conference
Year 2006
Where MOBICOM
Authors Nathan Balon, Jinhua Guo
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