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Multi-hop wireless broadcast is a critical component in Vehicular Ad-hoc Networks (VANET). Many VA NET applications, such as traffic data dissemination, utilize broadcast as a primary mode of communication. Thus creating efficient broadcast schemes is important for supporting practical VANETs. Multi-hop broadcast protocols are generally composed of two(More)
—Vehicular Ad-hoc NETworks (VANETs) are an emerging important type of wireless ad-hoc network. Unlike many other types of MANETs, VANET applications such as traffic data dissemination are inherently broadcast oriented and require communication protocols to be anonymous and scalable. Simple broadcast flooding satisfies these requirements, but its performance(More)
Multihop wireless broadcast is an important component in vehicular networks. Many applications are built on broadcast communications, so efficient routing methods are critical for their success. Here, we develop the Distribution-Adaptive Distance with Channel Quality (DADCQ) protocol to address this need and show that it performs well compared to several(More)
Broadcast is a critical component in ad-hoc wireless networks. Some vehicular network (VANET) applications in particular use broadcast communications extensively. VANETs exhibit a wide variety of node density and distribution patterns, so broadcast protocols designed to support these applications must be adaptive to those conditions. We show that the(More)
Multi-hop broadcast routing is a critical component in ad-hoc wireless networks. Vehicular ad-hoc network (VANET) applications for example use broadcast communications extensively. Efficient broadcast protocols are required to enable these applications. Multi-hop broadcast algorithms can roughly be classified as either topological or statistical.(More)
Multi-hop wireless broadcast is a critical component in ad-hoc wireless networks. Vehicular Ad-hoc Networks (VANET) in particular utilize broadcast as a primary communication mechanism in many applications. Because of their simplicity, statistical broadcasting methods have been adopted in several VANET broadcasting schemes. However, it is difficult to(More)
Multi-hop broadcast is an important component in ad-hoc wireless networks. Some vehicular network (VANET) applications in particular use broadcast communications extensively. We propose using the distance-to-mean method to facilitate these applications. The performance of this method depends heavily on the value of the decision threshold, and it is(More)
Here we propose an analytical model of energy usage hierarchical wireless sensor network protocols such as LEACH [1]. LEACH has been used as a foundation for much of the wireless sensor network research, so results addressing the underlying nature of these systems build understanding of a wide range of existing protocols. First, we derive the probability(More)
We present a framework for cross-layer optimization in small, resource-constrained systems which require a high degree of optimization. We argue that often these systems allow for a departure from conventional network stack design principles opening up broad opportunities for optimizations. We examine these new opportunities and propose a design strategy to(More)