2009/06/01 by Mohsen Sardari, Faramarz Hendessi, Faramarz Fekri
Computer Science · Engineering · #Caching and Content Delivery #Coding (social sciences) #Computer network #Computer science #Cooperative Communication and Network Coding #Decoding methods #Dissemination #Distributed computing #Linear network coding #Network packet #Network topology #Node (physics) #Scheduling (production processes) #Telecommunications #Vehicular Ad Hoc Networks (VANETs) #Vehicular ad hoc network #Wireless #Wireless ad hoc network #cs.NI
paper · pdf · doi:10.1109/sahcn.2009.5168939
published as Proc. 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks SECON '09, 2009, 1-9
openalex publication_date 2009/06/01 · arxiv created 2010/01/20 · arxiv updated 2010/02/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this paper, we address the problem of distributing a large amount of bulk data to a sparse vehicular network from roadside infostations, using efficient vehicle-to-vehicle collaboration. Due to the highly dynamic nature of the underlying vehicular network topology, we depart from architectures requiring centralized coordination, reliable MAC scheduling, or global network state knowledge, and instead adopt a distributed paradigm with simple protocols. In other words, we investigate the problem of reliable dissemination from multiple sources when each node in the network shares a limited amount of its resources for cooperating with others. By using rateless coding at the Road Side Unit (RSU) and using vehicles as data carriers, we describe an efficient way to achieve reliable dissemination to all nodes (even disconnected clusters in the network). In the nutshell, we explore vehicles as mobile storage devices. We then develop a method to keep the density of the rateless codes packets as a function of distance from the RSU at the desired level set for the target decoding distance. We investigate various tradeoffs involving buffer size, maximum capacity, and the mobility parameter of the vehicles.