Geocast routing: Recent advances and future challenges in vehicular adhoc networks

Abstract

Recently, geocast routing (GR) has been extensively investigated for reliable and efficient dissemination of information due to increasing number of intelligent transport system (ITS) applications favoring geocasting. In this paper, a qualitative survey of recent protocols of GR and some precise future research issues have been provided. A functional and qualitative description of each considered protocols have been presented. All the considered protocols have been comparatively characterized. This comparative study leads us towards some future research challenges in GR.

Query-response geocast for vehicular crowd sensing

“…[10] Since BGR's purpose is to support crowd sensing applications in urban environments, we thus focus on the former group. T-TSG [11] warns vehicles after an accident.…”

An Agent Based Data Collection Scheme for Vehicular Sensor Networks

“…The initial delivery of the data collection request into the RSI from the remote data sink, and the routing of the collected data back to the data sink, are out of this paper's scope. Generally, these tasks can be achieved by geocast routing, which has been well studied in the literature (see [24] and references therein).…”

Geocasting in vehicular adhoc networks using particle swarm optimization

“…Next hop vehicle (NHV) selection is the most important task in geocasting due to number of constraints involved under vehicular traffic environment [12]. Various constraints involved in NHV selection are frequent topological changes, high interference, shadowing effects, limited forwarding direction which must follow road network etc.…”

“…Recently, Geocast Routing (GR) has witnessed intense research and become one of the most investigated choices for reliable and efficient dissemination of information among researchers [12]. The preference to GR in VANETs is attributed to the fact that in VANETs group of vehicles moving on road always shares geographical region and most of the Intelligent Transport Systems (ITS) applications such as traffic statistics sharing, emergency alarming, and geographic advertisement etc.…”

“…Efficient and reliable information distribution is one of the challenging tasks in VANETs due to highly dynamic network environment [11]. Recently, various geographic or position based routing protocols have been developed [12]. Most of the previous work in geocast routing in VANETs are based on traditional routing protocols of Mobile Adhoc Networks (MANETs).…”