01799nas a2200145   4500008004100000245010600041210006900147300001000216490000600226520120100232100002101433700002301454700001701477856015901494       2016                        eng d00aEfficient Mechanism and Performance Analysis of Routing   Protocols in VANETs for Realistic Scenarios0 aEfficient Mechanism and Performance Analysis of Routing Protocol  a20-490 v83 a<p class="rtejustify">Vehicular Ad Hoc Networks (VANETs) are considered as a special case of mobile Ad Hoc Networks (MANETs) and are recently gaining a great attention from the research community. The need for improved road safety, traffic efficiency and direct communi-cation along with the great complexity in routing, makes VANETs a highly challeng-ing field. Routing in VANETs has to adapt to special characteristics such as high speed and road pattern movement as well as high linkage break probability. In this work, we show that traditional MANET routing protocols cannot efficiently handle the challeng-es in a VANET environment and thus need further modifications. For this reason, we propose and implement an enhancement mechanism, applied to the GPSR routing pro-tocol that adapts to the needs of a VANET. The proposed mechanism’s performance is evaluated through simulation sets for urban and highway scenarios and compared to the performance of the most common MANET routing protocols adopted in VANETs. The proposed enhancement is shown to be considerably beneficial and it significantly outperforms the rest of the tested routing protocols for almost every topology setting</p>
1 aBouras, Christos1 aKapoulas, Vaggelis1 aTsanai, Enea  uhttp://telematics.upatras.gr/telematics/publications/efficient-mechanism-and-performance-analysis-routing-protocols-vanets-realistic-scenarios?language=en