Generally, organic and organometallic materials containing π-conjugated chains are considered as promising candidates for nonlinear optical applications. In this work, we report on the third order nonlinear optical response of π-conjugated azo-conjugated azo-iminopyridine photoactive ligands containing electron donating or electron…

This chapter addresses aspects of roadside unit (RSU)-assisted message authentication, in which resource-rich RSUs assist nearby vehicles to authenticate the messages they received. It proposes an RSU aided message authentication scheme, termed RAISE. In RAISE, each vehicle first anonymously authenticates…

Mobile Ad-hoc Networks (MANET) and more specifically their vehicular variant (VANET) have to deal with fast changing channel conditions, specifically in urban areas. Routing protocols that have to build end to end paths over such volatile links typically react to link failure. In this paper…

In this paper, we present a modified position-based routing scheme called Intersection Dispatch-based VANET Routing(IDVR) protocol focusing on the needs of in-time information delivery and emergency message dissemination in urban scenarios. There are two primary contributions to enhancing VANET performance…