Cross Layer Integrated Approach for Secured Broker Selection in Public/Subscribe for Ad Hoc Networks

Mobile ad-hoc network (MANET) basically, consists of collection of mobile hosts incorporating wireless interfaces. These mobile nodes forms a transitory autonomous network and do not base on fixed infrastructure or central administration, rather they work on the principle of self-organized interconnections among mobile nodes. The idea at the core of the MANET technology is that while in movement when a node comes inside the transmission range of neighboring nodes´, they can be detected by each other and can communicate directly. However for communication outside this range they have to depend on some other nodes to relay the messages. In fact, MANET´ node rely on the resources and services from other participating nodes. And when these services are being offered by many, the choice of selecting whom to use, plays an important role in adhoc networks. Additionally, the dynamic and vulnerable nature of ad-hoc network itself presents many new security and privacy challenges. Above all, securing the process of service discovery is one of them. Although much previous research has concentrated on service discovery in MANETs, not much effort has been done on the security side of service selection. This paper emphasize that secure service selection in MANETs has an intense effect on network performance. Specifically, we stress that in adhoc network where all the participants are self controlled, security is an essential aspect and the effective service selection can improve network throughput.