Spatial Relation Expiration Time to Select Multipoint Relays in Smart City Environments

As future Internet and to generate smart cities, all physical and virtual objects around us must be able of communicating and connecting with each other. Wireless communication in Smart cities network has a scalability, stability and reachability limitations in terms of manageable network aptitude due to the environments that these communications act through are unstable. Mobile Ad-hoc Networks (MANETs) introduced new opportunities for network aptitude and capability for smart cities and environments due to the easy implementation and to the fastest and the well-organized way to create communication. Conversely, the mobility of nodes during routing is still challenging in such mobile environments. To tolerate the instantaneous adaptation of the integration and the exploitation of MANETs in smart city environments, an original solution has been suggested. The solution is a new mechanism to determine stable connected multipoint relay based on the spatial relation expiration time. The author studies the Spatial Relation Expiration Time (SRET) in MANETs using the spatial dependency between the neighbors. Spatial Relation Expiration Time is used to predict the remaining time that this spatial relation is available. The objective is to decrease principal effects that lead to more delay, more lost packets and more disconnecting of the network due to the unpredictable environment for smart city networks. The proposal has been evaluated by NS3 simulator and confirmed good results.