✍ Scribed by David Tacconi; Daniele Miorandi; Iacopo Carreras; Francesco Chiti; Romano Fantacci
No coin nor oath required. For personal study only.
In this paper we propose a system architecture for enabling mobile nodes to query a largely deployed wireless sensor network in an intelligent transportation system scenario. We identify three different types of nodes in the network: mobile sinks (i.e. the nodes moving and querying the WSN), vice-sinks (i.e. nodes able to communicate directly with mobile sinks) and ordinary sensor nodes (i.e. nodes sensing a phenomenon and communicating in a multihop fashion). We present protocols and algorithms specifically tailored to such a scenario, in particular at the MAC and network layers. Such a reference architecture well covers situations in which WSNs deployed in a parking place or along a road, provide to cars information on the conditions of the surrounding environment. We introduce and analyse a simple geographic routing protocol and two different load balancing techniques. The performance of the proposed solutions is evaluated through extensive simulations. The simple geographic routing is compared to load balancing techniques. Results support the capability of the proposed solutions to enable the introduction of novel intelligent transportation system applications.
📜 SIMILAR VOLUMES
## Abstract A 50–60 GHz continuous wave (cw) millimeter wave (MMW) converted from optical signals was detected by using dielectric materials of various kinds for optical‐to‐radio frequency systems.The converted MMW signals were radiated inside a millimeter waveguide through dielectric materials cov