11/11/2015 – Talk by Moshin Jafri

Title:  Underwater Wireless Sensor Networks: Applications, Advances and Research challenges
Time: 13:00
Location: Meeting Room, building Zeta
Type: Survey
Speaker: Moshin Jafri
Abstract: Underwater Wireless Sensor Networks (UWSNs) have several applications such as sea mine detection and seismic monitoring. UWSNs consist of a large number of sensors and vehicles, deployed to transmit sensed data to the base station. They monitor swarms of underwater vehicles in environmental and military applications by exploiting their reconfigureability. In this talk, we discuss about the organizational architecture of UWSNs and the state of the art of various networking facets related to UWSNs. This talk serves as a summary of existing protocols, providing inspiration for the growth of underwater networks. We also outline the recent advancements in this area by focusing on the lower strata of the communication stack, and envision future trends. Current research ranges from low-power algorithms and modulations to energy-aware routing and MAC protocols. We highlight the key challenges such as high error rate, low network throughput and high energy consumption for data transmission. Furthermore, high propagation delay, Doppler shifts and time-varying multi-path effects constitute major research subjects, which require reliable communication systems in order to coordinate multiple devices, either mobile or stable.