| Title | : | Dynamic Routing with Cross-Layer Adaptations for Rechargeable Wireless Sensor Networks |
| Speaker | : | Amitangshu Pal (Temple University, Philadelphia, USA) |
| Details | : | Wed, 9 Jan, 2019 12:00 AM @ A.M. Turing Hall (BS |
| Abstract: | : | Development of effective solutions for energy harvesting from renewable resources (sunlight, heat, vibrations etc.) is gaining increasing importance for achieving long-term reliable operations of wireless sensor networks (WSNs). All these renewable energy can have wide spatial and temporal variations due to natural (e.g. weather) and location specific factors (e.g. exposure to sunlight). We assume a large scale WSN that comprises of sensor nodes that are placed randomly in a given geographic area for a given monitoring application such as environmental monitoring or structural monitoring. Due to the random node placements, some nodes may be located in shadows whereas some may be receiving extended sunlight. In addition, nodes have different orientations, which affect the amount of irradiance collected by the solar panels. With the change in weather, the sun’s orientation and amount of solar power intake changes as well. This brings new challenges for developing schemes considering the spatio-temporal characteristics of the harvesting technique. We consider large-scale WSNs for data collection applications, where implementation of network-wide time synchronization is a significant challenge. Hence, it is difficult to apply synchronized duty cycling and scheduled transmissions in such networks, which are critical for avoiding energy wastage from overhearing. The complexity of this energy optimization problem in sensor networks arises due to the fact that it has to be addressed by network wide adaptations as opposed to independent adaptations at the nodes. The objective of this talk is to design networking protocols that control the energy consumption at the nodes to adapt to such spatial and temporal variations of energy resources. The key component of this talk will include the development of adaptive networking protocols that allow variable energy consumption where we have explored joint power control and routing protocols, multi-channel routing protocols etc. The adaptive schemes have also been tested and validated on real testbed using MICAz sensor motes.
Speaker Bio: Amitangshu Pal is currently a postdoctoral scholar and an Instructor in Computer and Information Sciences at Temple University. Previously he served as a Lecturer at UNC Charlotte from 2013-2014. He has completed his B.E. in CSE from Jadavpur University, India in 2008 and MS/PhD in Electrical and Computer Engineering from UNC Charlotte in 2013. His research interests include protocol design, modeling and performance analysis on multihop wireless networks, including wireless sensor and mesh networks, with emphasis on routing protocols and distributed algorithms. He has also worked on several problems on wavelength division multiplexed (WDM) optical networks, wireless-optical broadband access networks, data center networks, content centric networks, enterprise networks etc. (URL: https://astro.temple.edu/~tuf79640/index.html) |
