Authors: Jae Kyun Jung; Sang Hoon Lee; Lynn Choi
Addresses: School of Electrical Engineering, Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, Seoul, Korea ' School of Electrical Engineering, Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, Seoul, Korea ' School of Electrical Engineering, Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, Seoul, Korea
Abstract: Assuming global positioning system (GPS)-enabled mobile sensor nodes we propose a new geometric routing protocol called Starcast that is designed to efficiently support node mobility as well as location services for mobile sensor networks (MSNs). In addition to a geometric path, Starcast can also discover a non-geometric path to a destination by exploiting the path history of location updates. Thus, the routing void can be minimised by alternating the two. Moreover, Starcast employs two location-based optimisations to further reduce the overhead of on-demand route discovery on inevitable voids. The detailed NS-2 simulations demonstrate that Starcast can not only increase network performance but also reduce energy consumption compared with the existing protocols based on on-demand route discovery or a plain geometric routing.
Keywords: node mobility; mobile sensor networks; MSNs; geometric routing; MANETs; mobile ad hoc networks; energy efficiency; global positioning system; GPS; optimisation; routing voids; NS-2 simulation; network performance; energy consumption.
International Journal of Sensor Networks, 2016 Vol.22 No.3, pp.197 - 207
Received: 04 May 2013
Accepted: 14 Apr 2014
Published online: 04 Nov 2016 *