title: A two-hop based adaptive routing protocol for real-time wireless sensor networks.
abstract: One of the most important and challenging issues in wireless sensor networks (WSNs) is to optimally manage the limited energy of nodes without degrading the routing efficiency. In this paper, we propose an energy-efficient adaptive routing mechanism for WSNs, which saves energy of nodes by removing the much delayed packets without degrading the real-time performance of the used routing protocol. It uses the adaptive transmission power algorithm which is based on the attenuation of the wireless link to improve the energy efficiency. The proposed routing mechanism can be associated with any geographic routing protocol and its performance is evaluated by integrating with the well known two-hop based real-time routing protocol, PATH and the resulting protocol is energy-efficient adaptive routing protocol (EE-ARP). The EE-ARP performs well in terms of energy consumption, deadline miss ratio, packet drop and end-to-end delay.
authors.affiliation: Department of ECE, University College of Engineering, Osmania University, Hyderabad, India.
authors.forename: Sandhya
authors.initials: S
authors.lastname: Rachamalla
authors.affiliation: Department of ECE, University College of Engineering, Jawaharlal Nehru Technological University, Hyderabad, India.
authors.forename: Anitha Sheela
authors.initials: AS
authors.lastname: Kancherla
keywords: Adaptive transmission power; Deadline miss ratio; End-to-end delay; Energy consumption; Real-time routing