Title :
A Framework for Modeling the Lifetime and Residual Energy Distribution in Wireless Networks
Author :
Ramachandran, Krishna ; Sikdar, Biplab
Author_Institution :
Dept. of ECSE, RPI, Troy, NY, USA
Abstract :
A number of important characteristics of wireless sensor networks such as the lifetime, connectivity and coverage are determined the residual power levels of the nodes in the network. This paper presents a general framework for modeling the availability of power at sensor nodes as a function of time. Models are developed for sensors with and without battery recharging and expressions are derived for the network lifetime as well as the distribution and moments of random variables describing the number of sensors with different levels of residual energy as a function of time. Finally, the effect of the packet arrival rates and a sensor´s geographical location are modeled.
Keywords :
wireless sensor networks; battery recharging; network connectivity; network lifetime; packet arrival rates; residual energy distribution; sensor nodes; wireless sensor networks; Batteries; Biological system modeling; Costs; Economic indicators; Energy consumption; Power system modeling; Random variables; Sensor phenomena and characterization; Wireless networks; Wireless sensor networks;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5425626
