Title :
Security in Operational Wireless Sensor Networks
Author :
Chih-Chun Chang ; Muftic, S. ; Nagel, D.J.
Author_Institution :
George Washington Univ. Washington, Washington
Abstract :
This paper describes our strategy to operate WSN with or without security based on our measurements of energy consumption using CrossBow and Ember sensor nodes. It was found that the node microcontroller´s CPU operates for substantially longer times for both hashing and encryption operations compared to the time for handling messages without any security. However, the associated overall increased energy consumption is relatively insignificant. The longer high-power radio transmission times due to hashing were more costly. We provide design guidelines to apply security for energy limited WSN.
Keywords :
cryptography; microcontrollers; wireless sensor networks; CrossBow sensor node; Ember sensor node; WSN security; encryption operation; energy consumption; hashing operation; high-power radio transmission; microcontroller; operational wireless sensor networks; Batteries; Computer security; Costs; Cryptography; Data security; Energy consumption; Energy measurement; Microcontrollers; Sensor phenomena and characterization; Wireless sensor networks;
Conference_Titel :
Consumer Communications and Networking Conference, 2008. CCNC 2008. 5th IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1456-7
Electronic_ISBN :
978-1-4244-1457-4
DOI :
10.1109/ccnc08.2007.180
