Encryption and Power Consumption in Wireless LANs
N. Ruangchaijatupon, P. Krishnamurthy · 2001
Security enforcement in wireless communication is considered necessary because of the inherent vulnerability of radio transmissions to eavesdropping. Encryption is being employed in wireless devices before data are transmitted over the air at the MAC/physical layers and the application layer. Current implementations at the MAC/physical layers are not very secure and application layer encryption becomes essential. However, encryption is computationally intensive and consumes energy and computational resources that are limited in wireless devices.