Smart Phone and Next Generation Mobile Computing

Introduction to Smart Phone and Mobile Computing 13

respectively, whereas the IEEE 802.11 a standard uses the 5-GHz

unlicensed national information infrastructure (U-NII) band and

can deliver a data rate up to 54 Mbit/sec. Despite its growth in

the residential market and in some enterprises, many government

departments and large companies have banned the use of this tech-

nology due to security concerns; both the initial wired equivalent

privacy (WEP) and interim Wi-Fi protected access (WPA) protocols

have been proven to have serious security flaws [3,4]. IEEE has formed

several work groups to address these security issues, as well as other

open issues including quality of service and interference with other

wireless technologies operating at the same ...