Date Added: Mar 2013
Wireless services have the highest demand in wireless and internet world. Mobile phones are rapidly becoming the preferred means of personal communication. Every generation technology has some platform for its development as a reason. 1G was based on analog signaling whereas 2G on low-band digital data signaling. The 3G technology was developed to overcome the faults of 1G & 2G technologies. 3G finds application in wireless voice telephony, mobile Internet access, fixed wireless internet access, video calls and mobile TV. The 4G system provides mobile ultra-broadband, internet access with very high speed data rate.