A Review on Wireless Mobile Communication Systems Generations and Integration

Computers, computational devices and data acquisition systems are confined at a location. Captive data has limited utility. Data communication among devices, for shared usage and further processing, revolutionized the world through Information and Communication Technologies. Data communication systems piggy backed on the telecommunication network and went on with it from wireless to wireline domain. GPRS/EDGE, EVDO/WCDMA, mobile WiMAX/LTE are the three generations of mobile wireless access technology domains in the local area. The backhaul transport system consists of optical fibre links and nodes with route switching systems called Routers. Routers also acts as add/drop nodes where data processing devices, called servers, are connected which serves application services data to user community. Pure wireless data communication networks has also been evolved as wi-fi network which covers very small area but provide very large bandwidth and functions in ISM band. Wi-Fi networks are considered equivalent to fourth Generation access network. The generation of technologies has been designed based on commitments of data throughputs and environmental conditions. The present paper analyses the throughputs available in practical conditions for GPRS, EDGE, EVDO, WCDMA and WiMAX. The paper also discusses integration of all the three generations in a heterogeneous environment. The 3GPP recommendations for machine type communications with cellular network as backhaul has been discussed as part of 5G network.