22-03-2014, 03:39 PM
SEMINAR ON Mobile Internet Connectivity
INTRODUCTION
WHAT IS IT?
Technology that facilitates internet access by enabling the user to access the internet while away from their LAN of their institution.
Technology that allows users to connect to the internet with high data rates than home-use broadband connections
TYPES OF M.I.C
Global system for mobile communication(GSM):for voice communications and small data transfer
High speed circuit switched data(HSCSD):allows GSM for faster data transfer(4 times)
General packet radio services(GPRS):to give increased data rates, charging based on the amount of data transfer
Third generation(3G) mobile:increased data rates(maximum upto 2mbps) and wide range of services
Enhanced data GSM environment(EDGE):co-exists with GSM. Allow GSM operators for 3G spectrum providing users a data rate upto 554mbps
TYPES OF M.I.C
Public access WLAN:enable users to access internet in localised ‘hotspots’ via a WLAN access card and a PDA or laptop
Linked public access WLANS :to link number of public access WLANS for high speed access
Public access WLAN and mobile telecommunication convergences:allows users / devices to swap between a telecommunication technology (eg. GPRS, 3G) and PAWLAN to enjoy the highest available data rate, depending on their geographical location
HOW DOES M.I.C WORK?
HSCSD: BASED ON GSM AND CREATED TO MEET THE DATA TRANSFER RATE LIMITATIONS OF GSM
CAN ACHIEVE MAX DATA TRANSFER RATE OF 38.4Kbps
BASED ON CIRCUIT SWITCHED TECHNOLOGY, SO USER ARE CHARGED FOR THE TIME DATA TAKES TO DOWNLOAD RATHER THAN AMOUNT OF DATA
GPRS: A PACKET SWITCHED-BASED TECHNOLOGY
THEORETICALLY MUCH HIGHER DATA-TRANSFER RATES THAN GSM OR HSCSD
USERS ARE CHARGES ACCORDING TO THE AMOUNT OF DATA SENT OR RECEIVED RATHER THAN THE TIME TAKEN TO DOWNLOAD
DATA TRANSFER RATE UPTO 115Kbps
ISSUES IN CONTRACTS AND EQUIPMENTS
COST OF ACCESS DEVICES AND SUBSCRIPTIONS
COMMERCIALLY AVAILABILITY OF TECHNOLOGIES
N/W DATA RATES
N/W RANGE AND COVERAGE
DEVICES
PRICE
NETWORK SERVICE PROVIDER
SECURITY
COMPATIBILITY ISSUES
REMOTE ACCESS
SUPPORT
TRAINING
BATTERY LIFE
CONCLUSION
Although mobile internet connectivity has many advantages and disadvantages to its side, it provides a greater chance for compatibility and portability of services with a varieties of flavours.