Mobile Internet Connectivity

SOFTWARE DEVELOPMENT LIFE CYCLEMOBILE INTERNET CONNECTIVITY
Mobile Internet Connectivity
MOBILE INTERNET CONNECTIVITY
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
NATIONAL INSTITUTE OF SCIENCE & TECHNOLOGY
TYPES OF M.I.C
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
LINKED PUBLIC ACCESS WLANS
GSM :A CIRCUIT SWITCHED-BASED TECHNOLOGY MAINLY FOR VOICE TRANSMISSION AND TO CARRY DATA SUCH AS TEXT TO ACCESS EMAIL AND THE INTERNET.
LIMITED DATA RATES UPTO 9.6Kbps
SLOW COMMERCIAL INTERNET ACCESS
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
HOW DOES M.I.C WORK?
MOBILE DEVICES FOR GPRS
MODE CLASS:CLASS A SUPPORTS GPRS AND OTHER GSM SERVICES,SUCH AS SMS AND VOICE,SIMULTANEOUSLY
CLASS B CAN MONITOR GSM AND GPRS CHANNELS SIMULTANEOUSLY, BUT ONLY ONE SERVICE AT A TIME
HIGHER THE CLASS , THE FASTER THE UPLOAD CAPABILITIES OF A DEVICE
3G MOBILE :A SET OF STANDARDS ALLOWS MIC ROAMING AT ENHANCED SPEED
PACKET MODE TECHNOLOGY ALLOWS VOICE, TEXT AND MULTIMEDIA SERVICES ON ONE DEVICE
SPEED RANGING FROM 64Kbps TO 384Kbps/2Mbps
EDGE: ENHANCES GSM N/Ws AT 3G DATA RATES
DATA RATES UPTO 384Kbps IN WIDE AREA AND UPTO 554Kbps IN LOCAL AREA
PUBLIC ACCESS WLANs: CONNECTED TO INTERNET VIA A WIRED TECHNOLOGY CONNECTION
RANGE AROUND 100 MTRS, DATA RATES MORE THAN 4 TIMES OF 3G N/W
LINKED PUBLIC ACCESS WLAN: BY OVERLAPPING THE WLAN CELLS TO BUILD LARGER WLANs
PORTABILITY OF DEVICES AND SERVICES
OFFERS A HIGH DEGREE OF COMPATIBILITY AND INTER-OPERABILITY WITH SERVICES
USERS CAN ACCESS THEIR INTRANET AND MAIL SERVICES WHEN AWAY FROM THEIR INSTITUTION
DISADVANTAGES COMPARED TO FIXED LINE INTERNET CONNECTIVITY
DUE TO PORTABILITY OF DEVICES, AVAILABILITY OF INFORMATION ON SCREEN IS LESS
SLOWER DOWNLOADIND AND UPLOADING DATA RATES
DATA RATES DECREASES AS THE DISTANCE FROM BASE STATION INCREASES
RELIABILITY OF ACCESS IN RURAL AND MOUNTAIN REGIONS
EXPENSIVE EQUIPMENTS
DEVICES ARE NOT ALWAYS COMPATIBLE WITH DEVICES USING DIFFERENT MIC TECHNOLOGY
MORE EXPENSIVE THAN FIXED NETWORK INTERNET CONNECTIVITY
NETWORK SECURITY
COST OF ACCESS DEVICES AND SUBSCRIPTIONS
COMMERCIALLY AVAILABILITY OF TECHNOLOGIES
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.

Mobile Internet Connectivity

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