MOBILE AND PERVASIVE COMPUTING

Functions of Mobile Computing

User Mobility:

•      User should be able to move from one physical location to another location and use the same service. E.g. user moves from London to New Delhi and uses Internet to access the corporate application the same way the user uses in home office.

Network Mobility:

•      User should be able to move from one Network to another network and use the same service. E.g. user moves from London to New Delhi and uses the same GSM phone to access the corporate application through WAP. In home Network he uses this services over GPRS whereas in Delhi he access it over the GSM Network.

Bearer Mobility:

•      User should be able to move from one bearer to another and use the same service. E.g. user was using a service though WAP bearer in his home N/W in Bangalore. He moves to Coimbatore, where WAP is not supported, he switch over to voice or SMS bearer to access the same application. (switching from BSNL to Vodafone on roaming)