MobComp - Department of Electrical Engineering Indian...

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Department of Electrical Engineering Indian Institute of Technology Kanpur 1 Copyright © Telematics group Mobile Computing Networks Mobile Computing Networks Dr.Yatindra Nath Singh EE/ACES, IIT Kanpur Email: ynsingh@iitk.ernet.in
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Department of Electrical Engineering Indian Institute of Technology Kanpur 2 Copyright © Telematics group Mobile Computing Networks What is mobile computer? A computer which you can take with you all around. You can do all the things which can be done with a desktop computer. You should be able to use same software, which you use on a desktop computer.
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Department of Electrical Engineering Indian Institute of Technology Kanpur 3 Copyright © Telematics group Mobile Computing Networks Mobile computer - How? One possibility is to have a standalone computer capable of • storing large amount of software and data files, • processing power to support the required applications. Modern day laptop computer are something like this.
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Department of Electrical Engineering Indian Institute of Technology Kanpur 4 Copyright © Telematics group Mobile Computing Networks Whenever you are static, connect to internet through an access point and you can do the file transfer, telnet, web browsing etc. . While on the move, connectivity is desired for using software which require cooperation of at least two machines.
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Department of Electrical Engineering Indian Institute of Technology Kanpur 5 Copyright © Telematics group Mobile Computing Networks Option for connectivity An easy option • Use cellular mobile phone network to connect to some Internet Service Provider and hence to internet. • What you need - cellular phone/ corresponding modem. Not a good option for campus wide mobile network. • dependent on the mobile telephone network operator • cheaper wireless LAN options available
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Department of Electrical Engineering Indian Institute of Technology Kanpur 6 Copyright © Telematics group Mobile Computing Networks Other extreme of mobile computer Mobile computing device • acts as a terminal • have wireless connectivity to the network • Whatever command or application you run is executed on a remote server. • Mobile computing device acts as remote terminal.
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Department of Electrical Engineering Indian Institute of Technology Kanpur 7 Copyright © Telematics group Mobile Computing Networks Advantages/ disadvantages of this extreme Very small, compact and light weight mobile computer Less power consumption and large battery life - this may not be true, if radio communication requires more power than to power up all necessary devices for a standalone computer on average basis.
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Department of Electrical Engineering Indian Institute of Technology Kanpur 8 Copyright © Telematics group Mobile Computing Networks Higher reliability of data - theft of standalone computer means everything is lost. But here all information is stored on some static server. • But data privacy while communicating to servers via
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MobComp - Department of Electrical Engineering Indian...

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