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Page Name: Mobile Computing Seminar Technologies and standards in wireless communication Summary


Posted by: project ideas
Created at: Wednesday 25th of April 2012 01:18:25 AM
Last Edited Or Replied at :Wednesday 25th of April 2012 01:18:25 AM
mobile computing seminar topics , frquency hopping spread spectrum in mobile computing pdf, frequency for radio transmission in mobile computing , ppt for summary latest technology in mobile computing, wireless communication of multiplexing in mobile computing ppt , mobile computing seminar technologies and standard wireless communication,
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opping Spread Spectrum FHSS
In Frequency Hopping the transmission band is divided into dierent frequency channels typically 
and a logical channel ie a channel on which two or more devices communicate hops periodically from
one frequency channel to another with a pseudorandom hopping sequence

 Direct Sequence Spread Spectrum DSSS

Also in Direct Sequence the frequency band is divided into fewer but larger
channels but no hopping
is used To compensate for noise on a channel a technique called chipping is implemented each bit is
converted into a redund..................==> [ Click Here to Read More ]



Page Name: Mobile Computing for E-commerce


Posted by: project ideas
Created at: Tuesday 19th of June 2012 02:13:21 AM
Last Edited Or Replied at :Tuesday 19th of June 2012 02:13:21 AM
mobile computing and ecommerce, e commerce for mobile computing ppt , ppt on mobile computing for e commerce, mobile computing for e commerce ppt , general seminar topics on commerce, e commerce in mobile computing ppt , mobile electronic commerce seminar topics,
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devices, such as smart phones with embedded SIM card to enhance processing power and storage capabilities, carry out many mobile e-commerce transactions. The main driving force for the rapid acceptance rate of mobile e-commerce is its increased convenience and efficiency in performing simple transactions compared with the stationary machines. For example, some transactions involve only a single request and reply between a customer and a merchant, and possible another round trip message exchange between the customer and the bank. Using a mobile device, people can perform these kinds of transac..................==> [ Click Here to Read More ]



Page Name: Fundamental Challenges in Mobile Computing


Posted by: project ideas
Created at: Wednesday 16th of May 2012 05:54:06 AM
Last Edited Or Replied at :Wednesday 16th of May 2012 05:54:06 AM
fundamental challenges in mobile computing ppt ,
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l case of a distributed security concerns, portable computers are more
system? Are there any new and deep issues to be vulnerable to loss or damage.
investigated, or is mobile computing just the latest fad? • Mobile connectivity is highly variable in
This paper is my attempt to answer these questions. The performance and reliability.
paper is in three parts: a characterization of the essence of Some buildings may offer reliable, high-bandwidth
mobile computing; a brief summary of results obtained by wireless connectivity while others may only offer
my research group in the context of t..................==> [ Click Here to Read More ]



Page Name: Mobile Computing Seminar Technologies and standards in wireless communication Summary


Posted by: project ideas
Created at: Wednesday 25th of April 2012 01:18:25 AM
Last Edited Or Replied at :Wednesday 25th of April 2012 01:18:25 AM
mobile computing seminar topics , frquency hopping spread spectrum in mobile computing pdf, frequency for radio transmission in mobile computing , ppt for summary latest technology in mobile computing, wireless communication of multiplexing in mobile computing ppt , mobile computing seminar technologies and standard wireless communication,
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ant bit pattern called chip sequence whereby an nchip code spreads the signal by
a factor of n If some interference destroys part of the chip sequence the original bit may still be recovered
from the remaining chips

Orthogonal FrequencyDivision Multiplexing OFDM

The general idea of OFDM is to split a highrate data stream into lowerrate streams which are trans
mitted simultaneously over a number of subcarriers These subcarriers are orthogonal to each other in
the sense that when listening to one subcarrier the others don t interfere hence the name Orthog
..................==> [ Click Here to Read More ]



Page Name: MOBILE COMPUTING LOCATION MANAGEMENT


Posted by: project expert
Created at: Monday 09th of January 2012 04:38:27 AM
Last Edited Or Replied at :Friday 27th of January 2012 10:11:15 PM
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to the mobile switching centre (MSC), which is, in turn, connected to the public switched telephone network (PSTN). The frequency spectrum allocated to wireless communication is very limited, so the cellular concept was introduced to reuse the frequency. Each cell is assigned a certain number of channels. To avoid radio interference, the channels assigned to one cell must different from the channels assigned to its neighbouring cells. The radio interference between them is tolerable. By reducing the size of the cells, the cellular network is able to increase its capacity, and therefore to ser..................==> [ Click Here to Read More ]



Page Name: MOBILE COMPUTING- CDPD TECHNOLOGY


Posted by: academic expert
Created at: Friday 25th of March 2011 04:47:26 AM
Last Edited Or Replied at :Friday 25th of March 2011 04:47:26 AM
MOBILE COMPUTING CDPD TECHNOLOGY, MOBILE , COMPUTING, CDPD , wireless mobile computing, rugged mobile computer , advantages of mobile computing, mobile computing definition , mobile computing solutions, what is mobile computing , mobile computing technology, mobile computing applications , mobile computing device, mobile computer , mobile computing, TECHNOLOGY , mobile computing and cdpd, mobile computing on cdpd technology , abstract of cdpd technology, mobile cdpd tech abstract , abstract of mobile cdpd technology, cdpd technology , what is cdpd technology, ppt on mobile computing cdpd technology , cdpd technology in mobile computing ppt, diagrams on cdpd technology , cdpd technology seminar, mobile cdpd techonology , mobile cdpd technology pdf, mobile cdpd technology , abstract for mobile computing docx, cdpd in mobile computing powerpoint presentation , mobilecompting docx, cdpd in moblie computig , difference between cdpd and circuit switching, mobile computing cdpd technology ppt , application of cdpd technology,
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g the transmitted data.
The hierarchy consists of the following levels :
Mobile Data Base Station (MDBS).
In each cell of the cellular reception area, there is a Mobile Data Base Station (MDBS) which is responsible for detection of idle time in voice channels, for relaying data between the mobile units and the Mobile Data Intermediate Systems (MDIS), sending of packets of data onto the appropriate unoccupied frequencies as well as receiving data packets and passing them to the appropriate Mobile end user within its domain.
o Detection of idle time.
This is ach..................==> [ Click Here to Read More ]



Page Name: MOBILE COMPUTING FRAMEWORK


Posted by: academic expert
Created at: Monday 14th of February 2011 11:41:08 PM
Last Edited Or Replied at :Friday 27th of January 2012 10:10:36 PM
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s acceptable for 802.5 support. A smart token-ring IrLAN implementation will scale the media frame size to fit well in an integer number of TinyTP frames, which depends on the negotiated frame size. Examples of such scaling are shown in the following table.
Flow Control
TinyTP specifies a flow control mechanism based on extended credit; that is, during the setup of a TinyTP connection, each side informs the other of a number of outstanding “credits,” where each credit represents a TinyTP packet that may be sent to the side extending the credit. Each time a packet is sent, the send..................==> [ Click Here to Read More ]



Page Name: ARCHITECTURE CHALLENGES AND RESEARCH ISSUES ON MOBILE COMPUTING


Posted by: seminar topics maker
Created at: Friday 02nd of April 2010 05:08:07 AM
Last Edited Or Replied at :Friday 22nd of April 2011 11:01:29 PM
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cation; supplementary services with intelligent network, enabling services on SIM with SIM application tool kit, text services with short message service, internet services with WAP and dynamic applications on mobile phones with J2ME.
Further our paper gives information on challenges of mobile Computing which includes harsh communications, connections, bandwidth and Heterogeneous networks. Under research issues seamless connectivity over multiple Overlays, scalable mobile processing, wireless communications, mobility and portabi..................==> [ Click Here to Read More ]



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