CS MOBILE AND PERVASIVE COMPUTING. YEAR & SEM: IV & VII Jochen Burkhardt, Pervasive Computing: Technology and Architecture of Mobile. Internet Applications .. Write notes on wireless sessions protocol. 4. Discuss about. The fourth Year,seventh semester Anna University notes for Mobile And Pervasive Computing (Subject Code: CS) is made available. CSMOBILE AND PERVASIVE COMPUTING 4) Explain the various applications of mobile computing. . Write notes on wireless sessions protocol. 4.

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While transmission, there is a chance for simple packet loss due to a transmission error. What are the tele services of GSM? But instead another temporary number reflects the location and any roaming required is the MSRN is used internally by the system. In digital radio communications such as GSM multipath can cause errors and affect the quality of communications.

Write short notes on ad hoc networks. Mention the components of WAP. It has range of 10m supporting pervvasive and synchronous transmission.


This library provides several function typical for the browser. Adaptive modulation systems improve rate of transmission and bit error rates by exploiting the channel information that is present at the transmitter.


The MAC management supports the association and re-association of a station to an access point and roaming between different access points. FR is an enhancement to TCP anc reduces the time a sender waits before retransmitting a lost segment.

Explain in detail about access via WAP. A piconet is the type of connection that is formed between two or more Bluetooth-enabled devices, one device takes the role of ‘master’, and all other devices assume a ‘slave’ role for synchronization reasons.

The cyclic redundancy check is an error detecting code in which the code is the remainder resulting from dividing the bits to be checked by a predetermined binary number.


This hides the identity of user. The system itself needs some additional information. In agent advertisement packet, Lifetime and Registration lifetime denotes what? The sender can now retransmit the missing packet s before the timer expires. The operation subsystem OSScontains all functions necessary for network operation and maintenance. For data transfer, the MAC layer offers two service primitives.

This behavior is called fast retransmit.

What are the Key characteristics of pervasive computing? What are the advantage and pitfalls of cache maintenance in DSR? Three classes of transaction service offered by WTP are. What are the four possible handover scenarios in GSM?


Explain the features of WML. At least one partner is needed for communication.


Discuss about tunneling and encapsulation mechanism and ntes tunneling. How is synchronization carried out in a Pervasive Environment? It is easy to distribute data and code among all systems.

Certificate containing data about the customer. Generic routing encapsulation allows the encapsulation of packets of one protocol suite into the payload portion of a packet of another protocol suite. Initial replication without enforced updates.

Explain the function of WDP.

For structuring the dialogue between two devices. Say something about the push architecture of WAP. Registration can be done in two different ways depending on the location of the COA.

Describe Transaction and Session protocols of wireless. Differentiate wired networks routing from ad-hoc wireless networks routing. It is wireless internet. What are the requirements for Mobile IP.

Pushing data transfer means, with out client request the server automatically pushing data to client. The hoarding is a cache maintenance scheme used for facilitating any disconnected operations.

How biometric signals are used in pervasive computing? There can be two piconets without overlap. TCP acknowledgements are cumulative, i.

Coomputing brief notes on the following.