BT0086, Mobile Computing

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ASSIGNMENT

DRIVE	fall 2017
PROGRAM	BSc IT
SEMESTER	FIFTH
SUBJECT CODE & NAME	BT0086, Mobile Computing
CREDIT	4
BK ID	B2067
MAX. MARKS	60

Q.1. Explain simple reference model. 5+5

Answer:-

Simple reference model:-

The basic reference model used to structure communication Systems. Mobile communication is influenced by layered reference model.

In Figure, you can see a Personal Digital Assistant (PDA) which is one of the example of wireless and portable device. PDA is

Q.2. Write short notes on Signals.                                                                                                       10

Answer:-

Signals:-

Signals are the physical representation of data. Signals are functions of time and location. Signal parameters represent the data values.

The most

Q.3. What do you understand by Analog Modulation?                                                                       10

Answer:-

Analog modulation:-

In Analog modulation, the information carrying base band signal typically called the message or information signal m(t) varies either the amplitude or the angle  of the carrier signal (or radio carrier). The carrier signal has a higher frequency which shifts the center frequency of the baseband signal up to the radio carrier. It is the radio carrier which is capable of transmitting through wireless media and

Q.4. What is Universal Mobile Telecommunication System (UMTS)?                                                 10

Answer:-

Universal Mobile Telecommunication System (UMTS):-

The development community of the wireless and mobile communication wanted the cellular system which would

Q.5. Write short notes on Space Division Multiple Access (SDMA).                                                    10

Answer:-

Space Division Multiple Access (SDMA):-

Space Division Multiple Access (SDMA) is a medium accessing scheme wherein the spaces are divided and separate spaces are allocated for users in wireless networks. This scheme is applied when a typical application requires an optimal base station for a mobile phone user. When the spaces are divided

Q.6. What are the Properties of a MANET?                                                                                            10

Answer:-

Properties of a MANET:-

 i.    Mobile ad hoc networks are based on wireless radio links.

ii.    MANET is able

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