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Question :
What is the ISM band and what is particular about this frequency band? Name two wireless technologies that make use of the ISM frequency band.
a) Explain the following spread spectrum techniques:
i) Frequency Hopping Spread Spectrum ii) Direct Sequence Spread Spectrum
b) Describe the functioning of a Bluetooth piconet? Include the discussion of the concept of Master, slave, stand-by and parked devices in your description of the Bluetooth piconet.
c) Compare the given features of Bluetooth, Ultra Wide Band and WiFi:
Data rate, Coverage (distance covered), Application focus.
d) Consider the security aspects in both Wireless Local Area Networks (WLANs) and Wireless Personal Area Networks (WPANs).
i) What are the security problems introduced in Wireless LANs and Wireless PANs?
ii) What level of security can the IEEE 802.11 and Bluetooth standards provide?
My question is that i am working in a petrochemical plant where in final stage disc ring reactor the barometric lag is chocked completely the system is under vacuum if i introduce
ENGINE DRAINS. There are two types of drains: • Controlled drains - the result of normal operation. • Uncontrolled drains - the result of abnormal operation. CONTROLLE
Aviation legislation - Certificate of Design: During the construction, the manufacturer has to provide the C.A.A. with a Certificate of Design and also a Type Record for th
Plasma Arc Welding (PAW) is a special form of gas tungsten arc welding in which constricted plasma arc is directed at the weld area. In PAW, a tungsten electrode is contained in a
x(n)={1, 2+j,j,0,2-j,0,1,-3}
USE OF MULTICYLINDER ENGINE If, in a multi cylinder engine, power strokes are staggered, the limitation of flywheel can be overcome to a large extent. Torque diagram for 2 cyli
FeCl+NaOH
what do you mean by diffraction of light? what is the diffrence between interference and diffraction of light?distinuish between Fresnel''s and Fraunhofer''s diffraction.
2. Differentiate between stream oriented and data gram oriented socket in java?
simplify using k-map f=sum(0,4,5,6,9,10,12)+d(1,15)
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