Define: (1) Control Channel (2) Mobile Switching Center (3) Full Duplex Systems
[3 marks]With figure explain Frequency Reuse concept in detail. Define cluster size and write the equation for system capacity.
[4 marks]Explain handoff scenario at cell boundary with figure.
[7 marks]Describe co channel interference and adjacent channel interference.
[3 marks]Explain the concept of trunking and grade of service .
[4 marks]Explain sectoring to improve coverage and capacity of a system.
[7 marks]Explain :(1) Cell splitting (2) Microcell Zone concept To improve coverage and capacity of a system.
[7 marks]Explain three basic propagation mechanisms.
[3 marks]Explain the factors influencing small scale fading.
[4 marks]Explain ground reflection (Two-ray) Model with figure and derive the equation for Electric Field E TOTAL.
[7 marks]Explain Doppler Shift with equation.
[3 marks]Explain small scale fading( based on time delay spread)
[4 marks]Explain Spread spectrum channel impulse response measurement system with diagram.
[7 marks]Explain Frequency Division Multiple Access(FDMA) in wireless communication with figure.
[3 marks]Explain small scale fading( based on Doppler spread)
[4 marks]Explain direct RF channel impulse response measurement system with diagram.
[7 marks]If a total of 33 MHz of band width is allocated to a particular FDD cellular telephone system which uses two 25 KHz simplex channels to provide full duplex voice and control channels, compute the number of channel available per cell if a system uses: (1) four cell reuse (2) seven cell reuse and (3) 12 cell reuse
[3 marks]Explain Time Division Multiple Access (TDMA) in wireless communication with figure.
[4 marks]Draw GSM system architecture and explain its working principle in detail.
[7 marks]Calculate the Brewster angle for a wave impinging on a ground having a permittivity of ℇ r =1
[4 marks]Explain Code Division Multiple Access (CDMA) in wireless communication with figure.
[4 marks]Consider a transmitter which radiates a sinusoidal carrier frequency of 1850 MHZ. For a vehicle moving 60 mile per hour, compute the received carrier frequency if the mobile is moving (1) Directly toward the transmitter (2) directly away from the transmitter and (3) in a direction which is perpendicular to the direction of arrival of the transmitted signal.
[7 marks]Explain: (1) static channel assignment strategy (2) dynamic channel assignment strategy
[3 marks]Write a short note on 3G W-CDMA(UMTS)
[4 marks]With diagram explain various 2.5 Gand 3G upgrade paths for the major 2G technologies.
[7 marks]