Draw and explain hexagonal cellular concept.
[3 marks]Explain cell splitting concepts with neat and clean figure.
[4 marks]Describe evolution of 1G, 2G and 3G mobile phone systems.
[7 marks]Define the following terms regarding wireless communication: (1) Co-channel cell (2) Cell dragging (3) Dwell time
[3 marks]Give comparison of hard and soft hand off.
[4 marks]Enlist and explain the different channel assignment strategy in cellular communication system.
[7 marks]Prove that for a regular hexagonal geometry, the frequency reuse ratio and cluster size are related by the relationship Q = (3N)1/2, where N= i2 +j2 +ij
[7 marks]State the difference between large and small-scale propagation loss.
[3 marks]Explain frequency reuse concept.
[4 marks]Derive the expression for Feher’s upper bound.
[7 marks]Explain Bluetooth technology with the important parameters.
[3 marks]Explain the concept of cell sectoring in detail with neat and clean figure.
[4 marks]Explain CDMA Technology for cellular systems in detail.
[7 marks]Enlist various multiple access schemes used in wireless communications explain in brief.
[3 marks]Define the following terms. (1) Reverse channel (2) Simplex system (3) Control channel (4) Half-duplexing
[4 marks]Discuss the Okumura’s prediction method with necessary equations.
[7 marks]Draw and explain Umbrella cell approach.
[3 marks]Explain wireless Ad-Hoc network.
[4 marks]Explain the need for RAKE receivers for a CDMA based wireless communication system.1
[7 marks]Explain co-channel interference.
[3 marks]State the important steps to establish the call in GSM.
[4 marks]Discuss Frequency Division Multiple Access (TDMA) in detail. write equation for number of channels that can be simultaneously supported in a FDMA system
[7 marks]What do you mean by multipath fading?
[3 marks]Compare Wi-Fi and Wi-MAX system parameters.
[4 marks]Draw a neat sketch of GSM architecture and state the functions of the following: BSC, MSC, VLR, HLR, AUC.
[7 marks]