Answer the questions in detail.
Question 1) Write short history of wireless communication.
Question 2) Explain the concepts of frequency selective fading.
Question 3) Compare the features of FDMA, TDMA and CDMA.
Question 4) How are various channels within forward link in an IS-95 system identified?
Question 5) Explain the basic WLL configuration. Write down its advantages over a wired subscriber loop?
Question 6) Draw GSM system architecture and explain in detail.
Question 7) Sketch the block diagram of ISDN system and describe it. Explain the types of services provided by ISDN. What are the major features of broadband ISDN?
Question 8) Write brief notes on the following:
(a) Pacific Digital Cellular.
(b) Personal Flandyphone Syster.