Answer the problems in detail.

problem 1) prepare short history of wireless communication.

problem 2) describe the concepts of frequency selective fading.

problem 3) Compare the features of FDMA, TDMA and CDMA.

problem 4) How are various channels within forward link in an IS-95 system identified?

problem 5) describe the basic WLL configuration. prepare down its advantages over a wired subscriber loop?

problem 6) Draw GSM system architecture and describe in detail.

problem 7) Sketch the block diagram of ISDN system and describe it. describe the types of services provided by ISDN. What are the major features of broadband ISDN?

problem 8) prepare brief notes on the following:

(a) Pacific Digital Cellular.

(b) Personal Flandyphone Syster.