Previous year question paper for WCS (B-TECH electronics and communication engineering 6th)

Wireless communication system

Previous year question paper with solutions for Wireless communication system from 2014 to 2018

Our website provides solved previous year question paper for Wireless communication system from 2014 to 2018. Doing preparation from the previous year question paper helps you to get good marks in exams. From our WCS question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.

Introduction: A basic cellular system, performance criteria, operation of cellular systems, planning

a cellular system, analog & digital cellular systems. Examples of Wireless Communication

Systems: Paging Systems, Cordless Telephone Systems, Cellular Telephone Systems. Blue tooth

and Zig Bee.

Elements of Cellular Radio Systems Design: General description of the problem, concept of

frequency reuse channels, co-channel interference reduction factor, desired C/I from a normal case

in an omni directional antenna system, cell splitting, consideration of the components of cellular


Digital Communication through fading multipath channels: Fading channel and their

characteristics- Channel modeling, Digital signaling over a frequency non selective slowly fading

channel. Concept of diversity branches and signal paths. Combining methods: Selective diversity

combining, Switched combining, maximal ratio combining, Equal gain combining.

Multiple Access Techniques for Wireless Communications: Introduction, Frequency Division

Multiple Access (FDMA), Time Division Multiple Access (TDMA), Spread Spectrum Multiple

Access, Space Division Multiple Access, Packet Radio Protocols; Pure ALOHA, Slotted ALLOHA.

Wireless Systems & Standards: AMPS and ETACS, United states digital cellular (IS- 54 & IS 136),

Global system for Mobile (GSM): Services, Features, System Architecture, and Channel Types,

Frame Structure for GSM, Speech Processing in GSM, GPRS/EDGE specifications and features. 3G

systems: UMTS & CDMA 2000 standards and specifications. CDMA Digital standard (IS 95):

Frequency and Channel specifications, Forward CDMA Channel, Reverse CDMA Channel, Wireless

Cable Television.

Future trends: 4G mobile techniques, LTE-Advance systems