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Examen
EC2043 – Wireless Networks
VIII - Semester 
Two Marks Questions and Answers 
UNIT – I 
PART –A 
1. Find out the capacity of a single IS-95 cell that uses QPSK modulation and convolutional 
coding 3 db < Sr < 9 db, and bandwidth of the channel is 1.25 MHz 
 (Nov/Dec2012) ,(May /June 2013) 
 Solution: No. Of Users M = 
 M 
 W is the bandwidth of the channel 
 R is the Transmission rate 
 Given Data: 
 W = 
 For QPSK Modulation R = 9600bps 
 
M = = 16 Us...