ECET375 Homework # 2
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ECET375
Homework # 2
Chapter 2: Signals, Noise, Modulation, and Demodulation 
10. Determine the information capacity in bps for a circuit with a 100KHz bandwidth and a signaltonoise power ratio of 40 dB (10,000) 
11. Determine of number of conditions possible for a binary code containing the following number of bits: 
12. Determine the highest bit rate possible for a circuit propagating a four bit binary code with a bandwidth of 10,000 Hz. 

16. Determine the minimum bandwidth, baud, and bandwidth efficiency for the following bit rates and modulation schemes—8QAM and 16QAM: 
17. A probability of error of 106 means it is possible that there will bit error for every bits transmitted.

Chapter 6: Multiplexing and Carriers 
3. For the following bit sequence, draw the timing diagram for UPRZ, UPNRZ, BPRZ, BPNRZ and BPRZAMI: 1110010101100. 
5. A PCMTDM system multiplexes 30 voiceband channels each with a bandwidth 0f 0 KHz to 3 KHz. Each sample is encoded with a ninebit PCM code. Determine 
a. Minimum sample rate;
b. Line speed in bps; frame:
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