Looking for EC2401 Wireless Communication important questions to attend an exam on 02nd November 2015 ? You can here download the important question papers of Anna University Chennai. Provided here under is a collection of most frequently asked questions for the subject EC2401 Wireless Communication . This subject is present in the syllabus of B.E ECE Regulation 2008 of AU Chennai.
Anna University Chennai
Department of B.E B.E Electronics and Communication Engineering
Seventh Semester
EC2401 Wireless Communication
November / December 2015 Exam Important Questions
(Regulation 2008)
See Also last 04 years Questions Papers of EC2401 Wireless Communication
1. (i) Discuss about the technical challenges faced by the wireless communication (10)
(ii) What are the features of interference limited systems (6)
2. Explain the Principle of Cellular Networks and various types of Handoff Techniques (16)
3. (i) Explain the factors influencing small scale fading (10)
(ii) Find the average fade duration for thershold levels ? = 0.01, ? = 0.1, ? = 1, when doppler frequency is 200 Hz
4. Discuss the types of services, requirements, spectrum limitations and noise considerations of wireless communications (16)
5. (i) Explain how signal propagates against free space attenuation and reflection (8)
(ii) Discuss about temporal channel variations in Fixed Wireless Systems (8)
6. (i) Briefly explain the factors that influence small scale-fading (8)
(ii) If a transmitter produces 50W of power, express transmit power in units of dBM and dBW. If 50W is applied to a unity gain antenna with a 900 MHz carrier frequency, find the received power in dBM at a free space distance of 100 m from the antenna. What is Pz (10Km) ? Assume unity gain for the receiver antenna (8)
7. Explain with neat diagram the QPSK based transmission and reception technique and their significance in the wireless system (16)
8. Explain in details about,
(i) Linear Equalizers (8)
(ii) Non Linear Equalizers (8)
9. Explain in detail about :
(i) Polarization Diversity (6)
(ii) Time Diversity (5)
(iii) Frequency Diversity (5)
10. Describe the principle involved in Cellular Code-Division-Multiple Access System
Anna University Chennai
Department of B.E B.E Electronics and Communication Engineering
Seventh Semester
EC2401 Wireless Communication
(Regulation 2008)
See Also last 04 years Questions Papers of EC2401 Wireless Communication
1. (i) Discuss about the technical challenges faced by the wireless communication (10)
(ii) What are the features of interference limited systems (6)
2. Explain the Principle of Cellular Networks and various types of Handoff Techniques (16)
3. (i) Explain the factors influencing small scale fading (10)
(ii) Find the average fade duration for thershold levels ? = 0.01, ? = 0.1, ? = 1, when doppler frequency is 200 Hz
4. Discuss the types of services, requirements, spectrum limitations and noise considerations of wireless communications (16)
5. (i) Explain how signal propagates against free space attenuation and reflection (8)
(ii) Discuss about temporal channel variations in Fixed Wireless Systems (8)
6. (i) Briefly explain the factors that influence small scale-fading (8)
(ii) If a transmitter produces 50W of power, express transmit power in units of dBM and dBW. If 50W is applied to a unity gain antenna with a 900 MHz carrier frequency, find the received power in dBM at a free space distance of 100 m from the antenna. What is Pz (10Km) ? Assume unity gain for the receiver antenna (8)
7. Explain with neat diagram the QPSK based transmission and reception technique and their significance in the wireless system (16)
8. Explain in details about,
(i) Linear Equalizers (8)
(ii) Non Linear Equalizers (8)
9. Explain in detail about :
(i) Polarization Diversity (6)
(ii) Time Diversity (5)
(iii) Frequency Diversity (5)
10. Describe the principle involved in Cellular Code-Division-Multiple Access System
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