UNIT I

Introduction To Wireless Communication System
An overview of wireless communication and future vision. Wireless communication system and standards: satellite communication system, GPS, paging system, cordless phone, wireless local loop, RFID.

• Short Questions

1. Wireless Communication Systems
2. What does LTE stand for in wireless communication?
3. Name two types of wireless personal area networks.
4. What is the main advantage of using MIMO technology in wireless networks?
5. What are the three main orbits used for satellites?
6. Describe one application of geostationary satellites.
7. What frequency bands are commonly used in satellite communication?
8. What does GPS stand for?
9. How many satellites are needed to determine a precise location using GPS?
10. What are the three segments of the GPS system?
11. What is a primary use case of pagers in modern settings?
12. How do pagers receive messages?
13. What type of pager can send and receive messages?
14. What frequency band is commonly used by modern cordless phones in the U.S.?
15. What is a major limitation of cordless phones during a power outage?
16. How do cordless phones differ from mobile phones in terms of base connectivity?
17. What does WLL stand for in telecommunications?
18. How does Wireless Local Loop benefit remote areas?
19. What is one of the technologies used in WLL for voice transmission?
20. What component in an RFID system stores data?
21. What is the main security concern with RFID technology?
22. How can RFID tags be used in logistics?

• Long Questions

1. Discuss the evolution of mobile communication technologies from 1G to 5G. What are the key technological advancements and functionalities introduced in each generation?
2. Explain the concept of Orthogonal Frequency-Division Multiplexing (OFDM) and its importance in modern wireless communication systems like LTE and Wi-Fi.
3. Describe the differences between geostationary, medium Earth orbit, and low Earth orbit satellites in terms of their applications, advantages, and limitations.
4. How do modern satellite communication systems overcome challenges related to signal latency and atmospheric interference?
5. Discuss the privacy and security implications of widespread RFID use in consumer products and personal identification. How can these concerns be addressed.
6. Explain how the Global Positioning System (GPS) uses trilateration to determine a user's exact location. Include a discussion on the roles of the space, control, and user segments of GPS.
7. Evaluate the impact of GPS technology on industries such as agriculture, transportation, and urban planning.
8. Assess the role of paging systems in contemporary communication strategies, particularly in healthcare and emergency services. Why do these sectors continue to rely on paging technology?
9. Discuss the technological limitations and advantages of using a voice pager compared to digital messaging systems.
10. Compare and contrast the technologies behind cordless phones and mobile phones, focusing on their operational frequencies, uses, and limitations within household and office environments.
11. Analyze the impact of DECT technology on the performance and security of modern cordless phone systems.
12. Explore how Wireless Local Loop technology can be utilized to bridge the digital divide in rural or developing regions. What are the technological and economic challenges involved?
13. Describe the operational principles of a Wireless Local Loop system using CDMA technology and discuss its advantages over traditional wired local loop systems.
14. Explain how RFID technology can transform supply chain management. Discuss specific improvements in efficiency and accuracy that RFID can provide over conventional tracking methods.