Podcast
Questions and Answers
What is the purpose of a source encoder?
What is the purpose of a source encoder?
- To modulate the analog signal for wireless transmission
- To convert an analog signal into a digital sequence (correct)
- To filter out noise from the analog signal
- To amplify the analog signal for better transmission
What is the role of quantization in source encoding?
What is the role of quantization in source encoding?
- To remove redundancy from the analog signal
- To smooth out the analog signal
- To approximate the analog signal into discrete levels (correct)
- To convert the analog signal into a continuous digital signal
How many distinct levels can be represented by a 3-bit resolution quantizer?
How many distinct levels can be represented by a 3-bit resolution quantizer?
- 6 levels
- 16 levels
- 3 levels
- 8 levels (correct)
What is the quantization error?
What is the quantization error?
What is the significance of the probability density function $P_s(t)$ in source encoding?
What is the significance of the probability density function $P_s(t)$ in source encoding?
What is the purpose of the sink in Directed Diffusion?
What is the purpose of the sink in Directed Diffusion?
In Directed Diffusion, how does the source send data towards the sink?
In Directed Diffusion, how does the source send data towards the sink?
How is communication handled in Directed Diffusion?
How is communication handled in Directed Diffusion?
What does Directed Diffusion use to establish a reply link towards the neighbor from which interest was received?
What does Directed Diffusion use to establish a reply link towards the neighbor from which interest was received?
How does Directed Diffusion differ from SPIN in terms of querying?
How does Directed Diffusion differ from SPIN in terms of querying?
What role does reinforcement play in Directed Diffusion?
What role does reinforcement play in Directed Diffusion?
What is the term used to describe the distance between dreams and reality?
What is the term used to describe the distance between dreams and reality?
In the context of wireless sensor networks, which chapter covers characteristics of MAC protocols in sensor networks?
In the context of wireless sensor networks, which chapter covers characteristics of MAC protocols in sensor networks?
Which chapter discusses the concept of Flooding and Gossiping in the context of wireless sensor networks?
Which chapter discusses the concept of Flooding and Gossiping in the context of wireless sensor networks?
What is the term used to describe MAC protocols that do not require devices to contend for access to the medium?
What is the term used to describe MAC protocols that do not require devices to contend for access to the medium?
Which type of routing protocol in wireless sensor networks is based on data characteristics rather than individual device addresses?
Which type of routing protocol in wireless sensor networks is based on data characteristics rather than individual device addresses?
What type of routing protocol in wireless sensor networks is activated only when needed?
What type of routing protocol in wireless sensor networks is activated only when needed?
What is the primary routing mechanism used by GFPG within the target region?
What is the primary routing mechanism used by GFPG within the target region?
How do nodes outside the target region forward packets in GFPG?
How do nodes outside the target region forward packets in GFPG?
What is the primary goal of QoS-based routing protocols?
What is the primary goal of QoS-based routing protocols?
Which of the following is NOT mentioned as an example of a QoS metric?
Which of the following is NOT mentioned as an example of a QoS metric?
In GFPG, what happens when a packet reaches a void (a node with no suitable neighbor to forward the packet)?
In GFPG, what happens when a packet reaches a void (a node with no suitable neighbor to forward the packet)?
How does GFPG ensure delivery of packets to all nodes within the target region?
How does GFPG ensure delivery of packets to all nodes within the target region?
What is the main advantage of using pulse code modulation (PCM) for source encoding?
What is the main advantage of using pulse code modulation (PCM) for source encoding?
What is the key difference between pulse code modulation (PCM) and delta modulation?
What is the key difference between pulse code modulation (PCM) and delta modulation?
What is the purpose of the 'difference signal' ($V_d(t)$) in delta modulation?
What is the purpose of the 'difference signal' ($V_d(t)$) in delta modulation?
How many distinct signal levels can be represented using a 2-bit PCM encoding scheme?
How many distinct signal levels can be represented using a 2-bit PCM encoding scheme?
Which of the following is a key disadvantage of pulse code modulation (PCM)?
Which of the following is a key disadvantage of pulse code modulation (PCM)?
