Answered: Once the media information reaches the…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

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Once the media information reaches the receiver, it must be played out at the right time. In general, this will not be the time at which the real-time transport protocol (RTP) packet arrived at the receiver because packets will take slightly different amount of time to transit the network. Even if the packets are injected with exactly the right intervals between them at the sender, they will reach the receiver with different relative times. The variation in delay is called jitter. to reduce the jitter, we can buffer packets. Let us assume that the jitter is variable, and the size of buffer is enough. Given this, explain what other problems we can encounter.

Expert Solution

Step 1

Problems:

Difficult to find the distribution of the jitter variables.
The latency added by the jitter buffer is constant. If original jitter or delay decreases, the delay in playback remains constant due to jitter buffer. If jitter or delay increases over the jitter buffer size, the packet will be discarded.