We consider the use of small packets for Voice-over-IP applications. Suppose that the packet consists of L bytes of data and 5 bytes of header.
We consider the use of small packets for Voice-over-IP applications. Suppose that the packet consists of L bytes of data and 5 bytes of header.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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We consider the use of small packets for Voice-over-IP applications. Suppose that the packet consists of L bytes of data and 5 bytes of header.
b.) Consider sending a digitally encoded voice source directly. Suppose the source is encoded at a constant rate of 128 kbps. Assume each packet is entirely filled before the source sends the packet into the network. The time required to fill a packet is the packetization delay. Packetization delays greater than 20 msec can cause a noticeable and unpleasant echo. In terms of L bytes, determine the packetization delay in milliseconds. Also, determine the packetization delay for L = 1,500 bytes and for L = 50 bytes.
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