Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Chapter 7, Problem R10RQ
Program Plan Intro

Request to send (RTS) clear to send (CTS):

  • The optimal mechanism used by the IEEE 802.11 is RTS. This is used to decreasing the frame collisions which was introduced by the hidden node problem.
  • In order to avoid the collisions problem, the IEEE 802.11 protocol allows a station to use Request to Send (RTS) and Clear to Send (CTS) control frames to reserve access to the channel.
  • When a sender want to send a data frame, it can initial send an RTS frame to the AP. After AP receives the RTS frame, it will responds by broadcasting a CTS frame.

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