EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Question
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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Students have asked these similar questions
A planet located far from Earth is around 9 x 1010 meters away. If a stop-and-wait protocol is employed for frame transmission on a 64 Mbps point-to-point link, what is the channel utilization? Assume that the speed of light is 3 108 m/s and that the frame size is 32 KB.
Suppose the IEEE 802.11 RTS and CTS frames were as long as the standard DATA
and ACK frames. Would there be any advantage to using the CTS and RTS frames?
Why or why not?
Question 2
Describe the signal pattern produced on the medium by the Manchester-encodedpreamble of the IEEE 802.3 MAC frame.
Chapter 7 Solutions
EBK COMPUTER NETWORKING
Ch. 7 - Prob. R1RQCh. 7 - Prob. R2RQCh. 7 - Prob. R3RQCh. 7 - Prob. R4RQCh. 7 - Prob. R5RQCh. 7 - Prob. R6RQCh. 7 - Prob. R7RQCh. 7 - Prob. R8RQCh. 7 - Prob. R9RQCh. 7 - Prob. R10RQ
Ch. 7 - Prob. R11RQCh. 7 - Prob. R12RQCh. 7 - Prob. R13RQCh. 7 - Prob. R14RQCh. 7 - Prob. R15RQCh. 7 - Prob. R16RQCh. 7 - Prob. R17RQCh. 7 - Prob. R18RQCh. 7 - Prob. R19RQCh. 7 - Prob. R20RQCh. 7 - Prob. R21RQCh. 7 - Prob. R22RQCh. 7 - Prob. R23RQCh. 7 - Prob. P1PCh. 7 - Prob. P2PCh. 7 - Prob. P3PCh. 7 - Prob. P5PCh. 7 - Prob. P6PCh. 7 - Prob. P7PCh. 7 - Prob. P8PCh. 7 - Prob. P10PCh. 7 - Prob. P11PCh. 7 - Prob. P12PCh. 7 - Prob. P13PCh. 7 - Prob. P14PCh. 7 - Prob. P15PCh. 7 - Prob. P16P
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Similar questions
- Take, for example, IEEE 802.11 RTS and CTS frames as the standard DATA and ACK frames. Is there a benefit to using CTS and RTS frames over other methods? Why not, or why not now?arrow_forwardSuppose you are designing a sliding window protocol for a 2Mbps point to point link to the moon, which has a one way latency of 10 sec. Assume that, each frame carries 1KB of data, what is the minimum number of bits you need for the sequence number?arrow_forwardDescribe the significance of "Preamble" and "Start Frame Delimiter" in the Data Link layer.arrow_forward
- Discuss the advantages and disadvantages of both Byte Count and Byte Stuffing framing techniques of the data-link layer.arrow_forwardSuppose you are designing a sliding window protocol for a 1-Mbps point-to-point link to a stationary satellite revolving around the earth at 3 x 104 km altitude. Assuming that each frame carries 1 KB of data, what is the minimum number of bits you need for the sequence number in the following cases? Assume the speed of light is 3 x 108 m/s. (a) RWS=1 (b) RWS=SWSarrow_forwardAssume that there is a shared connection (for example, an Ethernet bus) with a speed of 1 Mbps. How much time (in microseconds) is required to send a frame with a length of 1000 bits over this link?arrow_forward
- 4. In this problem, you will derive the efficiency of a CSMA/CD-like multiple access protocol. In this protocol, time is slotted and all adapters are synchronized to the slots. Unlike slotted ALOHA, however, the length of a slot (in seconds) is much less than a frame time (the time to transmit a frame). Let S be the length of a slot. Suppose all frames are ofarrow_forwardDescribe the signal pattern produced on the medium by the Manchester-encoded preamble of the IEEE 802.3 MAC frame. ⦁ Explain the term handoffarrow_forwardHow does the "Data Link Layer" ensure data frames are correctly addressed and error-free?arrow_forward
- Assume there is a shared connection with a 1 Mbps speed, such as an Ethernet bus. How long (in microseconds) does it take to deliver a frame with a 1000 bit length over this link?arrow_forwardQuestion: Find the Global Unicast Address if EUI-64 is used to generate the interface identifier and the Ethernet physical address is (A5-C9-23-14-00-02) and the Global unicast prefix is 2000:0000:0000:0001, then represent the generated GUA in compressed format.arrow_forwardA stream of data is being carried by STS-1 frames. If the data rate of the stream is 49.540 Mbps, how many STS-1 frames per second must let their H3 bytes carry data?arrow_forward
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