802.11 slot time propagation delay

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Throughput and Delay Limits of IEEE 802.11. Y ang Xiao, Member, ... Propagation delay. Data rate. ... backoff time counter is decremented in terms of slot time as.

Abstract— The MAC access delay in a saturated IEEE 802.11 .... The backoff time counter is decremented by one at the end of each idle slot. It is frozen when a ...... We ignore propagation delays since they are several orders of magnitude ... Performance analysis for IEEE 802.11 distributed ... - OSA Publishing S. Deronne, V. Moeyaert, and S. Bette, “Impact of the slottime parameter value ... F.-Y. Hung and I. Marsic, “Access delay analysis of IEEE 802.11 DCF in the .... which can be ignored in the analysis comparing to the typical wireless propagation. ns-3: ns3::WifiMac Class Reference

CS 571 Fall 2006 - University of Kentucky

ns-3: ns3::WifiMac Class Reference virtual void, SetSlot (Time slotTime)=0 .... This method sets 802.11ax 2.4 GHz standards-compliant defaults for following attributes: Sifs, Slot, EifsNoDifs, Pifs, CtsTimeout, and .... MaxPropagationDelay: The maximum propagation delay.

Lecture Today | Slotted ALOHA

Mac802_11e | startTimer(long delay, byte mode) Initiate a… implements MacInterface.Mac802_11. Implementation of IEEE 802_11b. Please refer to the standards document. For consistency, many of the variable names, constants and equations are taken directly from the specification.Air propagation delay. See Also: Constant Field Values. SLOT_TIME. GATE2005-IT-27 - GATE Overflow 802.11 is wireless LAN in which we can not detect collision so we just try to avoid collision by using CSMA/CA (carrier sense multiplesome info about "contention slot". Contention Protocols resolve a collision after it occurs.These Protocols execute a collision resolution protocol after each collision.

LDMAC: A propagation delay-aware MAC scheme for long-distance ...

Abstract—The IEEE 802.11 protocol family provides up to 54-Mbps data rate, whereas the industry is seeking higher data rates. This paper shows that a theoretical throughput upper limit and a theoretical delay lower limit exist for the IEEE 802.11 protocols. The existence of such limits indicates that by...

(PDF) Wireless Networks 2013-2014 | Huỳnh Ngọc Tân - Academia.edu

Adapting 802.11 through the inter-frame spacing to support real-time traffic. Hyperlan2. Techniques from Sensor Networks.6.1 Plot of the calculated propagation delays over a range of packet sizes . . . . . 6.2 Plot of the updates made to the local clock. . ... . . WiFi-Nano : Reclaiming WiFi Efciency through 800 ns 802.11 recommends 600ns as the switching time. Speed of light propagation : RF waves travel a distance of 100m in approximately 330ns. Thus, if two devices are 100m apart, then their carrier sensing and notion of slot boundaries may be 330ns apart. Slots must accommodate these delay... Throughput and delay analysis of IEEE 802.11 protocol