Improving the Real-Time Performance of a Wireless Local Area Network

Released on by Rusty O. Baldwin
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  • Improving the Real-Time Performance of a Wireless Local Area Network Book Detail

  • Author : Rusty O. Baldwin
  • Release Date : 1999-11-01
  • Publisher :
  • Genre :
  • Pages : 372
  • ISBN 13 : 9781423541967
  • File Size : 46,46 MB
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Improving the Real-Time Performance of a Wireless Local Area Network by Rusty O. Baldwin PDF Summary

Book Description: This research considers the transmission of real time data within a wireless local area network (WLAN). Exact and approximate analytic network evaluation techniques are examined. The suitability of using a given technique in a particular situation is discussed. Simulation models are developed to study the performance of our protocol RT-MAC (real time medium access control). RT-MAC is a novel, simple, and elegant MAC protocol for use in transmitting real time data in point to point ad hoc WLAN. Our enhancement of IEEE 802.11, RT-MAC, achieves dramatic reductions in mean delay, missed deadlines, and packet collisions by selectively discarding packets and sharing station state information. For example, in a 50 station network with a normalized offered load of 0.7, mean delay is reduced from more than 14 seconds to less than 45 ms, late packets are reduced from 76% to less than 1%, and packet collisions are reduced from 36% to less than 1%. Stations using RT-MAC are interoperable with stations using IEEE 802.11. In networks with both RT-MAC and IEEE 802.11 stations, significant performance improvements were seen even when more than half of the stations in the network were not RT-MAC stations. The effect of the wireless channel and its impact on the ability of a WLAN to meet packet deadlines is evaluated. It is found that, in some cases, other factors such as the number of stations in the network and the offered load are more significant than the condition of the wireless channel. Regression models are developed from simulation data to predict network behavior in terms of throughput, mean delay, missed deadline ratio, and collision ratio. Telemetry, avionics, and packetized voice traffic models are considered.

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Improving the Performance of Wireless LANs

Improving the Performance of Wireless LANs

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While there are countless books on wireless networks, few actually quantify the key performance-limiting factors of wireless local area networks (WLANs) and des

Improving the Performance of Wireless LANs

Improving the Performance of Wireless LANs

File Size : 8,8 MB
Total View : 2336 Views
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While there are countless books on wireless networks, few actually quantify the key performance-limiting factors of wireless local area networks (WLANs) and des

Improving the Performance of Wireless LANs

Improving the Performance of Wireless LANs

File Size : 35,35 MB
Total View : 2799 Views
DOWNLOAD

While there are countless books on wireless networks, few actually quantify the key performance-limiting factors of wireless local area networks (WLANs) and des