802.11 Wireless Networks: Security and Analysis by Alan Holt PDF

By Alan Holt

ISBN-10: 184996274X

ISBN-13: 9781849962742

Wireless conversation has the good thing about mobility and obviates the necessity for cabling, yet is inherently much less safe and is topic to the heavy rules of the radio frequency spectrum. however, the allocation of unlicensed components of the spectrum has facilitated the expansion in instant neighborhood quarter networks (WLANs). WLAN know-how is progressing at a quick speed, however the most generally authorised WLAN commonplace is the IEEE 802.11.

This particular and hugely useful textual content introduces the rules of WLANs established upon the IEEE 802.11 criteria, demonstrating how one can configure apparatus on the way to enforce quite a few community suggestions. Readers will achieve figuring out of the protection implications of instant networks and find out how vulnerabilities will be mitigated. also, the publication examines the underlying 802.11 protocols and explains the best way to construct mathematical versions in an effort to examine functionality in a WLAN environment.

Topics and Features:

  • Presents a realistic method supported by way of the vast use of examples and exact instructions
  • Discusses quite a few instant community recommendations throughout a few diversified seller structures, together with Cisco Aironet, Alactel-Lucent Omniaccess and Meru Networks
  • Provides a number of mathematical types for interpreting the functionality of IEEE 802.11 criteria, and exhibits find out how to construct those types utilizing Maple
  • Examines problems with instant protection and describes how one can enforce a instant community with firm security
  • Investigates the medium entry regulate sub-layer, and versions for functionality research of the MAC layer
  • Reviews the actual sub-layers of 802.11, describing modulation innovations and interpreting how units adapt to adjustments within the RF environment.

A hugely worthy text/reference for execs, undergraduate and graduate-level scholars also will locate this ebook an incredible significant other to a college path on instant networking.

Dr. Alan Holt is leader Technical Officer on the community consultancy corporation IP functionality Ltd., dependent in Bristol, united kingdom. he's writer of the preferred Springer textual content Network functionality research: utilizing the J Programming Language.

Dr. Chi-Yu Huang works for Tata applied sciences Ltd., and is at the moment a software program advisor at the Airbus undertaking in Bristol. She was once previously Operations supervisor for DL Consulting, New Zealand.

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Additional resources for 802.11 Wireless Networks: Security and Analysis

Sample text

If any interference is detected, the access-point instructs other devices in the BSS to cease transmitting. The access-point then identifies a new channel and informs the devices to switch over to it. Non-access-point devices are not required to do interference detection, provided they operate under the control of an access-point that does. Devices that do have interference detection capabilities will inform the access-point if it detects a primary user (or another wireless network). The access-point defines quiet periods during which devices may scan the channel.

Additional services are supported in infrastructure mode (by the access-point); for example, association, re-association and disassociation. A brief description of these services is outlined here. Before a device can send or receive frames over the (BSS/ESS) WLAN, it must make itself known to the access-point by associating with it. When a device moves from one BSS to another, it must undergo a re-association with the new access-point. A device disconnects from BSS by issuing a disassociation request to the access-point.

There are three categories of radio band allocation: • Licensed • Open • Unlicensed For licensed bands, licenses are granted by the regulatory bodies to organisations for exclusive rights to use a particular frequency band. Deciding who has the right to use the spectrum is not straightforward, but regulatory bodies employ a number of methods: • • • • First come first served Lottery Administrative process Auction The first come, first served and lottery methods are seldom used. In the past, the regulatory bodies have favoured the administrative process; however, auctions have become popular in recent years.

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802.11 Wireless Networks: Security and Analysis by Alan Holt

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