Wi-Fi on Steroids: IEEE 802.11n

2 Day Course
Code PWS062

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Scheduled Online Onsite

Overview

The 802.11n standard adds a whole new dimension to Wi-Fi  by boosting raw data rates from the 54 Mbps of 802.11g and 802.11a to a huge 300 Mbps. 600 Mbps will emerge soon. There are 802.11n products available so how should your organisation use it? How do you migrate to it, do you run two standards? These and other questions are addressed.

The new standard has adopted the use of MIMO antennas. This technology is also being used by Mobile WiMAX and LTE so an understanding of this is included.

As well as 802.11n, the IEEE 802.11 committee have been busy with a range of standards, both issued and in progress. This course will summarise these to provide an up to date  view of the whole wireless scene including both issued and work in progress.

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Modules

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802.11n Overview (11 topics)

  • High Throughput, not just High Speed
  • Principles
  • Physical Improvements: Spatial Streams
  • Channel Bonding
  • Frame Aggregation
  • Precoding
  • OFDM Changes: More Subcarriers
  • Guard Band Change Option
  • FEC Changes
  • Backward Compatibility Modes
  • The CSIRO Patent Issue

Standards Update (3 topics)

  • Consolidating of Standards
  • New Standards
  • Ongoing Work

Refresher on 802.11a/g (3 topics)

  • Principles
  • Frames
  • OFDM

802.11n MAC Changes (3 topics)

  • Packet Aggregation
  • Block ACK
  • Reduced Interframe Spacing

Antenna Technology: A Refresher (7 topics)

  • Reciprocity
  • Basic Antennas
  • Gain: dBi and dBd
  • Beam patterns
  • Multipath and Inter Symbol Interference
  • Diversity Techniques.
  • Antenna Mounting Practice

MIMO Antenna Systems (3 topics)

  • Space-Time Diversity Coding
  • Spatial Multiplexing
  • MIMO Syntax in 802.11n

Antennas in 802.11n (2 topics)

  • Beamforming Antennas
  • 802.11n Antenna Configuration Syntax

Implementation Issues (6 topics)

  • Coverage Planning for 802.11n
  • Backwards Compatibility Modes
  • High Throughput all 802.11n Mode
  • Mixed 902.11n with 802.11a/b/g devices
  • Legacy Emulation Mode
  • 802.11n in Mesh Mode

Roundup of other recent IEEE 802.11 Work (3 topics)

  • 802.11w
  • 802.11.2
  • IEEE 802.11p

Relevant Certifications

What Our Customers Say

The training was delivered with a high level of expertise and excellence. Instructor was highly knowledgeable.”

Technical Trainer, Aviat Networks

Overall the course was really good, the trainer really understood the material and was very approachable.”

Customer Training Manager, Aviat Networks

Excellent course, informative and well-paced.”

CSE, Cisco

Course was very well outlined. Topics were great and bridged many gaps.”

System Engineer, Cable & Wireless

An excellent intro to video encoding & MPEG transport streams - I would definitely recommend it.”

Broadcast Engineer, Cisco

Definitely an excellent intro. Left me interested in learning more.”

Broadcast Engineer, Eircom

Excellent training course with real examples and practical classroom demonstrations.”

Transport Designer, Orange

Instructor knowledge and experience was excellent.”

Solutions Engineer, Akamai

Excellent course, very clear and well organised. Course content delivery was very good.”

Assistant Engineer, Dhiraagu

Very informative and appropriate.”

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