WLAN Design for High Density

By ozerdo Unpublished

Attached is the presentation from Airheads Vegas 2012. A similar version was also presented at Airheads Rio 2010 and Airheads Dallas 2011. Itis a must for wireless networking engineers who are challenged with supporting environments such as auditoriums, classrooms, meeting rooms where high density of mobile devices need to connect to the wireless network. Topics of discussion will include capacity planning, RF design strategies (floor, side, overhead coverage) and real world examples.

Topics covered include:

Why are high density environments so challenging?

  • Shared Medium Access
  • 数量有限of Channels
  • Co-Channel Interference
  • Limited number of 5 GHz capable clients
  • 客户行为不良
  • Application Delivery Throughput Requirements

如何执行能力计划?

  • Device count
  • 频道计数
  • 每个设备目标性能
  • Total reserve vs. capacity
  • Validation of capacity goal

What are the RF design strategies?

  • Overhead coverage (ceiling mount APs)
  • Side coverage (wall mount APs)
  • Floor coverage (under the floor APs)
  • Adjacent HD WLANs

How to configure ArubaOS for HD WLANs?

  • Optimal channel distribution
  • Optimal client distribution
  • 最佳功率控制
  • Optimal airtime management

现实世界的例子

  • 大学礼堂,322个席位
  • 8x AP-125s, HT20 11n design
  • ~50 laptops, ~350 iPhones + iPods



附件

2012 AH Vegas - WLAN Design for High Density.pdf
2条评论
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注释

2012年1月4日,下午3:05

@frame - thanks! noted.

Dec 29, 2011 10:28 AM

Table on slide 18 seems to be incorrect concercing europe : refer to 2005/513/CE

the whole 5 470 - 5 725 MHz is available, therefore channels 120-132 are usable (like in Japan)