Micro cell Wi-Fi meltdown

May 2011 Infrastructure

Fourth generation Meru Virtual Cell Technology leaps into the future.

The growing number of wireless devices and wireless applications are the driving force behind the most significant trend we see in the market – the fundamental failure of legacy microcell wireless networks to handle high-density environments, what is referred to as the ‘Wi-Fi meltdown’.

What is considered a high-density environment? As employees, customers, and hotel guests introduce two to three wireless devices each at any given location, the ability to support 80, 84 or anything less than 100 wireless devices is simply not enough. Meru defines high density as an environment which supports over 500 wireless devices – like a convention centre, campus auditorium or hotel lobby. A meltdown happens when the wireless LAN fails to support hundreds of wireless devices at a time.

The world took notice at the WWDC Conference in San Francisco in June 2010, when Steve Jobs attempted to launch the demonstration announcing their widely anticipated iPhone 4, but the demonstration derailed by overloaded airways as over 1100 attendees attempt to go online at the same time.

Once again MWC 2011 kicked off with zero Wi-Fi. SA’s most prominent networking and Wi-Fi vendor took a look around at the thousands of attendees, declared itself overloaded and packed it in.

Why does a Wi-Fi meltdown happen?

The problem here is microcell. This inherent desire of enterprise Wi-Fi microcell-based equipment to avoid interference and operate as if it does not exist, in particular the ones that attempt to adapt to changing RF conditions, causes high susceptibility to RF interference and noise and creates a network with a single point of failure at the users’ connection, particularly in high user-density situations. When Wi-Fi was initially adopted by the enterprise, it was deployed primarily as a spot network – conference room here and there, the commons areas, etc – basically a network of convenience.

What they never envisioned was today’s explosion of devices coupled with pervasive coverage needs of a primary access network and its implications on the underlying deployment architecture. Simply adapting radio signals does not work in these situations. Continuously avoiding other APs, at some point, breaks down and significantly affects clients attached to the network. Adapting is an attempt to compensate for poor architectural design that forces the IT staff into labour intensive designs and increases the technical requirements on support staff in terms of what training is required to run the network. Unfortunately, as user growth continues to outpace all expectations, adapting falls far short of solving the problem.

How to avoid a Wi-Fi meltdown

Meru’s virtualised architecture is purpose-built to support the proliferation of wireless devices and applications and more critically, avoid a Wi-Fi meltdown. This is demonstrated in its WLAN 500, where it took over 500 iPhones, iPads, and other wireless devices in a 500 square foot area – streaming voice, video and data concurrently. Meru’s architecture, based on virtualisation, is designed from the ground up to account for interference and work with it, for two simple objectives:

Make Wi-Fi support enterprise mobility – whether it is small enterprises or large conventions.

As the RF gets more complicated and users increase, place the burden of managing RF and everything going on over to the system and allow IT to do what it does best – manage networks and IT systems.

To see what is possible on a Virtual Cell wireless infrastructure, view the video at http://www.merunetworks.com/technology/resources/videos/index.php.

For more information contact Core Networks, +27 (0)11 314 3124, [email protected],





Share this article:
Share via emailShare via LinkedInPrint this page



Further reading:

Upgrade your PCs to improve security
Information Security Infrastructure
Truly secure technology today must be designed to detect and address unusual activity as it happens, wherever it happens, right down to the BIOS and silicon levels.

Read more...
The hidden cost of cheap networking gear
Duxbury Networking Infrastructure
When it comes to building a network, price is always a consideration, especially in the current economic climate, but there is a difference between smart spending and short-term savings with long-term losses.

Read more...
Open source code can also be open risk
Information Security Infrastructure
Software development has changed significantly over the years, and today, open-source code increasingly forms the foundation of modern applications, with surveys indicating that 60 – 90% of the average application's code base consists of open-source components.

Read more...
Fastest PCIe Gen 5.0 NVMe SSD
Products & Solutions Infrastructure
Sandisk has unveiled the WD_BLACK SN8100 NVMe SSD with PCIe Gen 5.0 technology, an internal SSD delivering speeds up to 14 900 MB/s and capacities up to 4 TB, with 8 TB solutions available soon.

Read more...
Unified storage solution
Products & Solutions Infrastructure
CASA Software has announced the local availability of Nexsan’s upgraded unified storage solution, Unity NV4000, which is ideal for mixed workloads, from virtualisation and video surveillance to secure backup and recovery.

Read more...
Suprema unveils BioStar Air
Suprema neaMetrics News & Events Access Control & Identity Management Infrastructure
Suprema launches BioStar Air, the first cloud-based access control platform designed to natively support biometric authentication and feature true zero-on-premise architecture. BioStar Air simplifies deployment and scales effortlessly to secure SMBs, multi-branch companies, and mixed-use buildings.

Read more...
Back-up securely and restore in seconds
Betatrac Telematic Solutions Editor's Choice Information Security Infrastructure
Betatrac has a solution that enables companies to back-up up to 8 TB of data onto a device and restore it in 30 seconds in an emergency, called Rapid Access Data Recovery (RADR).

Read more...
Advanced surveillance storage from ASBIS
Infrastructure Surveillance Products & Solutions
From a video storage solutions perspective, SkyHawk drives, designed for DVRs and NVRs, offer high capacity, optimised firmware, and a reliability workload rating of hundreds of terabytes per year.

Read more...
Power surges are killing our networks
Duxbury Networking Infrastructure
With power surges and lightning strikes becoming an all-too-familiar threat to South African infrastructure, Duxbury Networking is calling on local installers and network integrators to follow proper grounding protocols.

Read more...
A passport to offline backups
SMART Security Solutions Technews Publishing Editor's Choice Infrastructure Smart Home Automation
SMART Security Solutions tested a 6 TB WD My Passport and found it is much more than simply another portable hard drive when considering the free security software the company includes with the device.

Read more...










While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd. | All Rights Reserved.