You are here: silicon.com > Resources > White Papers > Networking and Communications > Mobile and Wireless > Wi-Fi (802.11)

Wi-Fi (802.11) White Papers

Experimental Evaluation of 802.11e EDCA For Enhanced Voice Over WLAN Performance

Overview The 802.11e MAC protocol extends the 802.11 CSMA/CA contention mechanism by allowing the adjustment of MAC parameters that were previously fixed. While the 802.11e protocol has been extensively studied, the work discussed in this paper is almost entirely confined to analytical and simulation studies. This paper demonstrates a technique for measuring one-way delay in an 802.11e hardware testbed and thereby studies delay in the context of protecting a voice call competing against data traffic. The paper demonstrates that with the standard 802.11b MAC settings greedy data traffic is able to seize bandwidth from a low-rate voice call.

Further White Paper Details
Publisher	National University of Ireland, Maynooth	File Format	PDF
Date Published	January 2009	Downloads	1
Format	White Papers
Topics	Wi-Fi (802.11), Mobile - Wireless Communications, Wireless LAN

Did you find this white paper useful? 7 out of 12 users found this white paper useful

White Space Networking With Wi-Fi Like Connectivity

Networking over UHF white spaces is fundamentally different from conventional Wi-Fi along three axes: spatial variation, temporal variation, and fragmentation of the UHF spectrum. Each of these differences gives rise...

Publisher:
Association for Computing Machinery

Tags:
mobile - wireless communications

Wireless Home Networking and Microsoft Windows XP Service Pack 2

Microsoft Windows XP Service Pack 2 (SP2) helps make it easier to locate and connect to wireless networks in your home or in a wireless hot spot. This webcast will...

Publisher:
Microsoft

How a Spanning Tree Works

The way a switch learns Ethernet (MAC) addresses is by inspecting the Ethernet frame and recording the source MAC address in a dynamic table. The switch will also associate a...

Publisher:
Global Knowledge

Case Study: D-Link Brings Affordable, Single Network Wi-Fi Solution to Redeemer University College for Enhanced Internet Access and Reliability

Redeemer University College is an undergraduate Christian liberal arts and science university committed to academic excellence. Redeemer University College was being hindered by its spotty, unreliable Wi-Fi network that was...

Publisher:
D-Link

Tags:
wi-fi (802.11)

TANDBERG and Wireless LAN- Configuration example

Configuration example with Compaq AP and Compaq WLAN card.

Publisher:
Tandberg

MPLS: The icing on the networking cake?

Iain Stevenson, networking analyst at Ovum, put it like this: "MPLS is a mechanism for labelling traffic flows to define a path through a complex network. If all packets are sent using IP, the shortest points between popular destinations can become...

Channel:
Comment & Analysis

Football sites stagger under data traffic

Even top name sites struggled to deal with the volume of traffic. It's been the most surprising contest in World Cup history, but one prediction has come true - World Cup sites have been staggering under the weight of online football fans.

Channel:
WebWatch

Telco-friendly Ethernet 'ready for action'

The MEF specifications couch network parameters in terms which telcos will understand, including "Ethernet virtual circuits", which mimic the virtual circuits on ATM networks, and "committed information rates" and "peak information rates" like...

Channel:
LANs
Tags:
ethernet

VoIP primer: How it works - and what the jargon means

On private networks - LAN, WAN or in the carrier's core - application performance can be assured using two distinct quality of service parameters: DiffServ and MPLS. The problems of packet loss, delay and jitter are exacerbated when voice traffic...

Channel:
VoIP
Tags:
voip

McAfee to clean C&W customer data traffic

But the welter of phishing scams, spam and viruses travelling over exchanges means the processes of cleaning data within the perimeter has become unworkable and uneconomical to the business, with the majority of bandwidth used simply for carrying...

Channel:
Security Strategy
Tags:
c&w,
mcafee

Cisco flags flaws in VoIP and router software

After a delay, the device will reset, the company said. A feature called the Stack Group Bidding Protocol in certain versions of IOS is vulnerable to a remotely exploitable denial of service condition, according to a company advisory.

Channel:
Security Strategy
Tags:
flaw,
voip,
cisco

Featured White Papers

The Value of Location Intelligence in the Communications Industry

Public Services are under pressure, the challenge is to do more with less. How do you improve citizen satisfaction, increase cost efficiencies and improve service delivery? The power of location intelligence is helping many local authorities and government departments make more informed decisions and derive greater value from current location-based information and data. Read this whitepaper to see how you can take advantage of location intelligence.

Publisher:
Pitney Bowes

Best Practices for Translating Customer Satisfaction into Revenue

Today's support organisations are focused on two top-level metrics: financial results and customer satisfaction. For most, it's easy to track financial performance, but customer satisfaction is akin to speaking a foreign language. How do you quantify customer satisfaction? Download the Best Practices for Benchmarking Customer Satisfaction to get industry research the Association of Support Professionals (ASP) on how to measure and leverage customer satisfaction.

Publisher:
Citrix Online

HP print solutions and 3M

the objective for 3M was to optimize office printing infrastructure at 3Mlocations worldwide Reduce total cost and environmental footprint. Some of the business benefits acheived by switching to HP print soultions, More than $3 million in savings in first two years and Per page costs reduced by up to 90 percent.