Network_Impact_Of_802.11n
While 802.11n will bring advances in bandwidth, throughput and reliability to the WLAN, it may have unforeseen impacts on the network.
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Wireless LANs: Assuring Enterprise Security and Identity Awareness
Security must be designed into every aspect of the wired and wireless network. If it's not, the enterprise faces serious consequences from internal and external vulnerabilities. At a time when organizations are converging their voice and data infrastructures, expanding access to their communications network to meet the needs of an increasingly mobile workforce, and complying with government regulations like Sarbanes Oxley, it is critical that enterprises ensure edge to core security.
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The Effects of Interference on General WLAN Traffic
This document contains the results of a series of experiments using the above-mentioned methodology on general, non-time-bounded WLAN traffic. These experiments were performed in a typical office environment, with careful monitoring for interference other than that introduced as part of the experiment.
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802.1x White Paper
The IEEE 802.1x standard manages port-based network access. It authenticates devices attached to a LAN port by initiating a connection and requesting login details. Access is prevented if authentication fails.
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WLAN RF Architecture Primer: Single-Channel and Adaptive Multi-Channel Models
In this paper we examine one of the questions central to the technology debate: the advantages and disadvantages of the single-channel RF architecture when compared to the adaptive, cellular-like alternative. The RF model is a significant aspect of WLAN architectures, and as we shall show, the initial selection of a single-channel model drives significant consequences, both good and bad. This article compares the two models in technical detail, allowing the reader to follow the science behind marketing claims, and develop an informed and objective opinion of the merits of vendors' solutions.
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Capacity of Wireless Mesh Networks
Understanding Single Radio, Dual Radio and Multi-Radio Wireless Mesh Networks
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Sectored Wi-Fiâ„¢ Architecture Benefits
This White Paper details the issues surrounding the use of legacy Omni-directional access points that populate today's Wi-Fi networks and presents how Xirrus' sectorized Wireless LAN (WLAN) architecture addresses these issues; creating a high-performance, scalable Wi-Fi network
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Demystifying MIMO
Multiple Input Multiple Output (MIMO) Technology is poised to make a significant impact in the overall performance of Wireless LANs (WLANs). This paper introduces the concept of MIMO and discusses the architectural differences from traditional Single Input Single Output (SISO) systems. System implementation options are outlined and the advantages and capabilities of both full and partial MIMO implementations are discussed in the context of the architectures. Several examples of the benefits of MIMO and test data are presented. Finally, the implications and timing of IEEE 802.11n are described.
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Building Business Agility and Efficiency with Network-Powered Mobility
A growing number of companies are working with Cisco® Systems to turn existing infrastructures into intelligent infrastructures that unify wireless and wired networks. Organizations can then securely and cost-effectively extend mobility services across a variety of mediums and devices. This enterprise wide architecture approach reduces operational costs and security threats as it increases the user's ability to access resources wirelessly. Read further to see how Cisco is helping to build business agility and efficiency with network-powered mobility services such as location services, advanced security services, guest access services, and voice services.
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Five Steps to Securing Your Wireless LAN and Preventing Wireless Threats
Wireless LANs (WLANs) bring incredible productivity and new efficiencies to organizations of all sizes. Advances in WLAN features and capabilities allow organizations to offer the benefits of wireless to their employees without sacrificing security. Properly deployed, WLANs can be as secure as wired networks. This paper discusses the five steps to creating a secure WLAN infrastructure.
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Mobility Solutions Extend Cisco Unified Communications
Organizations worldwide have reworked their business processes to take advantage of such powerful new technologies as the Internet, IP communications, and mobility. But with an explosion of ways to reach fellow employees-mobile phone, e-mail, instant messaging, and voicemail-too often employees still cannot reach one another efficiently. The result is delays in business processes as project participants must wait for returned phone calls or e-mail before proceeding.
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Building the Mobile Business with a Unified Wireless Network
Decision making is happening at Internet speed. Providing access to information in real time has emerged as a new challenge for IT and presents the business with an opportunity to create sustainable competitive advantage. To respond to market demands, businesses require fluidity of information to enable decision makers and employees to be more productive. Mobility is enabling enhanced productivity by delivering real-time access to information and bridging the gap between resources and individuals.
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Is your WLAN putting your PCI compliance at risk?
Colubris Networks helps you shore-up your Wireless LAN vulnerabilities
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Future-Proofing Your WLAN for Next-Generation Voice, Video and Data Applications
Enterprises need their wireless infrastructure to be future-proof, similar to their wired Ethernet network. Unfortunately, as they try to add voice and other multimedia applications to the wireless local area network (WLAN), many enterprises today are discovering that their wireless infrastructure is anything but future-proof.
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Managing a mobile enterprise
The use of mobile devices is growing exponentially as companies look for ways to support a workforce that requires easy, remote, and wireless access to the Internet, e-mail, and other applications in their personal lives and within the workplace. Many companies have already implemented mobility solutions to address specific business requirements, such as deploying a sales automation application to their remote sales force. As the functionality of mobile devices increases, companies are looking to expand their use of this technology from supporting niche applications to delivering enterprise-wide solutions.
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Fulfilling the Promise of 802.11n in the Enterprise without Compromise
The IEEE 802.11 committee has developed a new standard for wireless communication called 802.11n, which supports over 6 times the peak data rate of the current 802.11a/g standards. More than any previous standard, 802.11n is a complex framework that encompasses a variety of different options for spectrum usage, antennas, physical layer encoding, and medium access layer enhancements.
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Distributed Network Architecture for WiMAX
The world is moving to IP and service providers in all geographies are embracing the shift. Leveraging the IP foundations of WiMAX technology and the demonstrated benefits of IP systems including rapid cost declines and ease of management, a distributed WiMAX network architecture takes the service provider community one step closer to differentiating their services in a digital, converged, mobile IP world.
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Making the Case for AMI and ROI: Taking automated meter reading (AMR) to the next great level
This report examines an oft-touted application that financially justifies a number of muni wireless initiatives, advanced meter infrastructure - AMI. You are probably familiar with the more commonly used term, AMR - automated meter reading. AMR is used a lot to describe anything related to reading a meter without having to walk up and eyeball it. AMI is different in that it more accurately describes the application that muni wireless is enabling.
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Mesh Technology Primer
The Evolution of Wi-Fi: From Hot Spots to Hot Zones to Municipal Networks
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Rogue Access Point Detection
One of the most challenging security concerns for IT managers today is the rogue wireless access point. As 802.11 technologies continue to become more popular, less expensive, and easier for end users to install, the threat to corporate network security increases.
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Wireless Networks for Security and Surveillance Applications
This paper attempts not to favor one type of camera or recording technology over another, but offers an explanation of consideration for both - and how to use the benefits of Wireless to aid deployment. For any enterprise or organization that has been challenged by outdoor conditions, distance, lack of network connectivity, or simple fear of "new" technology when implementing a monitoring and surveillance system - Wireless IP-Surveillance is in your future.
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802.11n & Wi-Fi Telephony
With the Wi-Fi Alliance recently launching the 'Draft 802.11n' certification program and IEEE expected to complete the standard in late 2008, there is much industry buzz about what this means to the market, vendors, and most importantly, customer decisions about the technology. The bottom line is that customers can confidently move forward with 802.11n within a timeframe that fits their Wi-Fi applications needs and, at the same time, be assured that current SpectraLink Wireless Telephones will continue to be interoperable as their wireless network evolves.
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Who Leads in WLAN Security?
Comparative Evaluation of Vendor Offerings and Positioning
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Delivering the Best User Experience with Voice over Wi-Fi Applications
Voice over Wi-Fi allows users to make and receive voice calls over their Wi-Fi networks. It is rapidly gaining popularity as more voice-capable devices, such as dual-mode phones with cellular and Wi-Fi technology, become widely available. Growth in the widespread use of voice over Wi-Fi in the consumer market is expected to accelerate over the next few years, driven by the forthcoming availability of Wi-Fi CERTIFIEDâ„¢ equipment that supports good voice quality.
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High Performance Wi-Fi Networks
The Wi-Fiâ„¢ market of today offers IT administrators a variety of IEEE standards for deploying high performance, scalable wireless networks. These standards include IEEE 802.11b, 802.11g and 802.11a. This White Paper contrasts the major differences between these standards as they apply to enterprise-class deployments and offers recommendations in the deployment of a Wi-Fi network.
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Wireless Networking
In a little more than a decade, wireless has grown from an obscure and expensive curiosity into a practical and affordable networking technology. Today's most common wireless standard is 802.11g Ethernet, also often called Wi-Fi (Wireless Fidelity). 802.11g is fast enough to be practical and affordable enough for home networks. You can buy the components to set up a wireless network in nearly any store that sells computers.
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