Wireless Technology

Introduction to Wireless Technology

WiFii - IEEEi 802.11bi, aka "WiFi" or wireless Ethernet. Operates in the 2.4 GHz spectrum, and is capable of about 11 Megabits/second data transmission speeds.

WiFi5 - IEEE 802.11ai, aka "WiFi5." Operates in the 5-GHz UNII spectrum, and is It's capable of about 54 Megabits/second data transmission speeds. Because of the higher frequency, it has a more limited, "line of sight" range.

UMTS 3G, aka "Third Generation" or 3G communications, which hooks a cell phone up to be your Internet connectivity and everything else. Due to the high cost of frequencies and equipment, deployment of 3G has been slow, and there have been major technology glitches. Carrier are slowly divesting from this technology.

Bluetooth, a one Megabit, very short range system, used by various devices to connect to your desktop computer. For example: a cell phone, a handheld PDA, or audio system, all within 30 feet of each other.

WiMAX is defined as Worldwide Interoperability for Microwave Access by the WiMAX Forum, formed in April 2001 to promote conformance and interoperability of the standard IEEE 802.16, also known as WirelessMAN. The Forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL."

ZigBee is the name of a specification for a suite of high level communication protocols using small, low-power digital radios based on the IEEE 802.15.4 standard for wireless personal area networks (WPANs).

Open Systems

Xwire networking software is based open systems software and reusable modules. Xwire bases its software solutions on open building blocks such as Linux and the Internet Protocoli. Xwire wants to provide the most open and flexible wireless systems to adapt to your networking requirements.

Wireless Security

Radio Frequencyi (RF) has an inherent ability to go through physical barriers (e.g., walls). This presents an immediate security problem, because the most common security model for wired LANs is achieved by limiting physical access to a building, thereby controlling access to the wall jacks that are the physical edge of the network. However, aside from the physical barriers that prevent eavesdropping, there is no real difference as to how security should be treated between a wireless Ethernet network interface cardi (NIC) and a wired Ethernet NIC.

Xwire Router provide AP-to-AP security integrated directly into the network operating system. Unlike the Wireless Encryptioni Protocol (WEPi), the Xwire network uses superior and reliable Virtual Private Networki (VPN) security, which network administrators already trust and know how to manage. As long as the VPN gateway and the access pointi are outside the firewall, all traffic will be encrypted, regardless if it is wireless or wired.

Network Administration

Wired to wireless access integration: You don't need to build a whole new user authorization system. You can use the existing LAN authentication services of your WLANi, such as RADIUS, LDAP, and NT Domain, and take advantage of the user authorization data that is already available on your network.

Secure mobility: With the Xwire Router's Layer 3 intelligence, you can authorize and apply access rights and services to your users as they roam, according to their dynamic state in the network (identity, location, application, time of day, etc.)

Scalable access and traffic management: You can expand your WLANs securely and reliably, with only incremental increases in capital and operational costs. The Xwire equipment supports centralized security configuration and traffic management for hundreds of wireless access points and thousands of wireless users.

End user support: You can achieve all of the above without asking your end users to change their behavior as they change devices or move to new locations. On an Xwire network, end users may expect secure WLAN connectivity without any special client hardware, software, or configuration.

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