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The forecast where a technology will be on the future of wireless LAN The current level of wireless technology The development of wireless networking The influence on the future of wireless LAN The trend of the time of wireless networking Background In June, 1997 the IEEE, the body that defined the dominant 802. 3 Ethernet standard, released the 802. 11 standard for wireless local area networking. IEEE 802. 11 standard supports transmission in infrared light and two types of radio transmission within the unlicensed 2. 4 GHz frequency band: Frequency Hopping Spread Spectrum (FHSS) and Direct Sequence Spread Spectrum (DSSS). The followings are development of wireless standards: Local Area Networks (IEEE 802) Wired Ethernet (IEEE 802. 3) Wireless Ethernet (IEEE 802. 11) High Rate Wireless Ethernet (IEEE 802. 11 b) Mode 2. 4 GHz/ 54 Mbps Wireless Ethernet (IEEE 802. 11 g) 5 GHz Wireless LAN/WAN (IEEE 802. 11 a) Wireless Personal Area Network (IEEE 802. 15) Fixed Broadband Wireless Access (IEEE 802. 16) European 5 GHz/ 54 Mbps WAN (Hiper LAN 2) Short Distance Device Interconnectivity (Bluetooth); Home RF Wireless LAN Wide Band Frequency Hopping (WBFH) Current Technology The most sparkling stars of wireless networking technology today is IEEE 802. 11 b. The 802. 11 b wireless networking has enjoyed a rapid increase in adoption in enterprise settings and in educational and institutional networks.
More recently, particularly in the past year as adapter and access point prices have lowered dramatically, 802. 11 b wireless network products have been making inroads into home and SOHO applications. Initially, the demand for 802. 11 b in the home was driven by people who used a wireless-equipped notebook computer at work, and then took it home and wanted the same freedom from wired connection there too. As prices for wireless components came down, and as home networking to share broadband Internet connections increased, 802. 11 b was and still is the go-to choice, even in households to which no one comes home with a wireless-enabled notebook from work. Development of wireless technology The interference and performance issues at 2. 4 -GHz have the wireless LAN industry headed for the open 5 -GHz frequency band, where the opportunity exists for a much cleaner wireless networking environment. Similar to the 2. 4 -GHz band, the 5 -GHz spectrum does not require a license for use throughout much of the world. In addition, 5 -GHz is void of interference from microwaves and has more than twice the available bandwidth of 2. 4 -GHz, thereby allowing for higher data throughput and multimedia application support.
The open 5 -GHz spectrum offers an opportunity for the industry to create a unified wireless network for a broad range of devices and applications. IEEE 802. 11 a and ETSI (European Telecommunications Standards Institute) Hiper LAN 2 wireless LAN standards. This 5 -UP (5 -GHz Unified Protocol) proposal supports interoperability with the existing standards, while providing for increased scalability both up and down. Whereas the IEEE 802. 11 a and ETSI Hiper LAN 2 wireless standards support 6 to 54 Mbps, 5 -UP allows devices to operate from 128 Kbps to 108 Mbps in 128 Kbps increments. With 5 -UP enhancements, a wide range of devices-stretching from low to high data rates-can all communicate on a single wireless network. Everything from cordless phones to high-definition televisions and personal computers can communicate on the same multipurpose network under a single unified protocol.
Intel Corporation integrated, "wireless-Internet-on-a-chip" technology could enable a new era of wireless Internet-access products with extensive battery life and greater processing power. The new research chips feature logic (microprocessor), flash memory and analog communications circuits on a single piece of silicon built using a single manufacturing process. Each of these types of circuits is traditionally manufactured on separate process technologies in different factories. Chips produced on the new process may be up to five times more powerful than those used in today. Could mundane wireless local area networks (WLANs) eat into the profit potential of flashier third-generation (3 G) mobile carriers?
A flurry of reports this week seems to indicate that this is entirely possible. The growth of public WLAN "hotspots" in airports, hotels, libraries - even coffee shops - portends revenue from wireless LANs skyrocketing to $ 868 million by 2006. In 2000, money from WLANs raked in just over $ 1 million. Fueling the increased interest in WLANs is the relative and growing ease of availability of fast Internet access for handhelds and the increasingly common use of wireless networks in the home and office, say analysts. The ease of installing and using WLANs is making it an attractive alternative to mobile 3 G.
In contrast to the reported $ 650 billion spent worldwide by carriers to get ready for 3 G, setting up a WLAN hotspot requires only an inexpensive base station, a broadband connection, and one of many interface cards using the 802. 11 b networking standard now available for your laptop, PDA, or smart phone. Will WLANs supplant 3 G? No, aside from the fact that the two technologies use different radio frequencies, they are also targeting different markets. Where 3 G is mostly phone-based and handles both voice and data, WLAN is a purely data-driven creation.
Conclusion High bandwidth of wireless networking environment and more powerful chips will integrate the new era of wireless networking. Then, wireless networking will be more convenience. Today, the WLAN has redefined what it means to be connected. It has stretched the boundaries of the local-area network. It makes an infrastructure as dynamic as it needs to be. In the future wireless world, the freedom to access real-time information anywhere, anytime not within a building or multi-building complex anymore.
Wireless networking can be configured to meet the needs of a specific application, from enterprise environment, to small business or even home applications. Bibliography web web web web J. Walker, Unsafe at any key size: an analysis of the WEP encapsulation, Tech. Rep. 03628 E, IEEE 802. 11 committee, March 2000. web Document Holder/ 0 - 362. zi%p.
N. Borisov, I. Goldberg, and D. Wagner, Intercepting Mobile Communications: The Insecurity of 802. 11. web edu / isaac /wep-faq.
html. L. Black and J. Vollbrecht, PPP Extensible Authentication Protocol (EAP), Tech. Rep. RFC 2284, Internet Engineering Task Force (IETF), March 1998.
Lucent Orinoco, Users Guide for the ORiNOCO Managers Suite, November 2000. J. Walker, Overview of 802. 11 security. web TG 3 %-Overview-of- 802 - 11 -Security.
ppt, March 2001. IEEE 802. 11 Working Group. web
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Research essay sample on Wireless Technology Industry Report 2005 06
