Information About Wireless : Update 4
التاريخ : 03 January 2013
المحرر : WebMaster
الفئة : News
Benefit of Wireless N Technology
The innovative techniques and technologies employed in 802.11n result in a wireless LAN that offers several important advantages over previous wireless solutions. These advantages include:
• Greater reliability: MIMO allows 802.11n networks to provide a more robust wireless service that supports more concurrent connections. With the ability to communicate over multiple antennas and eliminate dead spots, 802.11n networks can maintain optimal performance at greater distances (even with conventional 802.11a/b/g clients) and provide an improved user experience for high-bandwidth voice and video applications. MIMO improves the signal transmit and receive characteristics of the wireless transmission to reduce the number of packet retries resulting in a more reliable and consistent level of throughput.
• Greater throughput: The combination of MIMO, channel bonding, and packet aggregation allow 802.11n networks (employing both 802.11n clients and access points) to achieve data rates as high as 300 Mbps per radio, fully five times greater than the maximum available with 802.11a/g. However, 802.11n access points also enhance the performance of wireless clients built under previous standards. An 802.11a/b/g client communicating with an 802.11n access point will usually deliver better throughput than if it were communicating with an 802.11a/b/g wireless access point at the same range, simply as a result of MIMO technology.
• Greater coverage predictability: Enterprises are designing wireless networks for performance and MIMO provides greater throughput resulting in more predictable coverage throughout the facility. The coverage improvements extend to 802.11a/b/g clients as well as 802.11n clients. At any given location, a client connecting to an 802.11n access point with MIMO will receive greater throughput than it would otherwise receive from a traditional 802.11a/b/g access point. As a result, 802.11n networks can support more clients using high-bandwidth applications than previous wireless solutions.