Library items tagged: wireless networks

Wireless LAN Basics 1. Cisco® paper on allocating channels without overlaps: http://www.cisco.com/en/US/products/hw/wireless/ps430/ 2. Intel table of attenuation effects of different materials: http://www.intel.com/business/bss/infrastructure/wireless/deployment/considerations.htm

The basic tools for performing a wireless network survey are therefore a device that can measure signal and noise levels and calculate the signal/noise ratio, and a map of the area to record these values.

Wireless networks are a useful complement to a wired network, allowing network connections to be obtained anywhere within an area rather than only at fixed network connection points. However, wireless networks suffer from a number of problems that do not affect wired networks, in particular that the medium they use to transmit packets is a scarce resource subject to physical limits. Whereas the capacity of a wired network can be increased indefinitely by adding more cables, a wired network only has available a finite (and in some cases very small) number of frequencies.