Wireless technology Essay Example | Topics and Well Written Essays - 1000 words

Wireless technology - analyze ExampleThere is no government regulation (worldwide) controlling use of it. Infrared has immunity to electro-magnetic and RF interference. In addition, Infrared communication is secure and separate infrared installation can be operated in every room in a building without interference. Limitation of it is that infrared quests cannot penetrate solid objects and touch by the light, snow, ice, and fog.The term narrow stripe vaporize refers to the use of a microwave radio frequency band for signal transmission, with relatively narrow bandwidth just wide enough to accommodate the signal, typically 12.5 kHz or 25 kHz. Because of it works in very short bandwidth, therefore it comes in licensed and unlicensed categories. Unlicensed (ISM) stipulateband microwave works in three bandwidth spectrum (900 MHz, 2.4 GHz, 5.7 GHZ). It can provide a data rate from 1to 20 Mbps. Narrow bandwidth combined with high power results in larger transmission distances that are available from 900 MHz or 2.4 GHz spread spectrum systems, which have lower power levels and wider bandwidths. UHF wireless data communication systems unremarkably transmit in the 430 to 470 MHz frequency wave, with rare systems using segments of the 800 MHz range. The lower portion of this band 430-450 MHz is often referenced as unprotected (unlicensed) and 450-470 MHz is referred to as the protected (licensed) band. It has a range of approximately 100 meter for indoor and 1 to 2 miles for outdoor. The main advantage of UHF is its range. The disadvantage of these technologies (UHF) is its low throughput. RF license are required for protected bands that are provided by radio politics in each country who regulate and license specific frequencies to users. (Guide to Wireless LAN Technologies)The most usually used Wireless technology is spread spectrum that can provide a data rate up to 20 Mbps. Because the Federal Communication Commission (FCC) does not require site licensing for the bands used by