Model for narrow band interference control in ultra-wide band (UWB) indoor wireless networks
Omuko, Denis Onyango
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Ultra-wide band (UWB) also known as digital pulse wireless is a wireless technology for transmitting large amount of digital data over a wide spectrum frequency bands with low power over short distances. Ultra-wide band systems cannot only carry a huge amount of data over distance up to 33 feet (10 meters) at low power (less than 0.5mw), but has the ability to carry signals through doors and other obstacles that tend to reflect signals at more limited bandwidth and higher powers (Rouse, June 2008). With the revitalization of the UWB technology, the common Wi-Fi technology faces a blatant threat of being surpassed in the near future (Shaik, 2012). The spreading of the signal over a wide frequency band achieves low spectral density which minimizes interference to the existing communication in the same spectrum. However, since UWB occupies a very wide frequency band, it is forced to coexist with numerous powerful licensed communication systems transmitting in the same band. The interference caused by these systems may complicate or even block the UWB communications (Ben Wilmholff, February 25, 2015). Hence a need arises to combat these interference in the UWB systems to realize its benefits.