When we talk about Mobile Business then its worst useful without authentication means to make Network as business all user required to be authenticate lets understand how authentication done in gsm. Authentication Center (AUC) The AUC is a processor system, it performs the “authentication” function. It will normally be co-located with the Home Location Register … Read more
The actual frequency planning of certain areas is usually conducted with such areas divided into segments geographically, i.e., first divide a complex network into small networks. However, there should be some frequency carriers (when the frequency is enough) reserved at the boundary of the segments or the frequency carriers should be divided. Such boundary should … Read more
When using close frequency reuse technique, system interference is the most important factor for frequency reuse ratio. Usually, power control and discontinuous transmission technologies are adopted to lower system interference. To prevent interference and improve system communication quality under the same interference condition, frequency hopping technology is used. Therefore, frequency hopping is a very important … Read more
In TCH interval grouping, the three cells of the same BTS use the same HSN while different BTS use different HSN, and different MAIO are used by carriers in the same layer of the same BTS. The HSN of BTS A is 1, the MAIO of two carriers TCH1 and TCH2 in Group 1 cell … Read more
Gain is most important thing in wireless communication and if its passive then it will be very useful here I write about antenna gain and diversity gain definition and its effect. Antenna Gains Mobile Station Antenna Portable mobile phones antennas have typically gain of 0 to 1 dBd. Car mounted antenna has a typical gain … Read more