Electromagnetic interference problems in mobile wireless communication system and its efficient frequency management

The paper dwells on the design and development aspect of modern electronic wireless communication system taking into consideration of the EMC aspect, viz. propagation characteristics, multipath reflection, adjacent channel interference, co-channel interference, environmental norms, fading etc. It deals with the problems of echo-cancellation due to high speed modems and loss of signal due to power level change during operation. Besides, sectorisation for using the same line on the same cell-site by added users is also discussed.