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Implementation of new telecommunications services has always been associated with the need to ensure network efficiency required to implement these services. Network efficiency can be described by a number of parameters such as: network bandwidth, propagation time, quality, reliability and fault tolerance. More and better performance, and thus network efficiency is achieved mainly by using more and more advanced technical and technological solutions. There were milestones solutions such as the use of coaxial transmission cables, optical fibers, and various techniques of multiplication like TDM or WDM (Newton, 1996). Significant impact on the way to deliver services had wireless transmission, which has found widespread use in communication networks since the end of last century. |
