Theoretical Investigation into Spectral Coexistence of CDMA and TDMA Systems

A.M. Abbosh, M. A. Shehathah


 The scarcity of available radio spectrum presently limits the extension of modern multimedia systems. This paper presents a theoretical investigation into the possibility of using a frequency overlay of a narrowband Code Division Multiple Access (CDMA) System and a Time Division Multiple Access (TDMA) System to provide a greater spectral efficiency. This paper shows that under certain conditions the two systems can operate in the same frequency band and in the same area with a considerable improvement in the overall capacity of the whole system.



Capacity, CDMA, Hybrid system, TDMA

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