Narrowband Interference Suppression in Wireless OFDM Systems

Zlatka Nikolova
Georgi Iliev
Miglen Ovtcharov
Vladimir Poulkov


Signal distortions in communication systems
occur between the transmitter and the receiver; these
distortions normally cause bit errors at the receiver. In
addition interference by other signals may add to the
deterioration in performance of the communication link. In
order to achieve reliable communication, the effects of the
communication channel distortion and interfering signals
must be reduced using different techniques. The aim of this
paper is to introduce the fundamentals of Orthogonal
Frequency Division Multiplexing (OFDM) and Orthogonal
Frequency Division Multiple Access (OFDMA), to review
and examine the effects of interference in a digital data
communication link and to explore methods for mitigating
or compensating for these effects.


Adaptive complex systems, Adaptive signal processing, NBI suppression, OFDM, Wireless systems

Full Text: