Abstract
ABSTRACTThis paper deals with the usage of a combination of fuzzy system and artificial techniques, which are called adaptive neuro fuzzy inference system (ANFIS), in order to minimize the distance between the signal and SNR transmitting channel noise and then reduce the error rate of bit error rate (BER) transmission. The authors are focusing on a real implementation of ANFIS channel equalizer on software-defined radio (SDR) system working on PCI eXtensions for instrumentation (PXI) platform. This sophisticated modular measuring system consists of a vector signal generator RF VSG NI PXI-5670 and a vector signal analyzer RF VSA NI PXI-5661. Experimental results suggest that researched ANFIS equalizer embodies better BER values in comparison to commercially most common equalizers of the least mean square algorithm group. Moreover, the conducted experiments show that the usage of the SDR conception is very suitable for testing new principles in channel equalization field.
Highlights
Continuous grow of data transmission using wireless networks can be observed during the year 2012
New systems must be developed, which would lead to minimization of influence of disturbing phenomena in the radio transmission channel [20] of modern wireless transmission systems
For verification of the real features of the designed system NI PXI, a passive omnidirectional WiFi Antenna TP-LINK TL ANT2405C with 5 dBi gain – was connected to output of broadcast part of the system and the receiver was affixed with the passive panel sector WiFi Antenna Centurion Wireless Technologies with 9 dBi of gain
Summary
Continuous grow of data transmission using wireless networks can be observed during the year 2012. The providers of wireless transmission of data demand more effective use of the frequency band. New systems must be developed, which would lead to minimization of influence of disturbing phenomena in the radio transmission channel [20] of modern wireless transmission systems. This would lead to an increase of transmission speed with stress on efficiency of the frequency band use [12]. The flexibility of used measuring apparatus is stressed in this study Advantages of this approach in view of designing real applications are described
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
