TY - GEN
T1 - Interference suppression in spread spectrum systems using the CR-fractional fourier transform
AU - Huang, Kewu
AU - Tao, Ran
PY - 2010
Y1 - 2010
N2 - Recent research has shown that cognitive radio (CR) is an attractive technology to enhance the spectrum utilization and the fractional Fourier transform (FRFT) is widely used for its advantages in dealing with the time-varying degradations and non-stationary processes. In this paper, a novel interference suppression approach using the CR-FRFT is proposed for the spread spectrum systems. This approach firstly carries out the pattern recognition by spectrum sensing, and then chooses an optimal transform order for the recognized interference to make the FRFT-based transform domain excision. Theoretical analysis and experimental results show that the proposed CR-FRFT technique is more pertinent than the conventional techniques and can achieve a significant performance for the broadband interference. As the FRFT has a fast digital algorithm, it is conveniently to make a software package of the proposed CR-FRFT technique and be embedded in the existed spread spectrum systems for interference excision applications.
AB - Recent research has shown that cognitive radio (CR) is an attractive technology to enhance the spectrum utilization and the fractional Fourier transform (FRFT) is widely used for its advantages in dealing with the time-varying degradations and non-stationary processes. In this paper, a novel interference suppression approach using the CR-FRFT is proposed for the spread spectrum systems. This approach firstly carries out the pattern recognition by spectrum sensing, and then chooses an optimal transform order for the recognized interference to make the FRFT-based transform domain excision. Theoretical analysis and experimental results show that the proposed CR-FRFT technique is more pertinent than the conventional techniques and can achieve a significant performance for the broadband interference. As the FRFT has a fast digital algorithm, it is conveniently to make a software package of the proposed CR-FRFT technique and be embedded in the existed spread spectrum systems for interference excision applications.
KW - Cognitive radio
KW - Fractional Fourier transform
KW - Interference suppression
KW - Spread spectrum systems
UR - http://www.scopus.com/inward/record.url?scp=78650500138&partnerID=8YFLogxK
U2 - 10.1109/PCSPA.2010.141
DO - 10.1109/PCSPA.2010.141
M3 - Conference contribution
AN - SCOPUS:78650500138
SN - 9780769541808
T3 - Proceedings - 2010 1st International Conference on Pervasive Computing, Signal Processing and Applications, PCSPA 2010
SP - 560
EP - 563
BT - Proceedings - 2010 1st International Conference on Pervasive Computing, Signal Processing and Applications, PCSPA 2010
T2 - 1st International Conference on Pervasive Computing, Signal Processing and Applications, PCSPA 2010
Y2 - 17 September 2010 through 19 September 2010
ER -