Title :
Performance of narrowband interference suppression filters in a direct sequence code division multiple access system
Author :
Cho, Youngkwon ; Lee, Jae Hong
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
29 Sep-2 Oct 1996
Abstract :
Narrowband interference (NBI) suppression filters can substantially improve the interference suppression capability of direct sequence code division multiple access (DS/CDMA) systems under the frequency overlay situation. Analytical expressions for the performance of NBI suppression filters are derived and evaluated. A one-sided predictor with decision feedback improves the interference suppression capability much more than a linear two-sided interpolator without decision feedback and its performance is nearly independent of the number of code division multiple access (CDMA) users
Keywords :
adaptive filters; code division multiple access; filtering theory; interference suppression; interpolation; least mean squares methods; prediction theory; pseudonoise codes; radiofrequency filters; spread spectrum communication; AWGN; DS/CDMA systems; adaptive LMS algorithm; decision feedback; direct sequence code division multiple access system; filter performance; frequency overlay; linear two-sided interpolator; minimum mean square error; narrowband interference suppression filters; one-sided predictor; AWGN; Binary phase shift keying; Direct-sequence code-division multiple access; Feedback; Filters; Frequency conversion; Interference suppression; Multiaccess communication; Narrowband; Performance analysis; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Universal Personal Communications, 1996. Record., 1996 5th IEEE International Conference on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-3300-4
DOI :
10.1109/ICUPC.1996.557812
