Title :
Narrowband interference suppression in multipath CDMA system
Author :
Ugweje, Okechukwu C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Akron Univ., OH, USA
Abstract :
As a means of suppressing interference, this paper analyzes the effect of filtering and diversity on the bit error rate performance of a direct sequence code division multiple access (DS-CDMA) overlay system. The system is analyzed in terms of the interference-to-signal power, ratio of interference bandwidth to spread spectrum bandwidth, order of diversity, multipath intensity profile and number of users. The performance of the system with and without filters is compared. It is shown that the use of filtering and diversity results in performance improvement compared to a system without filtering or system without diversity or both.
Keywords :
code division multiple access; diversity reception; error statistics; filtering theory; interference suppression; multipath channels; multiuser channels; radiofrequency interference; spread spectrum communication; BER performance; DS-CDMA overlay system; bit error rate performance; direct sequence code division multiple access; diversity order; filtering; interference bandwidth to SS bandwidth ratio; interference-to-signal power; multipath CDMA system; multipath intensity profile; multiple access interference; narrowband interference suppression; system performance; Bandwidth; Bit error rate; Direct-sequence code-division multiple access; Filtering; Filters; Interference suppression; Multiaccess communication; Narrowband; Performance analysis; Spread spectrum communication;
Conference_Titel :
Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Print_ISBN :
0-7803-7376-6
DOI :
10.1109/WCNC.2002.993358
