Linear suppression of wideband data-like interference in DS/SS communications
SCIE
SCOPUS
- Title
- Linear suppression of wideband data-like interference in DS/SS communications
- Authors
- Cho, JH; Jeong, YK; Lehnert, JS
- Date Issued
- 2005-05
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGI
- Abstract
- In this paper, a linear receiver is proposed and its performance is analyzed for direct-sequence spread-spectrum communications with wideband data-like interference. Two groups of communicators employing generalized random spreading are considered, and the signals are assumed to have harmonically related cyclostationarity periods. First, the output signal-to-interference ratio (SIR) of a general correlation receiver is derived in the frequency domain, and the key system parameters that affect the structure of the interference are identified. Then, a linear interference suppression scheme based on the maximum SIR (MSIR) criterion is proposed, and a receiver structure similar to the cyclic Wiener filter is derived. Numerical results show that the proposed linear MSIR receiver significantly outperforms the conventional correlation receiver by effectively suppressing the wideband data-like interference.
- Keywords
- code division multiple access (CDMA); cyclic Wiener filtering; interference suppression; spread-spectrum communication; time-varying systems; SPREAD-SPECTRUM COMMUNICATIONS; MULTIPLE-ACCESS INTERFERENCE; ADAPTIVE MULTIUSER DETECTION; CDMA SYSTEMS; SIGNATURE SEQUENCES; MMSE RECEIVERS; PERFORMANCE; TRANSFORMS; REJECTION; EXCISION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24611
- DOI
- 10.1109/JSAC.2005.845412
- ISSN
- 0733-8716
- Article Type
- Article
- Citation
- IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. 23, no. 5, page. 973 - 983, 2005-05
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