학술논문
Parallel interference cancellation with reduced complexity for multi-carrier spread-spectrum FCDMA
Document Type
Conference
Author
Source
2000 IEEE Sixth International Symposium on Spread Spectrum Techniques and Applications. ISSTA 2000. Proceedings (Cat. No.00TH8536) Spread spectrum techniques and applications Spread Spectrum Techniques and Applications, 2000 IEEE Sixth International Symposium on. 2:353-357 vol.2 2000
Subject
Language
Abstract
The performance of code division multiple access (CDMA) systems is limited by multiple access interference (MAI) which can be overcome by multi-user detection schemes. Interference cancellation seems to be a good compromise in terms of performance and computational complexity compared to optimum multi-user detection or linear transformations e.g. based on the MMSE criterion. In this paper, the performance and complexity of parallel interference cancellation (PIC) are investigated for a multi-carrier spread-spectrum frequency code division multiple access (MC-SS FCDMA) system. Evaluating the structure of MAI, the PIC is modified to reduce its complexity to the order of the single-user detector while keeping the bit error rate in the range of the conventional PIC value.