학술논문
Linear Multiuser Detection for Asynchronous CDMA Systems: Chip Pulse Design and Time Delay Distribution
Document Type
Conference
Author
Source
2006 IEEE Information Theory Workshop - ITW '06 Punta del Este Information Theory Workshop, 2006. ITW '06 Punta del Este. IEEE. :293-297 2006
Subject
Language
Abstract
The large system performance analysis of linear multiuser detectors (e.g. MMSE, MSWF, multistage detectors) for asynchronous CDMA systems is provided. While the performance of synchronous systems with square-root waveforms is independent of the chip bandwidth, the performance of asynchronous systems depends on the pulse shape and the bandwidth. It increases as the bandwidth increases beyond half on the chip rate and, in such a case, asynchronous systems outperform the synchronous ones.