Near-far resistance of Alamouti space-time coded CDMA communication systems
نویسندگان
چکیده
In this paper, the neax-far resistance of the MMSE detector is derived for the code division multiple access (CDMA) communication systems with the Alamouti space-time block coding. It is shown that transmitter/receiver diversity has benefits on the near-far resistance performance while receiver diversity has more impact on theTTear-far resistance.
منابع مشابه
Iterative detection for space-time coded synchronous CDMA communication systems
An iterative receiver is proposed for the downlink of CDMA communication systems that employ both a convolutional channel code and a space-time trellis code to achieve transmit diversity in the presence of channel fading. The proposed iterative receiver operates by exchanging extrinsic information between the channel and space-time decoders in each iteration. Comparison of performance results, ...
متن کاملPerformance of Multistage Interference Cancellers in Space-Time Coded CDMA Systems
In this paper, we investigate the bit error performance of multistage interference cancellers in a K-user aspchronoudsynchronous space-time coded CDMA system under near-far conditions. We consider orthogonal space-time block codes with M, 1 5 M 5 8 transmit antennas, We develop a generalized discrete time vector.,model for the received signal at the output of the matched filters, and use this m...
متن کاملPerformance of adaptive multiuser detectors in space-time coded CDMA systems
In this paper, we present a comparative performance evaluation of adaptive multiuser detectors, including stochastic gradient (SG) and recursive least squares (RLS) algorithms (which require training data), and minimum output energy (MOE) and subspace-based MMSE (S-MMSE) algorithms (which do not require training data), under near-far conditions in a space-time coded CDMA system. We show that, i...
متن کاملSpace-Time Coded CDMA Systems
Absfrmf-' I n this paper, we present a comparative performance evaluation of adaptive multiuser detectors, including stochastic gradient (SG) and recursive least squares (RLS) algorithms (which require training data), and minimum output energy (MOE) and subspace-based MMSE (S-MMSE) algorithms (which do not require training data), under near-far conditions in a space-time coded CDMA system. We s...
متن کاملNear-Far Resistance of MC-DS-CDMA Communication Systems
In this paper, the near-far resistance of the minimum mean square error (MMSE) detector is derived for the multicarrier direct sequence code division multiple access (MC-DS-CDMA) communication systems. It is shown that MC-DS-CDMA has better performance on near-far resistance than that of DS-CDMA.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Signal Processing
دوره 84 شماره
صفحات -
تاریخ انتشار 2004