منابع مشابه
Nonlinear Multiuser Receiver for Optimized Chaos-Based DS-CDMA Systems
Chaos based communications have drawn increasing attention over the past years. Chaotic signals are derived from non-linear dynamic systems. They are aperiodic, broadband and deterministic signals that appear random in the time domain. Because of these properties, chaotic signals have been proposed to generate spreading sequences for wide-band secure communication recently. Like conventional DS...
متن کاملMultiuser Delay-Tracking CDMA Receiver
We propose to integrate delay tracking into a successive interference cancellation (SIC) code division multiple access (CDMA) multiuser detector. Delay-robust SIC was initially proposed for CDMAmultiuser detection when there exist time delay estimation errors. When the delay error is small, the true user signature vector can be approximately expanded around the estimated time delay as a linear ...
متن کاملA linear receiver for coded multiuser CDMA
In this paper we consider a CDMA system with error-control coding. Optimal joint decoding is prohibitively complex. Instead, we propose a sequential approach for handling multiple-access interference and error-control decoding. Error-control decoding is implemented via single-user soft-input decoders utilizing metrics generated by linear algebraic multiuser metric generators. The decorrelator, ...
متن کاملLow-power CDMA Multiuser Receiver Architectures
Abst rac t Presented in this paper are low-power, reconfigurable adaptive CDMA multiuser receiver architectures developed via dynamic algorithmic transforms (DAT). The architectures achieve low-power operation via run-time reconfigu, ration of receiver complexity to match the requirements of a time-varying multiuser channel. Simulation results with 0.25pm, 2.3V CMOS technology parameters indica...
متن کاملCapon multiuser receiver for CDMA systems with space-time coding
We present in this paper a linear blind multiuser receiver, referred to as the Capon receiver, for code-division multiple-access (CDMA) systems utilizing multiple transmit antennas and space-time (ST) block coding. The Capon receiver is designed by exploiting signal structures imposed by both spreading and ST coding. We highlight the unique ST coding induced structure, which is shown to be crit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electronics Letters
سال: 1995
ISSN: 0013-5194,1350-911X
DOI: 10.1049/el:19951100