Joint Turbo Equalization and Cancelation of Nonlinear Distortion Effects in Mc-cdma Signals
نویسندگان
چکیده
In this paper, we consider low-PMEPR (Peak-to-Mean Envelope Power Ratio) MC-CDMA (Multicarrier Coded Division Multiple Access) schemes. We develop frequencydomain turbo equalizers combined with an iterative estimation and cancellation of nonlinear distortion effects. Our receivers have relatively low complexity, since they allow FFT-based (Fast Fourier Transform) implementations. The proposed turbo receivers allow significant performance improvements at low and moderate SNR (Signal-to-Noise Ratio), even when a low-PMEPR MC-CDMA transmission is intended.1
منابع مشابه
The 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC’06) JOINT MULTIUSER DETECTION AND CANCELATION OF NONLINEAR DISTORTION EFFECTS FOR THE UPLINK OF MC-CDMA SYSTEMS
In this paper we consider the uplink transmission in MCCDMA systems (MultiCarrier Coded Division Multiple Access). To reduce the envelope fluctuations of the transmitted signals, the MC-CDMA signal associated to each MT (Mobile Terminal) is submitted to a clipping device,followed by a frequency-domain filtering operation. We define an iterative receiver that jointly performs the MUD (MultiUser ...
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