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Reliable Communications over Rapidly Time-Varying Channels

  1. Research Article

    Estimation and Direct Equalization of Doubly Selective Channels

    We propose channel estimation and direct equalization techniques for transmission over doubly selective channels. The doubly selective channel is approximated using the basis expansion model (BEM). Linear and ...

    Imad Barhumi, Geert Leus and Marc Moonen

    EURASIP Journal on Advances in Signal Processing 2006 2006:062831

    Published on: 29 October 2006

  2. Research Article

    Low-Complexity Banded Equalizers for OFDM Systems in Doppler Spread Channels

    Recently, several approaches have been proposed for the equalization of orthogonal frequency-division multiplexing (OFDM) signals in challenging high-mobility scenarios. Among them, a minimum mean-squared erro...

    Luca Rugini, Paolo Banelli and Geert Leus

    EURASIP Journal on Advances in Signal Processing 2006 2006:067404

    Published on: 3 August 2006

  3. Research Article

    Multilevel Codes for OFDM-Like Modulation over Underspread Fading Channels

    We study the problem of modulation and coding for doubly dispersive, that is, time and frequency selective, fading channels. Using the recent result that underspread linear systems are approximately diagonaliz...

    Siddhartha Mallik and Ralf Koetter

    EURASIP Journal on Advances in Signal Processing 2006 2006:097210

    Published on: 10 July 2006

  4. Research Article

    Stochastic Power Control for Time-Varying Long-Term Fading Wireless Networks

    A new time-varying (TV) long-term fading (LTF) channel model which captures both the space and time variations of wireless systems is developed. The proposed TV LTF model is based on a stochastic differential ...

    Mohammed M. Olama, Seddik M. Djouadi and Charalambos D. Charalambous

    EURASIP Journal on Advances in Signal Processing 2006 2006:089864

    Published on: 29 June 2006

  5. Research Article

    A Low-Complexity Time-Domain MMSE Channel Estimator for Space-Time/Frequency Block-Coded OFDM Systems

    Focusing on transmit diversity orthogonal frequency-division multiplexing (OFDM) transmission through frequency-selective channels, this paper pursues a channel estimation approach in time domain for both spac...

    Habib Şenol, HakanAli Çırpan, Erdal Panayırcı and Mesut Çevik

    EURASIP Journal on Advances in Signal Processing 2006 2006:039026

    Published on: 10 May 2006

  6. Research Article

    Spectrally Efficient Communication over Time-Varying Frequency-Selective Mobile Channels: Variable-Size Burst Construction and Adaptive Modulation

    Methods for providing good spectral efficiency, without disadvantaging the delivered quality of service (QoS), in time-varying fading channels are presented. The key idea is to allocate system resources accord...

    Francis Minhthang Bui and Dimitrios Hatzinakos

    EURASIP Journal on Advances in Signal Processing 2006 2006:035352

    Published on: 7 May 2006

  7. Research Article

    Optimal Training for Time-Selective Wireless Fading Channels Using Cutoff Rate

    We consider the optimal allocation of resources—power and bandwidth—between training and data transmissions for single-user time-selective Rayleigh flat-fading channels under the cutoff rate criterion. The tra...

    Saswat Misra, Ananthram Swami and Lang Tong

    EURASIP Journal on Advances in Signal Processing 2006 2006:047245

    Published on: 20 April 2006

  8. Research Article

    Efficient Bidirectional DFE for Doubly Selective Wireless Channels

    The bidirectional decision feedback equalizer (DFE) performs two equalizations, one on the received signal and one on its time-reversed version. In this paper, we apply the bidirectional DFE to wireless transm...

    Stefano Tomasin

    EURASIP Journal on Advances in Signal Processing 2006 2006:070572

    Published on: 21 March 2006