Blind Channel Equalization and Identification
Blind Channel Equalization and Identification
IEEE Transactions on Signal Processing - Part I
Fast-Converging Blind Adaptive Channel-Shortening and Frequency-Domain Equalization
IEEE Transactions on Signal Processing
Blind, adaptive channel shortening by sum-squared auto-correlation minimization (SAM)
IEEE Transactions on Signal Processing
Low-complexity MIMO blind, adaptive channel shortening
IEEE Transactions on Signal Processing
Minimum-Mean-Output-Energy Blind Adaptive Channel Shortening for Multicarrier SIMO Transceivers
IEEE Transactions on Signal Processing
Second-order statistical approaches to channel shortening in multicarrier systems
IEEE Transactions on Signal Processing
Subspace-based blind channel estimation for OFDM by exploiting virtual carriers
IEEE Transactions on Wireless Communications
IEEE Communications Magazine
Frequency domain equalization for single-carrier broadband wireless systems
IEEE Communications Magazine
Outdoor Mobile Broadband Access with 802.11
IEEE Communications Magazine
Residual ISI cancellation for OFDM with applications to HDTV broadcasting
IEEE Journal on Selected Areas in Communications
Blind channel shortening in MIMO-OFDM systems using single-block differential modulation
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
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In block transmission systems, blind channel shortening methods are known to be effective to reduce the influence of interblock interference which degrades the performance when the length of a channel impulse response is extremely long. Conventional methods assume that the transmitted signal is uncorrelated; however, this assumption is invalid in practical systems such as OFDM with null carriers and MC-CDMA. In this paper, we consider blind channel shortening methods for block transmissions when the transmitted samples within a block are correlated. First, the channel shortening ability of a conventional method is clarified. Next, a new method which exploits the fact that the transmitted samples in different blocks are uncorrelated is introduced. It is shown that the proposed method can shorten the channel properly under certain conditions. Finally, simulation results of OFDM and MC-CDMA systems are shown to verify the effectiveness of the proposed method compared with a conventional one.