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Receivers and CQI Measures for MIMO-CDMA Systems in Frequency-Selective Channels
2005
EURASIP Journal on Advances in Signal Processing
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Such a measure is essential for both link adaptation and also to provide a means of link-to-system mapping. ...
For the JE transmission, we develop a per-Walsh code joint detection structure consisting of a front-end linear filter followed by joint symbol detection among all the streams. ...
Dung Doan of Qualcomm for helpful discussions, and Chris Jensen of Nokia Research Center for proofreading the revised draft. ...
doi:10.1155/asp.2005.1668
fatcat:vw5geyoksrcufndayfghybkpae
Layered video transmission over wireless multirate DS-CDMA links
2005
IEEE transactions on circuits and systems for video technology (Print)
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For the latter case, spreading codes of different lengths are allowed for each CDMA channel (multirate CDMA). ...
Our experimental results demonstrate the effectiveness of such a multirate DS-CDMA system for wireless video transmission. ...
For example, at of 3.072 Mc/s, in the two-channel system kb/s, , , and the MSE for base-layer decoding is 26.71. ...
doi:10.1109/tcsvt.2005.856922
fatcat:pco4axrhh5fxdj3jn72swq5xni
Blind Channel Estimation for Multi-Rate Multicarrier DS/CDMA Communications
2005
International Journal of Wireless Information Networks
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For the single-carrier case, space-time blind linear multiuser detection is investigated for synchronous dual-rate systems over the AWGN channel. The performance is evaluated analytically. ...
Furthermore, blind adaptive channel estimation and detection schemes for asynchronous dual-rate systems over frequency-selective multipath channels are developed. ...
Fig. 5 . 5 2 summarizes the RMSE of channel estimation for both VSF and MC systems. ...
doi:10.1007/s10776-004-2401-0
fatcat:dszwyb2mjfe43hlos6qtio2o5a
New pre-processing technique to enhance single-user-type DS-CDMA detectors in "blind" space-time rake receivers
2006
IEEE Transactions on Wireless Communications
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antenna array's nominal or actual gain-phase-polarization response, and (3) the co-channel multiaccess users' signature-spreading codes. ...
Proposed herein is a pre-processing technique applicable to maximum-SINR beamformers for "blind" spacetime rake receivers in "single-user"-type DS-CDMA detection. ...
That is, this "self-decorrelation" technique may be used not only for CDMA detection as explained above, but also for joint angle and delay estimation of the fading channel. ...
doi:10.1109/twc.2006.04741
fatcat:dk3k4shiuvegxjdsxiv3unzhhm
2010 Index IEEE Transactions on Signal Processing Vol. 58
2010
IEEE Transactions on Signal Processing
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., +, TSP Nov. 2010 5945-5950 A Simple Precoding-Based Blind Channel Estimation for Space-Time Block-Coded Single-Carrier With Frequency-Domain Equalization Systems. Chen, Y. ...
., +, TSP Nov. 2010 5791-5801
Space-Time Block Coding for Doubly-Selective Channels. ...
Global Positioning System A Fixed-Lag Particle Filter for the Joint Detection/Compensation of Interference Effects in GPS Navigation. ...
doi:10.1109/tsp.2010.2092533
fatcat:4y66ezuo7zf6doe6nwjqwtc42i
Introduction to Smart Antennas
2007
Synthesis Lectures on Antennas
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Acknowledgments The authors would like to express their sincere appreciation for the cooperation, suggestions, generous contributions and supply of information by many of the authors of papers from which ...
In particular, the authors would like to recognize: Profs. J. R. Mosig and A. Skrivervik, and their graduate student I. In advance, we apologize for any omissions; they are not intentional. ...
OFDM is particularly suited for transmission over a dispersive (i.e., frequency selective) channel. In 1993 Linnertz et al. proposed the multi-carrier code division multiple access (MC-CDMA) [55] . ...
doi:10.2200/s00079ed1v01y200612ant005
fatcat:crh7v55hd5gp3h3obyb65sf2sa
Performance of the smart antenna aided multicarrier DS-CDMA uplink
IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004
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In this contribution a generalized MC DS-CDMA system invoking smart antennas for improving the achievable performance of the system is studied, which is capable of suppressing the multiuser interference ...
In the considered MC DS-CDMA system the receiver employs multiple receive antennas and each of the receive antennas consists of several antenna array elements. ...
Fig. 3 . 3 Receiver block diagram of the generalized MC DS-CDMA system considered. ...
doi:10.1109/vetecf.2004.1399961
fatcat:dhywvb2t5zcftgopbwg6y52vuq
Asymmetric Signaling: A New Dimension of Interference Management in Hardware Impaired Communication Systems
2021
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In this backdrop, we propose the improper Gaussian signaling (IGS) to mitigate the drastic impact of HWIs and improve the system performance in terms of achievable rate and outage probability. ...
Many presented the widely linear model for in-phase and quadrature imbalance (IQI) but failed to recognize the impropriety induced in the system because of the self-interfering signals. ...
The important class of space-time block-codes for MIMO channels i.e., linear dispersion codes is constructed from linear combination of input symbols and their complex conjugates. ...
doi:10.25781/kaust-i5t5s
fatcat:lkswx5cfjrdqrdjytuskjp77ya