Results 151 to 160 of about 257 (174)
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Optimum MMSE equalization for staggered modulation
Proceedings of 27th Asilomar Conference on Signals, Systems and Computers, 2002"Staggered modulation" techniques have become prevalent in digital radio transmission. These techniques offset or stagger the modulation of the in-phase component with respect to the quadrature component of the signal. Examples include minimum shift keying (MSK), Gaussian MSK, offset QPSK, and offset QAM. Conventional equalization designed for QPSK/QAM
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A Novel Practical CP Based Mismatched MMSE Equalization
2017 IEEE Wireless Communications and Networking Conference (WCNC), 2017Faster than symbol rate (FTSR) sampling is necessary once practical non-adaptive analog front-end filter and excess bandwidth are employed in case of unequally spaced channel taps. Based on this a novel FTSR sampled mismatched minimum mean square error (MMSE) time domain equalization (TDE) is proposed in response to cyclic prefix (CP) based block ...
Eren Balevi, Ali Özgür Yilmaz
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Multi-stage MMSE decision feedback equalization for EDGE
2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2004Compared to wired channels, time dispersive radio channels possess more frequent nulls in their spectral characteristics. Thus, the performance of linear filters to compensate intersymbol interference degrades dramatically. The well-known nonlinear decision feedback equalizer (DFE) is one approach to improve this behavior.
Guido Dietl +4 more
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A comparison of bit and symbol interleaving in MMSE turbo-equalization
IEEE International Conference on Communications, 2003. ICC '03., 2004The purpose of this paper is to compare bit and symbol interleaving in turbo-equalization (TE) schemes. Considering a single binary encoder and memoryless mapper, the corresponding transmission schemes are respectively bit-interleaved coded modulation (BICM) and trellis-coded modulation (TCM) over a static frequency selective channel. Appropriate turbo
Antoine Dejonghe 0001, Luc Vandendorpe
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Lattice Reduction Aided MMSE Decision Feedback Equalizers
IEEE Transactions on Signal Processing, 2011The LLL algorithm developed by Lenstra, Lenstra, and Lovasz has been widely studied to improve the conditioning of linear systems of equations that arise in multi-input multi-output (MIMO) antenna systems. In the first part of this correspondence, we show how a certain class of matrices can be transformed so that the LLL algorithm can be carried out ...
Park, J Park, Jaehyun +2 more
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Novel exact low complexity MMSE turbo equalization
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008In this paper we analyze low complexity turbo equalization that combines interference canceling and soft-input soft-output (SISO) decoding. We derive a new, exact MMSE solution for the equalization part taking into account the cross-correlation between the linear equalizer output and the soft decisions in the turbo equalization feedback loop as well as
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A note on optimum MMSE/ZF multichannel equalization delay
2010 17th International Conference on Telecommunications, 2010The reconstruction delay has been, for long time, recognized a significant impact on the performance of an equalizer. Still, no proofs were given that sustain the experimental observations. In this note, we develop a formal analysis that shows that optimum equalization performance is met at a delay larger than the channel memory and smaller than the ...
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Decentralized Recursive MMSE Equalizer for Massive MIMO Systems
2022Hao Gao, Jiaheng Wang, Yongming Huang
exaly
A Common Phase Error Estimation Scheme with MMSE Equalizer
2023 14th International Conference on Information and Communication Technology Convergence (ICTC), 2023Juho Park, JunHwan Lee, Moon-Sik Lee
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A Low Complexity MMSE Equalizer for OFDM Systems over Time-Varying Channels
IEICE Transactions on Communications, 2008Shaoping Chen
exaly