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3,929
Joint Frequency-domain Equalization and Spectrum Combining for the Reception of
- SC Signals in the Presence of Timing Offset,” Proc. IEEE 71st Vehicular Technology Conference (VTC 2010-Spring
, 2010
"... Abstract—Frequency-domain equalization (FDE) based on minimum mean square error (MMSE) criterion is a promising equalization technique for the broadband single-carrier (SC) transmission. However, the presence of timing offset produces the inter-symbol interference (ISI) and degrades the bit error ra ..."
Abstract
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Cited by 6 (5 self)
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Abstract—Frequency-domain equalization (FDE) based on minimum mean square error (MMSE) criterion is a promising equalization technique for the broadband single-carrier (SC) transmission. However, the presence of timing offset produces the inter-symbol interference (ISI) and degrades the bit error
Joint Frequency-Domain Equalization and Despreading for Multi-Code DS-CDMA using Cyclic Delay Transmit Diversity
- SF=1 SF=2 SF=4
, 2009
"... Abstract- Cyclic delay transmit diversity (CDTD) using frequency-domain equalization (FDE) based on the minimum mean squire error (MMSE) criterion is a powerful technique to improve the bit error rate (BER) performance of direct sequence code division multiple access (DS-CDMA) signal transmission in ..."
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Cited by 3 (2 self)
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-CDMA with CDTD using MMSE-FDE is limited by the residual inter-chip interference (ICI) after FDE. In this paper, we propose a new joint FDE and despreading suitable for CDTD, which can simultaneously perform equalization and despreading in the frequency-domain. We evaluate the achievable BER performance
Joint Frequency-domain Equalization and Multiple Transmit/Receive Antenna Diversity for DS-CDMA
"... Frequency-domain equalization used in MC-CDMA can be applied to the reception of DS-CDMA signals. Further performance improvement can be attained by the additional use of multiple transmit/receive antenna diversity. The BER performance improvement attainable by the joint use of frequency-domain equa ..."
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Frequency-domain equalization used in MC-CDMA can be applied to the reception of DS-CDMA signals. Further performance improvement can be attained by the additional use of multiple transmit/receive antenna diversity. The BER performance improvement attainable by the joint use of frequency-domain
Joint Frequency-domain Equalization and Antenna Diversity Combining for Orthogonal Multicode DS-CDMA Signal Transmissions in A Frequency-selective Fading Channel
"... Orthogonal multicode direct sequence code division multiple access (DS-CDMA) has a flexibility in offering various data rate services. However, in a frequency-selective fading channel, the bit error rate (BER) performance is severely degraded since othogonality among spreading codes is partially los ..."
Abstract
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Cited by 9 (8 self)
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lost. In this paper, we apply frequency-domain equalization and antenna diversity combining, used in multi-carrier CDMA (MC-CDMA), to DS-CDMA in order to restore the code othogonality while achieving frequency and antenna diversity effect. It is found by computer simulations that the joint use
Frequency-Domain Single-Carrier Spread Spectrum with Joint FDE and Spectrum Combining
"... Abstract—In this paper, a DFT-based frequency-domain spread spectrum (FDSS) technique for SC transmission is introduced. The transmitted data is initially transformed to frequency-domain signal by using DFT. Frequency-domain spreading can achieve large frequency diversity gain through joint frequenc ..."
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Abstract—In this paper, a DFT-based frequency-domain spread spectrum (FDSS) technique for SC transmission is introduced. The transmitted data is initially transformed to frequency-domain signal by using DFT. Frequency-domain spreading can achieve large frequency diversity gain through joint
Orthogonal Code-Multiplexed Frequency-Domain Single-Carrier Spread Spectrum
"... Abstract The authors have proposed a frequency-domain single-carrier spread spectrum (SC-FDSS) transmission technique, which achieves better bit-error rate (BER) and better power amplifier-dependent energy efficiency comparing with time-domain spread spectrum (TDSS). However, its wider transmission ..."
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transformed into frequency-domain signal by discrete Fourier transform (DFT), and then code multiplexing is done to achieve narrower transmit bandwidth. Joint frequency-domain equalization based on minimum mean-square error criterion (MMSE-FDE) and de-spreading is carried out for acquiring frequency diversity
Capacity of a Mobile Multiple-Antenna Communication Link in Rayleigh Flat Fading
"... We analyze a mobile wireless link comprising M transmitter and N receiver antennas operating in a Rayleigh flat-fading environment. The propagation coefficients between every pair of transmitter and receiver antennas are statistically independent and unknown; they remain constant for a coherence int ..."
Abstract
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Cited by 495 (22 self)
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interval of T symbol periods, after which they change to new independent values which they maintain for another T symbol periods, and so on. Computing the link capacity, associated with channel coding over multiple fading intervals, requires an optimization over the joint density of T M complex transmitted
Loopy belief propagation for approximate inference: An empirical study. In:
- Proceedings of Uncertainty in AI,
, 1999
"... Abstract Recently, researchers have demonstrated that "loopy belief propagation" -the use of Pearl's polytree algorithm in a Bayesian network with loops -can perform well in the context of error-correcting codes. The most dramatic instance of this is the near Shannon-limit performanc ..."
Abstract
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Cited by 676 (15 self)
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with loops (undirected cycles). The algorithm is an exact inference algorithm for singly connected networks -the beliefs converge to the cor rect marginals in a number of iterations equal to the diameter of the graph.1 However, as Pearl noted, the same algorithm will not give the correct beliefs for mul
Author manuscript, published in "24th Annual IEEE international sumposium on personal, indoor and mobile radio communications (PIMRC'2013), London: United Kingdom (2013)" Non-Binary Coded CCSK and Frequency-Domain Equalization with Simplified LLR Generati
, 2013
"... Abstract—In this paper, we investigate the performance of Single-Carrier (SC) transmission with Non-Binary Low-Density Parity-Check (NB-LDPC) coded Cyclic Code-Shift Keying (CCSK) signaling in a multipath environment and we show that the combination of CCSK signaling and non-binary codes results in ..."
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, we propose a joint Frequency-Domain Equalization (FDE) and LLR generation scheme that aims at reducing the complexity of the receiver. Finally, we demonstrate through Monte-Carlo simulations and histogram analysis that this proposed CCSK signaling scheme gives more robustness to SC-FDE systems than
Frequency Domain Equalization for Single-Carrier Broadband Wireless Systems
- IEEE Commun. Mag
, 2002
"... this document does not refer to rms delay spread, but rather to thetotal time span of the measurable channel impulse response. 2% of the measured paths had rms delay spreads of over 2 s.; the average was 0.14 s. A 2 s. rms delay spread could be equivalent to a channel impulse response spanning rough ..."
Abstract
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Cited by 304 (6 self)
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this document does not refer to rms delay spread, but rather to thetotal time span of the measurable channel impulse response. 2% of the measured paths had rms delay spreads of over 2 s.; the average was 0.14 s. A 2 s. rms delay spread could be equivalent to a channel impulse response spanning roughly 8-10 s
Results 1 - 10
of
3,929
