Results 11 to 20 of about 4,754,953 (231)
A Novel training-based MIMO channel estimation scheme for layered space-time systems in frequency selective wireless channels [PDF]
, 2009 New development in wireless technology using multiple antennas with appropriate space-time processing has recently become the new frontier of wireless communication systems due to the potential for providing very high spectral efficiency and enormous ...
Siyau, Ming F.
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An error bound analysis for M-DPSK in frequency-selective Rayleigh fading channel with diversity reception [PDF]
, 1994 A theoretical upper bound is presented to calculate the error probability for raised cosine filtered M-ary differential phase-shift keying (RC M-DPSK) in frequency-selective Rayleigh fading channels.
Nix, AR, Chow, YC, McGeehan, JP
core +2 more sources
Multi-user MIMO CDMA systems using complete complementary sequences. [PDF]
, 2006 The authors propose a novel use of complete complementary (CC) sequences for increased spectral efficiency in a multiple-input–multiple-output (MIMO) code division multiple access (CDMA) system.
Khirallah, C. +3 more
core +5 more sources
A modified Alamouti scheme for frequency selective channels incorporating turbo equalization [PDF]
, 2002 The Alamouti scheme can achieve transmit diversity in the presence of frequency selective flat fading channels. The technique has received considerable attention mainly because of its processing simplicity. Recently, a modification to the Alamouti scheme
Nix, AR +7 more
core +1 more source
, 2007 Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless standards. However, the performance of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and the Phase Estimation Error (PER).
Liu, X. +3 more
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Performance Analysis of MIMO STBC System in Flat Fading and Frequency Selective Fading Channels
Journal of Electrical, Electronics and Informatics, 2019 Multiple Input Multiple Output (MIMO) technology is a technique that can be used to overcome multipath fading. The multipath fading is caused by signals coming from several paths that experience different attenuations, delays and phases.
Pebri Yeni Samosir +3 more
doaj +1 more source
New OSTBC for Blind Channel Estimation and Tracking in MIMO-OFDM Systems
Journal of Telecommunications and Information Technology, 2019 Applying orthogonal space time block coding (OSTBC) to multiple-input multiple-output (MIMO) systems helps reduce receiver complexity. However, this approach has been applied only to flat fading channels, as when the channel is a frequency selective ...
Abdelkader Tami +2 more
doaj +1 more source
EURASIP Journal on Advances in Signal Processing, 2002 Differential space-time modulation (DSTM) for multiple antenna communication systems has been recently proposed for frequency-nonselective fading channels. In broadband multirate systems, frequency-selective fading may occur.
Wang Genyuan, Song Aijun, Xia Xiang-Gen
doaj +1 more source
Distributed sensing using frequency-selective fading
Optics ExpressThe fading phenomenon in optical time-domain reflectometry is regarded as a detrimental process that degrades measurement performance. In this study, we investigate the fading behavior of coherent Rayleigh backscattering. Using this characterization, we propose and demonstrate that fading can be utilized for distributed sensing.
Yildiz, M.K. +4 more
openaire +3 more sources
Tongxin xuebao, 2006 Considering that the orthogonality of STBC in frequency-selective fading will be destroyed by the multiple path interference（MPI）,an iterative interference cancellation based maximum likelihood sequence estimation（MLSE） decoding scheme was proposed for ...
DONG Tao, YOU Xiao-hu
doaj +2 more sources