Results 21 to 30 of about 130,979 (278)

Multichannel receivers from ofdm and tdma in mobile communications [PDF]

open access: yes, 1997
This paper addresses the use of multichannel receivers for blind equalization in TDMA under frequency selective channels and OFDM systems in frequency flat fading channels.
Lamarca Orozco, M. Meritxell   +1 more
core   +1 more source

Wideband Fading Channels With Feedback [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
The Rayleigh flat fading channel at low SNR is considered. With full channel state information (CSI) at the transmitter and receiver, its capacity is shown to be essentially SNR log(1SNR) nats/symbol, as SNR goes to zero. In fact, this rate can be achieved with a just one bit of CSI at the transmitter (per fading realization) and with no receiver CSI ...
Borade, Shashi, Zheng, Lizhong
openaire   +2 more sources

Frequency estimation in multipath rayleigh-sparse-fading channels [PDF]

open access: yes, 2004
Maximum-likelihood (ML) data-aided frequency estimation in multipath Rayleigh-fading channels with sparse impulse responses is investigated. We solve this problem under the assumption that the autocorrelation matrix of the pilot signal can be ...
Baronkin, V M, Tozer, T C, Zakharov, Y V
core   +1 more source

The Streaming-DMT of Fading Channels [PDF]

open access: yesIEEE Transactions on Information Theory, 2014
We consider the sequential transmission of a stream of messages over a block-fading multi-input-multi-output (MIMO) channel. A new message arrives at the beginning of each coherence block, and the decoder is required to output each message sequentially, after a delay of $T$ coherence blocks.
Ashish Khisti, Stark C. Draper
openaire   +2 more sources

Normal approximations for fading channels [PDF]

open access: yes2018 52nd Annual Conference on Information Sciences and Systems (CISS), 2018
Capacity and outage capacity characterize the maximum coding rate at which reliable communication is feasible when there are no constraints on the packet length. Evaluated for fading channels, they are important performance benchmarks for wireless communication systems. However, the latency of a communication system is proportional to the length of the
Alejandro Lancho   +2 more
openaire   +2 more sources

Linear Equalization Combined with Multiple Symbol Decision Feedback Detection for Differential Space-Time Modulation

open access: yesEURASIP 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

Low SNR Capacity of Noncoherent Fading Channels

open access: yes, 2007
Discrete-time Rayleigh fading single-input single-output (SISO) and multiple-input multiple-output (MIMO) channels are considered, with no channel state information at the transmitter or the receiver. The fading is assumed to be stationary and correlated
Hajek, Bruce   +3 more
core   +4 more sources

On Block-Coded Modulation Using Unequal Error Protection Codes Over Rayleigh-Fading Channels [PDF]

open access: yes, 1998
This paper considers block-coded 8-phase-shift-keying (PSK) modulations for the unequal error protection (UEP) of information transmitted over Rayleigh-fading channels.
Imai, Hideki   +3 more
core   +2 more sources

On the Secrecy Capacity of Fading Channels [PDF]

open access: yes2007 IEEE International Symposium on Information Theory, 2007
We consider the secure transmission of information over an ergodic fading channel in the presence of an eavesdropper. Our eavesdropper can be viewed as the wireless counterpart of Wyner's wiretapper. The secrecy capacity of such a system is characterized under the assumption of asymptotically long coherence intervals. We first consider the full Channel
Praveen Kumar Gopala   +2 more
openaire   +3 more sources

General Switch-and-Stay Combing for Space Diversity over Rayleigh Fading Channels

open access: yesInternational Journal of Antennas and Propagation, 2012
Three multibranch switch-and-stay combining (MSSC) schemes are analyzed for Rayleigh fading channels, where different decision statistics for antenna switching (i.e., switch statistic) are used.
Yawgeng A. Chau, Yao-Hua Chen
doaj   +1 more source

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