Results 1 to 10 of about 2,756,876 (199)
Coded OFDM-IM With Transmit Diversity
In this paper, we propose a simple transmit diversity scheme for orthogonal frequency division multiplexing (OFDM) with index modulation (IM) in order to achieve a diversity gain for index detection, which can significantly improve the performance of ...
Jinho Choi
exaly +3 more sources
Achieving Transmit Diversity in OFDM-IM by Utilizing Multiple Signal Constellations
Orthogonal frequency division multiplexing (OFDM) index modulation (IM) is a novel multicarrier modulation, which employs both the indices of the active subcarriers and conventional constellation symbols to convey information.
Jianping Zheng, Ru Chen
doaj +2 more sources
A differential detection scheme for transmit diversity [PDF]
We present a transmission scheme for exploiting diversity given by two transmit antennas when neither the transmitter nor the receiver has access to channel state information. The new detection scheme can use PSK constellations and encoding is simple. At the receiver, decoding is achieved with low decoding complexity.
V. Tarokh, H. Jafarkhani
semanticscholar +3 more sources
Massive MIMO Beamforming With Transmit Diversity for High Mobility Wireless Communications
Providing stable and fast data transmission service is challenging in a high mobility wireless communication system, where massive multiple-input multiple-output (MIMO) beamforming is deemed as a potential solution.
Xuhong Chen +3 more
doaj +2 more sources
Cyclic Delay-Doppler Shift: A Simple Transmit Diversity Technique for Delay-Doppler Waveforms in Doubly Selective Channels [PDF]
Delay-Doppler waveform design has been considered as a promising solution to achieve reliable communication under high-mobility channels for the space-air-ground-integrated networks (SAGIN).
Hao-Ran Yin +6 more
semanticscholar +1 more source
The emergence of divergent SARS-CoV-2 lineages has raised concern that novel variants eliciting immune escape or the ability to displace circulating lineages could emerge within individual hosts. Though growing evidence suggests that novel variants arise
K. Braun +10 more
semanticscholar +1 more source
Energy Efficiency of Transmit Diversity Systems Under a Realistic Power Consumption Model
Glauber Brante +2 more
exaly +2 more sources
With the increase in the complexity of communication systems, order statistics have become increasingly significant in performance evaluation, especially for advanced diversity techniques over fading channels.
Seyeong Choi +2 more
doaj +1 more source
TRANSMIT ANTENNA SELECTION SCHEMES FOR DOUBLE SPATIAL MODULATION [PDF]
Double spatial modulation (DSM) is a transmission technique which has been recently proposed for multiple-input multiple-output (MIMO) communication systems.
Belal A. Asaati, Ammar M. Abu Hudrouss
doaj +1 more source
On the Beneficial Roles of Fading and Transmit Diversity in Wireless Power Transfer With Nonlinear Energy Harvesting [PDF]
We study the effect of channel fading in wireless power transfer (WPT) and show that fading enhances the RF-to-DC conversion efficiency of nonlinear RF energy harvesters. We then develop a new form of signal design for WPT, denoted as transmit diversity,
B. Clerckx, Junghoon Kim
semanticscholar +1 more source

