Results 91 to 100 of about 798,977 (204)

Hybrid deep learning for robust spectrum sensing over AWGN and fading channels

open access: yesEURASIP Journal on Advances in Signal Processing
Accurate and reliable spectrum sensing (SS) is crucial for optimal spectrum usage in cognitive radio (CR) networks under challenging low signal-to-noise ratio (SNR) and fading channel conditions. The Bi-CLNetwork, a hybrid deep learning (DL) architecture,
Sarah Yahya Salih Al-Hajm   +2 more
doaj   +1 more source

Toward an efficiently computable formula for the output statistics of MIMO block-fading channels [PDF]

open access: yes, 2013
The information that can be conveyed through a wireless channel, with multiple-antenna equipped transmitter and receiver, crucially depends on the channel behavior as well as on the input structure.
Alfano, Giuseppa   +3 more
core  

Secrecy Balancing over Two-User MISO Interference Channels with Rician Fading

open access: yesInternational Journal of Antennas and Propagation, 2013
This paper considers a 2-user multiple-input single-output (MISO) interference channel with confidential messages (IFC-CM), in which the Rician channel model is assumed.
Jiqing Ni   +5 more
doaj   +1 more source

Distributed Space-Time Block Code over Mixed Rayleigh and Rician Frequency-Selective Fading Channels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
This paper proposes a new distributed space-time block code (DSTBC) over frequency-selective fading channels for two-hop amplify and forward relay networks, consisting of a source node (S), two relay nodes (R1 and R2), and a destination node (D).
Quoc-Tuan Vien   +2 more
doaj   +1 more source

Diversity-multiplexing tradeoff and outage performance for Rician MIMO channels

open access: yes, 2008
In this paper, we analyze the diversity-multiplexing tradeoff (DMT), originally introduced by Zheng and Tse, and outage performance for Rician multiple-input-multiple-output (MIMO) channels.
Lee, Yong-Hoon   +2 more
core  

Turbo Trellis Coded Modulation (TTCM) with Imperfect Phase Reference

open access: yesElectrica, 2019
In this paper, we investigate the performance of Turbo Trellis Coded Modulation (TTCM) over AWGN, and Rician channels and assume that phase disturbance is available.
Osman N. Ucan, Onur Osman
doaj   +2 more sources

Reducing the peak-to-average power ration for NOMA waveform with diverse channel using micro genetic algorithm-based partial transmission sequence algorithm

open access: yesEURASIP Journal on Wireless Communications and Networking
This paper explores the efficiency of peak-to-average power ratio (PAPR) reduction methods in non-orthogonal multiple access (NOMA) systems under Rayleigh and Rician fading channels for various sub-carrier configurations. The μGA-PTS method improves PAPR
Arun Kumar   +3 more
doaj   +1 more source

Performance of Fractionally Spread Multicarrier CDMA in AWGN as Well as Slow and Fast Nakagami-m Fading Channels

open access: yes, 2005
—In multicarrier code-division multiple-access (MCCDMA), the total system bandwidth is divided into a number of subbands, where each subband may use direct-sequence (DS) spreading and each subband signal is transmitted using a subcarrier frequency.
Yang, L-L., Hanzo, L.
core   +1 more source

Downlink multiuser massive MIMO in Rician channels under pilot contamination

open access: yes, 2016
© 2016 IEEE. In this paper, we investigate uplink channel estimation and multiuser downlink transmission of a massive MIMO time-division duplex system in the presence of pilot contamination, where the base station (BS) with M antennas communicates with N
Yang, T   +7 more
core   +1 more source

Joint Antenna Selection and Transmit Power Optimization for UAV-Assisted Relaying in Cognitive Radio IoT Networks

open access: yesMathematics
In this paper, we study a cognitive relay Internet of Things (IoT) network aided by an unmanned aerial vehicle (UAV) equipped with multiple antennas. The UAV performs relaying for secondary communication under stringent interference constraints imposed ...
Dong-Woo Lim, Jae-Mo Kang
doaj   +1 more source

Home - About - Disclaimer - Privacy