Results 11 to 20 of about 55,618 (226)
Energy Efficient Joint Power Optimization for Full-Duplex Relaying
IEEE Access, 2019 Full-duplex (FD) relaying is a promising technology for the next generation communication systems. In this paper, we aim to jointly optimize the source and relay transmit powers to maximize the energy efficiency (EE) for both amplify-and-forward (AF) and
Zhenyao He +3 more
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Simulasi dan Analisis Transmisi Multihop Mobile WiMAX Dengan Metode Hybrid
Jurnal Elektronika dan Telekomunikasi, 2016 Makalah ini membahas tentang pengembangan relay station untuk transmisi downlink Mobile WiMAX dengan menggunakan metode hybrid, yaitu metode transmisi yang menggunakan tiga buah transmisi.
Muhamad Asvial, Taufiq Nugroho
doaj +1 more source
Interference Channels With Full-Duplex Amplify-and-Forward Receiver Cooperations
IEEE Access, 2020 This paper considers a two-transmitter and two-receiver interference channel (IC), where each transmitter sends a message to its desired receiver. In particular, the full-duplex (FD) amplify-and-forward (AF) protocol is adopted to build up the receiver ...
Dan Wang +3 more
doaj +1 more source
Sensors, 2018 In this research, we investigate a hybrid time-switching relay (TSR)⁻power-splitting relay (PSR) alternate energy harvesting (EH) relaying network over the Rician fading channels.
Tan N. Nguyen +6 more
doaj +1 more source
Journal of information and communication convergence engineering, 2013 Cognitive radio has been recently considered a promising technology to improve spectrum utilization by enabling secondary access to licensed bands that are not used by primary users temporarily or spatially. A prerequisite to this secondary access is the lack of interference to the primary system.
Muhammad Sajjad Khan, Insoo Koo
openaire +2 more sources
Memoryless Relay Strategies for Two-Way Relay Channels: Performance Analysis and Optimization [PDF]
, 2008 We consider relaying strategies for two-way relay channels, where two terminals transmits simultaneously to each other with the help of relays. A memoryless system is considered, where the signal transmitted by a relay depends only on its last received
Cui, Tao, Ho, Tracey, Kliewer, Jörg
core +3 more sources
Cooperative Detection for Primary User in Cognitive Radio Networks
EURASIP Journal on Wireless Communications and Networking, 2009 We propose two novel cooperative detection schemes based on the AF (Amplify and Forward) and DF (Decode and Forward) protocols to achieve spatial diversity gains for cognitive radio networks, which are referred to as the AF-CDS, (AF-based Cooperative ...
Zhu Jia, Zou Yulong, Zheng Baoyu
doaj +2 more sources
Perbandingan Kinerja Non-Orthogonal dan Orthogonal Amplify and Forward pada Two-Way Cooperative WLAN
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017 Nowadays, the advancement of Wireless Local Area Network (WLAN) technology has developed very rapidly because it is very practical and has effective mobility level. In practice, there is a major problem in wireless communications systems, which is fading.
Kurnia Rizki, Nasaruddin, Ramzi Adriman
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Destination Assisted Jamming and Beamforming for Improving the Security of AF Relay Systems
IEEE Access, 2017 In this paper, we propose a destination-assisted jamming and beamforming (DAJB) scheme for physical layer security in a one-way cooperative amplify-and-forward (AF) relay communication system. The system model consists of one source, one destination, one
Nian Ouyang +3 more
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Multicast Transmissions With Full-Duplex Amplify-and-Forward User Cooperation
IEEE Access, 2020 In order to improve the multicast transmissions, a full-duplex (FD) user cooperation scheme is proposed. In this paper, the transmitter sends the common messages to two FD users, and each user forwards its received signals to its counterpart by amplify ...
Linsong Du, Han Zhang, Chuan Huang
doaj +1 more source