Results 21 to 30 of about 140,869 (184)
Coding for the Non-Orthogonal Amplify-and-Forward Cooperative Channel [PDF]
2007 IEEE Information Theory Workshop, 2007 25 pages, 10 figures, submitted to IEEE Transactions on Information ...
Ghassan M. Kraidy +2 more
openaire +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
doaj +1 more source
Performance Comparison of Relay-Based Covert Communications: DF, CF and AF
Sensors, 2023 In this paper, we investigate the performance of covert communications in different types of a relay system: decode-and-forward (DF), compress-and-forward (CF) and amplify-and-forward (AF).
Jihwan Moon
doaj +1 more source
UAV Swarms as Amplify-and-Forward MIMO Relays [PDF]
2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2019 Unmanned aerial vehicles provide new opportunities for performance improvements in future wireless communications systems. For example, they can act as relays that extend the range of a communication link and improve the capacity. Unlike conventional relays that are deployed at fixed locations, UAVs can change their positions to optimize the capacity ...
Samer S. Hanna +3 more
openaire +2 more sources
Approaching Gaussian Relay Network Capacity in the High SNR Regime: End-to-End Lattice Codes [PDF]
, 2013 We present a natural and low-complexity technique for achieving the capacity of the Gaussian relay network in the high SNR regime. Specifically, we propose the use of end-to-end structured lattice codes with the amplify-and-forward strategy, where the ...
Medard, Muriel, Xu, Yun, Yeh, Edmund
core +2 more sources
Cooperative Spectrum Sensing Schemes with the Interference Constraint in Cognitive Radio Networks
Sensors, 2014 In this paper, we propose cooperative spectrum sensing schemes, called decode-and-forward cooperative spectrum sensing (DF-CSS) scheme and amplify-and-forward cooperative spectrum sensing (AF-CSS) scheme, in cognitive radio networks.
Tri-Nhu Do, Beongku An
doaj +1 more source
IEEE Photonics Journal, 2022 The scheme of combining relay and optical code division multiple access (OCDMA) is one of the effective methods to improve the reliability and security of free space optical (FSO) communication system.
Jianhua Ji +4 more
doaj +1 more source
An Efficient Partner Selection Method to Overcome the Interference Effect in Wireless Networks
IEEE Access, 2019 In this paper, through a mathematical analysis of the overall links capacity equation, we present an efficient partner selection criterion in a cooperative communication scheme with a time-varying fading channel and severe interference on the cooperative
Jamal A. Hassan, Samah A. Mustafa
doaj +1 more source
Differential Amplify-and-Forward Relaying in Time-Varying Rayleigh Fading Channels [PDF]
, 2013 This paper considers the performance of differential amplify-and-forward (D-AF) relaying over time-varying Rayleigh fading channels. Using the auto-regressive time-series model to characterize the time-varying nature of the wireless channels, new weights
Avendi, M. R., Nguyen, Ha H.
core +1 more source
Energies, 2019 The exact performance of amplify-and-forward (AF) bidirectional relay systems is studied in generalized and versatile Nakagami-m fading channels, where the parameter m is an arbitrary positive number.
Dong Qin, Yuhao Wang, Tianqing Zhou
doaj +1 more source