Results 291 to 300 of about 395,124 (322)

Design of limiting amplifier models for nonlinear amplify-and-forward distributed estimation

2013 18th International Conference on Digital Signal Processing (DSP), 2013
This paper describes the design of limiting amplifier models to be used in the implementation of non-linear amplify-and-forward distributed estimation systems. The use of nonlinear amplifiers in amplify-and-forward distributed estimation can yield significant gains in sensor power efficiency compared to the more conventional linear amplifiers.
Robert Santucci, Mahesh K. Banavar, Andreas Spanias, Cihan Tepedelenlioglu   +3 more
openaire   +1 more source

Amplify-and-forward with full-duplex relay selection

2012 IEEE International Conference on Communications (ICC), 2012
This paper focuses on the relay selection problem in amplify-and-forward (AF) cooperative communication with full-duplex (FD) operation. Different relay selection schemes assuming the availability of different instantaneous information are studied. We consider an optimal relay selection that maximizes the instantaneous FD channel capacity and requires ...
Krikidis, Ioannis A., Suraweera, H. A., Yuen, C., Krikidis, Ioannis A., Suraweera, H. A., Yuen, C.   +5 more
openaire   +2 more sources

Beamforming in Nonorthogonal Amplify-and-Forward Relay Networks

IEEE Transactions on Vehicular Technology, 2011
This paper considers wireless amplify-and-forward (AF) relay networks in which the source communicates with the relays and destination in the first phase and the relays simultaneously forward signals to the destination in the second phase over uncorrelated Rayleigh fading channels.
Tung T. Pham, Ha H. Nguyen, Hoang D. Tuan   +2 more
openaire   +1 more source

Multistage cooperative broadcast using amplify-and-forward relays

2010 - MILCOM 2010 MILITARY COMMUNICATIONS CONFERENCE, 2010
In this work we study the propagation of the signal in a cooperative network where a single source message is retransmitted by multiple stages (levels) of relays. Relays are assumed to have limited computational abilities and hence adopt the amplify-and-forward scheme.
Bhargava Yammanuru, Birsen Sirkeci-Mergen   +1 more
openaire   +1 more source

Delay-tolerant STBC for both amplify-and-forward and decode-and-forward cooperative networks

2008 IEEE International Symposium on Information Theory, 2008
Distributed space-time code constructions are presented that are suitable for asynchronous cooperative networks using different cooperation strategies. The codes presented herein may be used with either an amplify-and-forward or a decode-and-forward protocol, achieving in either scenario full spatial diversity despite arbitrary timing offsets among ...
A. Roger Hammons, Mohamed Oussama Damen
openaire   +1 more source

Lactate dehydrogenases amplify reactive oxygen species in cancer cells in response to oxidative stimuli

Signal Transduction and Targeted Therapy, 2021
Hao Wu, Yuqi Wang, Jiang-Tao Li
exaly  

Oncogenic extrachromosomal DNA functions as mobile enhancers to globally amplify chromosomal transcription

Cancer Cell, 2021
Amit D Gujar, Harianto Tjong, Chew Yee Ngan   +2 more
exaly  

Older adult participation in cancer clinical trials: A systematic review of barriers and interventions

Ca-A Cancer Journal for Clinicians, 2021
Mina S Sedrak, Rachel A Freedman, Aminah Jatoi   +2 more
exaly  

BER Analysis in Dual Hop Differential Amplify-and-Forward Relaying Systems with Selection Combining Using M-ary Phase-Shift Keying over Nakagami-m Fading Channels

Next Generation Teletraffic and Wired/Wireless Advanced Networking, 2019
M. Al-Mistarihi, Arwa S. Aqel, Khalid A. Darabkh   +2 more
semanticscholar   +1 more source

Robust Cooperative Secure Beamforming for Simultaneous Wireless Information and Power Transfer in Amplify-and-Forward Relay Networks

IEEE Transactions on Vehicular Technology, 2017
Youhong Feng, Zhen Yang, Weiping Zhu, Qiang Li, Bin Lv   +4 more
semanticscholar   +1 more source