Results 51 to 60 of about 371,406 (280)
Secure Multiple Amplify-and-Forward Relaying With Cochannel Interference [PDF]
IEEE Journal of Selected Topics in Signal Processing, 2016 We investigate the impact of cochannel interference on the security performance of multiple amplify-and-forward (AF) relaying networks, where $N$ intermediate AF relays assist the data transmission from the source to the destination. The relays are corrupted by multiple cochannel interferers, and the information transmitted from the relays to the ...
Fan, Lisheng +4 more
openaire +3 more sources
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Secrecy Performance Analysis of Relay Selection in Cooperative NOMA Systems
IEEE Access, 2019 This paper investigates the security performance of two relay selection schemes for cooperative non-orthogonal multiple access (NOMA) systems, where K randomly distributed relays are employed with either decode-and-forward (DF) or amplify-and-forward (AF)
Zhenling Wang, Zhangyou Peng
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Optimal relay selection scheme and outage probability analysis in cooperative wireless networks
Dianxin kexue, 2018 Optimal relay selection can effectively improve the system performance in the communication network with cooperative relays from the view of physical layer security.The optimal relay selection schemes for relay transmission system with multiple single ...
Youhong FENG +5 more
doaj +2 more sources
Adaptive AF/DF Selection With FD/HD Switching in Two-Way Relay Networks
IEEE Access, 2017 The full-duplex (FD) and two-way relay are promising techniques for their high spectrum efficiency. However, the incompletely self-interference cancellation may reduce the performance gain of two-way relay networks, which operates in FD mode.
Quanqiang Miao, Bo Bai, Wei Chen
doaj +1 more source
Optimal space-time codes for the MIMO amplify-and-forward cooperative channel
, 2006 In this work, we extend the non-orthogonal amplify-and-forward (NAF) cooperative diversity scheme to the MIMO channel. A family of space-time block codes for a half-duplex MIMO NAF fading cooperative channel with N relays is constructed.
Belfiore, Jean-Claude, Yang, Sheng
core +5 more sources
FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Cooperative Relay in Cognitive Radio Networks: Decode-and-Forward or Amplify-and-Forward? [PDF]
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010 Cognitive radios (CR) and cooperative communications represent new paradigms that both can effectively improve the spectrum efficiency of future wireless networks. In this paper, we investigate the problem of cooperative relay in CR networks for further improved network performance.
Donglin Hu, Shiwen Mao
openaire +1 more source
Beamforming in Two-Way Fixed Gain Amplify-and-Forward Relay Systems with CCI
, 2012 We analyze the outage performance of a two-way fixed gain amplify-and-forward (AF) relay system with beamforming, arbitrary antenna correlation, and co-channel interference (CCI).
Duong, Trung Q. +3 more
core +1 more source