Results 61 to 70 of about 40,503 (307)

Multiple-Symbol Differential Sphere Detection Aided Successive Relaying in the Cooperative DS-CDMA Uplink [PDF]

, 2011
The conventional amplify-and-forward cooperative system is capable of achieving a superior performance with the aid of Multiple-Symbol Differential Sphere Detection (MSDSD), when compared to conventional differential detection (CDD) for transmission over
Li, Li, Hanzo, Lajos, Lajos Hanzo, Li Li
core   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

An Overview of Device-to-Device Communications Technology Components in METIS

IEEE Access, 2016
As the standardization of network-assisted device-to-device (D2D) communications by the Third Generation Partnership Project progresses, the research community has started to explore the technology potential of new advanced features that will largely ...
Gabor Fodor, Sandra Roger, Nandana Rajatheva, Slimane Ben Slimane, Tommy Svensson, Petar Popovski, Jose Mairton B. Da Silva, Samad Ali   +7 more
doaj   +1 more source

An Energy Optimization Clustering Scheme for Multi-Hop Underwater Acoustic Cooperative Sensor Networks

IEEE Access, 2020
In this paper, we propose an improved energy optimization clustering algorithm (EOCA) for the multi-hop underwater acoustic cooperative sensor networks (UWA-CSN) due to the limited energy supply of the underwater sensor nodes.
Weijian Yu, Yougan Chen, Lei Wan, Xiaokang Zhang, Peibin Zhu, Xiaomei Xu   +5 more
doaj   +1 more source

Efficient Polar Coded Selective Decode-and-Forward with Cooperative Decision Threshold in Cooperative Multi-Relay Transmissions

Sensors, 2022
In some satellite Internet of Things (IoT) devices with terrain shielding, the qualities of the direct source-destination (S-D) channel are poor, requiring cooperative communications with multi-relays to be employed.
Bin Jiang, Yue Tang, Jianrong Bao, Chao Liu, Yanhai Shang   +4 more
doaj   +1 more source

Power Allocation for Cooperative Communications

, 2009
In this chapter, we review the optimal power allocation policies for fading channels in single user and multiple access scenarios. We provide some background on cooperative communications, starting with the relay channel, and moving onto mutually ...
Sennur Ulukus, Kaya, Onur, Onur Kaya, Ulukuş, Şennur   +3 more
core   +1 more source

Decoding IGLL5 Mutation‐Mediated BCR Signaling: A Novel Mechanism of CD8+ T Cell Exhaustion and Ocular MALT Lymphoma Progression

Advanced Science, EarlyView.
OAML harbors recurrent IGLL5 mutations that reinforce CD79A/CD79B‐associated BCR signaling. Mechanistic analysis of the S47G and A54G variants reveals induction of CXCL10/CXCL11, enhanced CD8+ T‐cell recruitment, and exhaustion‐associated dysfunction, supporting an immune‐tolerant niche.
Andi Zhao, Haoyu Wei, Chenyu Zhou, Xinping Sun, Shuyan Da, Haiyu Liu, Zijin Wang, Hui Zhu, Shiya Shen, Qing Shao, Qi Gong, Hu Liu, Xuejuan Chen   +12 more
wiley   +1 more source

Joint Rate and Power Adaptation for Amplify-and-Forward Two-Way Relaying Relying on Analog Network Coding

IEEE Access, 2016
Analog network coding (ANC) is a promising technique of improving the throughput of relaying, especially when combined with both rate- and power-adaptation in the context of amplify-and-forward two-way relaying (AF-TWR ). In particular, the adaptation is
Yanping Yang, Wei Chen, Ou Li, Lajos Hanzo   +3 more
doaj   +1 more source

Self-concatenated code design and its application in power-efficient cooperative communications

, 2012
In this tutorial, we have focused on the design of binary self-concatenated coding schemes with the help of EXtrinsic Information Transfer (EXIT) charts and Union bound analysis.
Butt, Muhammad Fasih, Ng, Soon, Hanzo, Lajos   +2 more
core   +1 more source

A Skull Bone Marrow‐to‐Brain Axis Links Osteoblastic Activity to Myeloid Cell Trafficking, Cerebral Blood Flow, and Cognition in Alzheimer's Progression

Advanced Science, EarlyView.
This study reveals that Alzheimer's disease–linked APP expression in bone‐forming cells drives skull bone marrow remodeling and alters its vascular connections to the brain. These changes disrupt immune cell trafficking, cerebral blood flow, and cognition. Targeting bone marrow macrophages restores brain function, highlighting a previously unrecognized
Lei Xiong, Dong Sun, Hao‐Han Guo, Daehoon Lee, Zhipeng Liu, Lin Mei, Wen‐Cheng Xiong   +6 more
wiley   +1 more source