Results 81 to 90 of about 2,606,146 (326)

Spatially Coupled LDPC Codes for Decode-and-Forward in Erasure Relay Channel

, 2011
We consider spatially-coupled protograph-based LDPC codes for the three terminal erasure relay channel. It is observed that BP threshold value, the maximal erasure probability of the channel for which decoding error probability converges to zero, of ...
Kasai, Kenta, Sakaniwa, Kohichi, Uchikawa, Hironori   +2 more
core   +1 more source

Quasi-Concavity for Gaussian Multicast Relay Channels [PDF]

Entropy, 2015
Standard upper and lower bounds on the capacity of relay channels are cut-set (CS), decode-forward (DF), and quantize-forward (QF) rates. For real additive white Gaussian noise (AWGN) multicast relay channels with one source node and one relay node, these bounds are shown to be quasi-concave in the receiver signal-to-noise ratios and the squared source-
Mohit Thakur, Gerhard Kramer
openaire   +6 more sources

Toward Energy Efficient Electrochemical Valorization of Waste Nitrate and Sulfide

Advanced Materials, EarlyView.
This work introduces an integrated electrochemical strategy couples nitrate reduction with sulfide oxidation for energy‐efficient wastewater valorization. A Cu‐Co dual‑site catalyst, engineered for close proximity, promotes *NO2 relay and subsequently NH3 formation, enabling the system to operate at substantially reduced cell voltages and produce high ...
Bihao Hu, Yifan Zhou, Xiaoyuan Zhang, Shibo Xi, Qian He, Lei Wang   +5 more
wiley   +1 more source

Secrecy Capacity of a Class of Orthogonal Relay Eavesdropper Channels

EURASIP Journal on Wireless Communications and Networking, 2009
The secrecy capacity of relay channels with orthogonal components is studied in the presence of an additional passive eavesdropper node. The relay and destination receive signals from the source on two orthogonal channels such that the destination also ...
Vaneet Aggarwal, Lalitha Sankar, A. Robert Calderbank, H. Vincent Poor   +3 more
doaj   +2 more sources

Topological Interference Management for K-User Downlink Massive MIMO Relay Network Channel

Sensors, 2017
In this paper, we study the emergence of topological interference alignment and the characterizing features of a multi-user broadcast interference relay channel.
Poongundran Selvaprabhu, Sunil Chinnadurai, Jun Li, Moon Ho Lee   +3 more
doaj   +1 more source

Serotonergic System‐Targeted Nucleic Acid Hydrogel Coordinates Excitability Restoration and Circuit Reconstruction for Spinal Cord Injury Therapy

Advanced Materials, EarlyView.
The study reports a DNA/RNA heteroduplex hydrogel (SeroPTEN‐CG) that undergoes DNase‐mediated hydrogel‐to‐nanogel transition for spinal cord injury therapy by targeting the serotonergic system, combining 5‐hydroxytryptamine (5‐HT)‐mediated excitability restoration to reactivate dormant interneurons with phosphatase and tensin homolog (PTEN)‐targeted ...
Chunlin Li, Xiaoqing Zhao, Kai Jiang, Haixia Kang, Shuo Liu, Linlin Jiang, Baoshuai Bai, Haonan Cui, Ziyang Zhang, Menglei Dong, Ruizhi Zhang, Chenbo Zou, Shenghui Shang, Chi Zhang, Xiangchuang Fan, Lijuan Zhu, Huiquan Duan, Chuan Zhang, Shiqing Feng, Hengxing Zhou   +19 more
wiley   +1 more source

Degrees of Freedom for MIMO Two-Way X Relay Channel [PDF]

IEEE Transactions on Signal Processing, 2012
We study the degrees of freedom (DOF) of a multiple-input multiple-output (MIMO) two-way X relay channel, where there are two groups of source nodes and one relay node, each equipped with multiple antennas, and each of the two source nodes in one group ...
Zhengzheng Xiang, Jianhua Mo, M. Tao
semanticscholar   +1 more source

Pattern Formation in Non‐Equilibrium Architected Materials

Advanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

A New Achievable Scheme for Interference Relay Channels

, 2013
We establish an achievable rate region for discrete memoryless interference relay channels that consist of two source-destination pairs and one or more relays. We develop an achievable scheme combining Han-Kobayashi and noisy network coding schemes.
Chung, Sae-Young, Kang, Byungjun, Lee, Si-Hyeon, Suh, Changho   +3 more
core   +1 more source

Distributed Resource Allocation for Relay-Aided Device-to-Device Communication Under Channel Uncertainties: A Stable Matching Approach [PDF]

IEEE Transactions on Communications, 2015
Wireless device-to-device (D2D) communication underlaying cellular network is a promising concept to improve user experience and resource utilization.
M. Hasan, E. Hossain
semanticscholar   +1 more source