-
Article
Decode-and-forward cooperative transmission in wireless sensor networks based on physical-layer network coding
In order to tackle the problem of reducing the transmission delay of multi-data acquisition source nodes in wireless sensor networks, we propose a cooperative method based on decode-and-forward (DF) and physic...
-
Article
Open AccessOn signal processing scheme based on network coding in relay-assisted D2D systems
Network coding (NC) can greatly improve a system’s performance on throughput and channel utilization via corresponding signal processing on the relay side. Implementation of NC in relay-assisted device-to-devi...
-
Chapter and Conference Paper
Physical-Layer Network Coding in Shallow Sea Underwater Acoustic Channels
To improve the limited-bandwidth in shallow underwater acoustic communication, we propose to apply the physical-layer network coding (PNC) to this communication system. This paper analyzes the model of shallow...
-
Chapter and Conference Paper
The Joint Channel Equalization and Estimation Algorithm for Underwater Acoustic Channel
Underwater acoustic channel (UAC) is one of the most challengeable communication channels in the world, owing to its complex multi-path and absorption as well as variable ambient noise. Although adaptive equal...
-
Chapter and Conference Paper
Performance Analysis of Asymmetric Two-Way Relay Channels with Physical-Layer Network Coding
Up to now, most of the researches about physical-layer network coding (PNC) are based on symmetric two-way relay channels. In this paper, we mainly study PNC in asymmetric two-way relay channels with Rayleigh ...
-
Chapter and Conference Paper
Combined Denoise-and-Forward and Superposition Coded Physical-Layer Network Coding in Data Length Asymmetric Two-Way Relay Channels
To improve the bit error rate (BER) performance of physical-layer network coding (PNC) in data length asymmetric two-way relay communication systems, a new PNC scheme named combined denoise-and-forward and sup...
-
Article
The Performance of Physical-Layer Network Coding in Asymmetric Rayleigh Fading Two-Way Relay Channels
Up to now, most of the researches about physical-layer network coding (PNC) are based on symmetric two-way relay channels. In this paper, we mainly study PNC in asymmetric two-way relay Rayleigh fading channel...
-
Article
Physical-Layer Network Coding Scheme over Asymmetric Rayleigh Fading Two-Way Relay Channels
To improve the bit error rate (BER) performance of physical-layer network coding (PNC) in asymmetric two-way relay channels (TWRC), in this paper, we study a new PNC scheme named bi-quadrature physical-layer n...
-
Chapter and Conference Paper
Designing of Environmental Information Acquisition and Reconstruction System Based on Compressed Sensing
At present, the collection of environmental information is mostly accomplished by sensors. In order to reduce the redundancy of sensor data collection, reduce the energy consumption of nodes, improve the servi...
-
Chapter and Conference Paper
The CEEFQPSK Scheme for Two-Way Relay Communication Systems with Physical-Layer Network Coding
A physical-layer network coding (PNC) scheme based on CEEFQPSK (constant envelope enhanced FQPSK) is established for satellite communications. The scheme is implemented for uplink and downlink. In the uplink, ...
-
Chapter and Conference Paper
Modeling and Performance Analysis of Multi-layer Satellite Networks Based on STK
With the difference of satellite altitude, there are always some inherent defects in the traditional single-layer satellite networks. In this paper, in order to improve the performance of the single-layer netw...
-
Article
Open AccessA new joint channel equalization and estimation algorithm for underwater acoustic channels
Underwater acoustic channel (UAC) is one of the most challenging communication channels in the world, owing to its complex multi-path and absorption as well as variable ambient noise. Although adaptive equaliz...
-
Article
Modeling potential scenarios of the Tangjiashan Lake outburst and risk assessment in the downstream valley
This research is devoted to Tangjiashan Lake, a quake landslide-dammed lake, situated in Sichuan Province, China, which was formed by a landslide triggered by the Wenchuan Earthquake on 12 May 2008. A STREAM_2...
-
Article
Calculation of the separation grid design length in a new water–sediment separation structure for debris flow defense
A new water–sediment separation structure with a herringbone separation grid has been developed for debris flow defense. Previous model experiments showed that, compared to existing structures, this structure ...
-
Article
Open AccessAlbumin adsorption on CoCrMo alloy surfaces
Proteins can adsorb on the surface of artificial joints immediately after being implanted. Although research studying protein adsorption on medical material surfaces has been carried out, the mechanism of the ...
-
Article
A new water–sediment separation structure for debris flow defense and its model test
Structural measures, such as the commonly used open dam with a water–sediment separation function, are important in the mitigation of debris flow hazards and disasters. However, the existing open dams often lo...
-
Article
A model of debris flow forecast based on the water-soil coupling mechanism
Debris flow forecast is an important means of disaster mitigation. However, the accuracy of the statistics-based debris flow forecast is unsatisfied while the mechanism-based forecast is unavailable at the wat...
-
Article
Mean velocity estimation of viscous debris flows
The mean velocity estimation of debris flows, especially viscous debris flows, is an important part in the debris flow dynamics research and in the design of control structures. In this study, theoretical equa...
-
Article
Experimental study on the viscoelastic behaviors of debris flow slurry
The rheological properties of most liquid in nature are between liquids and solids, including both elastic changes and viscosity changes, that is so-called “viscoelastic”. Dynamic oscillatory test was used to ...
-
Article
Measuring the internal velocity of debris flows using impact pressure detecting in the flume experiment
Measuring the internal velocity of debris flows is very important for debris flow dynamics research and designing debris flow control works. However, there is no appropriate method for measuring the internal v...
