An Investigation for Imperfect CSI Effects on Half-Duplex/Full-Duplex Relaying Network

2021 ◽  
Author(s):  
Volkan Ozduran
Keyword(s):  
Full Duplex ◽  
Imperfect Csi ◽  
Half Duplex

scholarly journals Power Efficient Secure Full-Duplex SWIPT Using NOMA and D2D with Imperfect CSI

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5395
Author(s):  
Jingpu Wang ◽  
Xin Song ◽  
Yatao Ma ◽  
Zhigang Xie
Keyword(s):  
Multiple Access ◽  
Full Duplex ◽  
Linear Matrix ◽  
Artificial Noise ◽  
Imperfect Csi ◽  
Transmit Power ◽  
Power Efficient ◽  
Half Duplex ◽  
Estimation Scheme ◽  
Convergence Performance

The secure full-duplex (FD) simultaneous wireless information and power transfer (SWIPT) system and non-orthogonal multiple access (NOMA) have been deemed two promising technologies for the next generation of wireless communication. In this paper, the network is combined with device-to-device (D2D) and a practical bounded channel state information (CSI) estimation scheme. A system total transmit power minimization problem is studied and formulated as a multi-objective optimization (MOO) problem via the weighted Tchebycheff approach. A set of linear matrix inequalities (LMI) is used to transform the non-convex form of constraints into the convex form. Considering the imperfect CSI of the potential eavesdropper for robust power allocation, a bounded transmission beamforming vector design along with artificial noise (AN) is used, while satisfying the requirements from the secrecy rates as well as the energy harvesting (EH) task. Numerical simulation results validate the convergence performance and the trade-off between the uplink (UL) and downlink (DL) data transmit power. It is also shown that by FD and NOMA, the performance of the proposed algorithm is higher than that of half-duplex (HD) and orthogonal multiple access (OMA).

scholarly journals Hybrid One-Way Full-Duplex/Two-Way Half-Duplex Relaying Scheme

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 7737-7745 ◽  
Author(s):  
Yurong Wang ◽  
Kui Xu ◽  
Aijun Liu ◽  
Xiaochen Xia
Keyword(s):  
Full Duplex ◽  
Half Duplex

Design and Implementation of a Multi-Channel HDLC Protocol Controller Based on FPGA

2011 ◽  
Vol 383-390 ◽  
pp. 6840-6845 ◽  
Author(s):  
Yong Hong Gu ◽  
Wei Huang ◽  
Qiao Li Yang
Keyword(s):  
Error Control ◽  
Data Transfer ◽  
Full Duplex ◽  
Programmable Logic ◽  
Data Link ◽  
Total Cost ◽  
Half Duplex ◽  
Level Data ◽  
Layer 2 ◽  
High Level

To transmit and receive data over any network successfully, a protocol is required to manage the flow. High-level Data Link Control (HDLC) protocol is defined in Layer 2 of OSI model and is one of the most commonly used Layer 2 protocol. HDLC supports both full-duplex and half-duplex data transfer. In addition, it offers error control and flow control. Currently on the market there are many dedicated HDLC chips, but these chips are neither of control complexity nor of limited number of channels. This paper presents a new method for implementing a multi-channel HDLC protocol controller using Altera FPGA and VHDL as the target technology. Implementing a multi-channel HDLC protocol controller in FPGA offers the flexibility, upgradability and customization benefits of programmable logic and also reduces the total cost of every project which involves HDLC protocol controllers.

Full‐duplex and half‐duplex: power efficiency comparison

2016 ◽  
Vol 52 (6) ◽  
pp. 483-485 ◽  
Author(s):  
Dingzhu Wen ◽  
Guanding Yu
Keyword(s):  
Power Efficiency ◽  
Full Duplex ◽  
Half Duplex ◽  
Efficiency Comparison

scholarly journals Outage Performance of Bidirectional Full-Duplex Amplify-and-Forward Relay Network with Transmit Antenna Selection and Maximal Ratio Combining

2018 ◽  
Vol 1 ◽  
pp. 62-69
Author(s):  
R. Rajesh ◽  
P. G. S. Velmurugan ◽  
S. J. Thiruvengadam ◽  
P. S. Mallick
Keyword(s):  
Antenna Selection ◽  
Relay Node ◽  
Maximal Ratio Combining ◽  
Full Duplex ◽  
Relay Network ◽  
Amplify And Forward ◽  
Transmit Antenna Selection ◽  
Outage Performance ◽  
Half Duplex ◽  
Af Relay

In this paper, a bidirectional full-duplex amplify- and-forward (AF) relay network with multiple antennas at source nodes is proposed. Assuming that the channel state information is known at the source nodes, transmit antenna selection and maximal ratio combining (MRC) are employed when source nodes transmit information to the relay node and receive information from the relay node respectively, in order to improve the overall signal-to-interference plus noise ratio (SINR). Analytical expressions are derived for tight upper bound SINR at the relay node and source nodes upon reception. Further, losed form expressions are also derived for end-to-end outage probability of the proposed bidirectional full-duplex AF relay network in the Nakagami-m fading channel environment. Although self-interference at the relay node limits the performance of the full-duplex network, the outage performance of the proposed network is better than that of conventional bidirectional full-duplex and half-duplex AF relay networks, due to the selection diversity gain in TAS and diversity and array gain in MRC.

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