Security enhancement with joint transmit antenna selection and transmit beamforming under energy harvesting constraints

2020 ◽  
Vol 33 (4) ◽  
pp. e4230
Author(s):  
Sai Zhao ◽  
Maoxin Tian ◽  
Quanzhong Li ◽  
Gaofei Huang ◽  
Dong Tang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Antenna Selection ◽  
Transmit Beamforming ◽  
Transmit Antenna Selection ◽  
Security Enhancement

Transmit Antenna Selection for Security Enhancement in MIMO Wiretap Channels

2013 ◽  
Vol 61 (1) ◽  
pp. 144-154 ◽  
Author(s):  
Nan Yang ◽  
Phee Lep Yeoh ◽  
Maged Elkashlan ◽  
Robert Schober ◽  
Iain B. Collings
Keyword(s):  
Antenna Selection ◽  
Transmit Antenna Selection ◽  
Wiretap Channels ◽  
Security Enhancement ◽  
Selection For

scholarly journals Switchable Coupled Relays Aid Massive Non-Orthogonal Multiple Access Networks with Transmit Antenna Selection and Energy Harvesting

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1101
Author(s):  
Thanh-Nam Tran ◽  
Miroslav Voznak
Keyword(s):  
Energy Harvesting ◽  
Closed Form ◽  
Massive Mimo ◽  
Antenna Selection ◽  
System Throughput ◽  
The Novel ◽  
Transmit Antenna Selection ◽  
Information Power ◽  
Multiple Devices ◽  
Theoretical Results

The article proposes a new switchable coupled relay model for massive MIMO-NOMA networks. The model equips a much greater number of antennas on the coupled relays to dramatically improve capacity and Energy Efficiency (EE). Each relay in a coupled relay is selected and delivered into a single transmission block to serve multiple devices. This paper also plots a new diagram of two transmission blocks which illustrates energy harvesting and signal processing. To optimize the system performance of a massive MIMO-NOMA network, i.e., Outage Probability (OP) and system throughput, this paper deploys a Transmit Antenna Selection (TAS) protocol to select the best received signals from the pre-coding channel matrices. In addition, to achieve better EE, Simultaneously Wireless Information Power Transmit (SWIPT) is implemented. Specifically, this paper derives the novel theoretical analysis in closed-form expressions, i.e., OP, system throughput and EE from a massive MIMO-NOMA network aided by switchable coupled relays. The theoretical results obtained from the closed-form expressions show that a massive MIMO-NOMA network achieves better OP and greater capacity and expends less energy than the MIMO technique. Finally, independent Monte Carlo simulations verified the theoretical results.

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