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Relay selection in underlay cognitive networks with fixed transmission power nodes
(
John Wiley & Sons, Ltd.
, 2013 , Article)
Underlay cognitive networks operate simultaneously with primary networks satisfying stringent interference constraints, which reduces their transmission power and coverage area. To reach remote destinations, secondary ...
Mitigating error propagation in two-way relay channels with network coding
(
IEEE
, 2010 , Article)
In relay networks, error propagation at the relay nodes degrades the performance of the system. To combat that effect, it has been suggested to implement a reliability threshold at the relay to control error propagation. ...
Location privacy preservation in secure crowdsourcing-based cooperative spectrum sensing
(
Springer International Publishing
, 2016 , Article)
Spectrum sensing is one of the most essential components of cognitive radio since it detects whether the spectrum is available or not. However, spectrum sensing accuracy is often degraded due to path loss, interference, ...
A Minorization-Maximization Algorithm for Maximizing the Secrecy Rate of the MIMOME Wiretap Channel
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Article)
We consider physical layer security in a multi-input multi-output multi-eavesdropper wiretap channel and present an exact solution to the problem of secrecy rate maximization. A system model with multiple multi-antenna ...
A Novel Downlink IM-NOMA Scheme
(
Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
In the next generations of communication systems, resources' scarcity devolves to a more critical point as a consequence of the expected massive number of users to be served. Furthermore, the users' contradicting requirements ...
Prior zero forcing for cognitive relaying
(
IEEE
, 2013 , Article)
Relaying primary signals by cognitive base-stations (CBSs) can help the primary system and thus win CBSs a higher chance to transmit their own signals. For this purpose, conventional zero-forcing (CZF) beamforming is a ...
Novel selective OFDM-based cooperative techniques for multi-hop systems
(
Elsevier B.V.
, 2015 , Article)
In multi-hop systems, the theoretical outage probabilities and diversity orders of novel Orthogonal Frequency Division Multiplexing (OFDM) based Decode and Forward (DF) cooperative techniques are derived for different ...
Smart and Secure Wireless Communications via Reflecting Intelligent Surfaces: A Short Survey
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Institute of Electrical and Electronics Engineers Inc.
, 2020 , Article)
With the emergence of the Internet of Things (IoT) technology, wireless connectivity should be more ubiquitous than ever. In fact, the availability of wireless connection everywhere comes with security threats that, ...
Performance of THz Communications Over Cascaded RISs: A Practical Solution to the Over-Determined Formulation
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Institute of Electrical and Electronics Engineers Inc.
, 2022 , Article)
As a last resort for radio frequency communication, Terahertz bands (0.1-10 THz) are targeted thanks to their ability to provide ultra-wide bandwidth satisfying varieties of emerging applications. However, the waves ...
A Secrecy Study of UAV Based Networks with Fountain Codes and FD Jamming
(
Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
Securing wireless communication using different techniques has been an interesting topic for research, especially with the increasing demand on fast and secure transmission. In this research, we conduct a performance ...