Electrical Engineering: المرسلات الحديثة
السجلات المعروضة 1261 -- 1280 من 2817
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A downlink index-modulation based nonorthogonal multiple access scheme
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference)Massive connectivity and spectral efficiency are among the main defining terms of the future communications era. Therefore, revolutionary technologies are required to keep up with the connectivity and spectrum demands. ... -
On the Error Performance of Non-orthogonal Multiple Access Systems
( IEEE Computer Society , 2020 , Conference)Unlike orthogonal multiple access schemes, non-orthogonal (NOMA) ones have arisen as an appealing solution to meet the requirements of the upcoming era of massive connectivity. In NOMA schemes, users are allowed to ... -
On Optimizing the Secrecy Performance of RIS-Assisted Cooperative Networks
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference)Employing reconfigurable intelligent surfaces (RIS) is emerging as a game-changer candidate, thanks to their unique capabilities in improving the power efficiency and supporting the ubiquity of future wireless communication ... -
Secrecy Performance Analysis of RIS-Aided Wireless Communication Systems
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In this work, we study the secrecy performance of a reconfigurable intelligent surfaces (RIS)-aided wireless communication system in the presence of an eavesdropping user. Specifically, we assume that the RIS is placed ... -
On the Performance of RIS-Assisted Dual-Hop UAV Communication Systems
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In this paper, to further improve the coverage and performance of unmanned aerial vehicle (UAV) communication systems, we propose a reconfigurable intelligent surface (RIS)-assisted UAV scheme where an RIS installed on a ... -
Secrecy Outage Performance of Ground-to-Air Communications with Multiple Aerial Eavesdroppers and Its Deep Learning Evaluation
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In this letter, we study the secure information transmission from a ground base station (GBS) to a legitimate unmanned aerial vehicle (UAV) user, in the presence of multiple UAV eavesdroppers. To enhance the secrecy ... -
Amount of Secrecy Loss: A Novel Metric for Physical Layer Security Analysis
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In this letter, we present a novel and important performance metric for analyzing and evaluating the physical layer security of wireless communication systems in the presence of eavesdropping users. Specifically, we introduce ... -
Self-Energized UAV-Assisted scheme for cooperative wireless relay networks
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Unmanned aerial vehicles (UAVs) have recently been envisaged as an enabling technology of 5G. UAVs act as an intermediate relay node to facilitate uninterrupted, high quality communication between information sources and ... -
Smart and Secure Wireless Communications via Reflecting Intelligent Surfaces: A Short Survey
( 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, ... -
Generalized area spectral efficiency of wireless ad-hoc networks over Rayleigh fading
( Korean Institute of Communication Sciences , 2020 , Article)Generalized area spectral efficiency (GASE) was introduced as a metric to quantify the spectral utilization efficiency of wireless transmissions. Unlike other performance metrics, GASE takes into account the spatial property ... -
On the Ergodic Secrecy Rate of Massive MIMO Transmission with Partial Legitimate User CSI
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference)In this paper, we consider the downlink transmission over a single-cell massive multiple-input-multiple-output (MIMO) system in the presence of multiple single-antenna eavesdroppers (massive MIMOME). We concentrate on the ... -
A novel energy harvesting scheme for mixed fso-rf relaying systems
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)In this correspondence paper, we consider the performance of a mixed free-space optical and radio frequency (FSO-RF) relaying system with energy harvesting in the existence of both atmospheric turbulence and pointing errors. ... -
Coverage, Probability of SNR Gain, and DOR Analysis of RiS-Aided Communication Systems
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Recent studies have shown that reconfigurable Intelligent surfaces (RiSs) can help In extending the wireless coverage. However, no work has quantitatively analyzed the coverage. In this letter, we present the coverage ... -
Secrecy outage analysis over random beamforming transmission with user scheduling: Collusion vs. exclusion
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In this letter, we study the interacting effects of the exclusion zone and eavesdropper colluding strategy on the secrecy performance of multiple-antenna transmission system. In particular, a base station (BS) applies ... -
On the Achievable Secrecy Diversity of Cooperative Networks with Untrusted Relays
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)Cooperative relaying is often deployed to enhance the communication reliability (i.e., diversity order) and consequently the end-to-end achievable rate. However, this raises several security concerns when the relays are ... -
Modeling Heterogeneous Cellular Networks Interference Using Poisson Cluster Processes
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)Future mobile networks are converging toward heterogeneous multitier networks, where macro-, pico-, and femto-cells are randomly deployed based on user demand. A popular approach for analyzing heterogeneous networks (HetNets) ... -
Precoding-Aided Spatial Modulation for the Wiretap Channel with Relay Selection and Cooperative Jamming
( Hindawi Limited , 2018 , Article)We propose in this paper a physical-layer security (PLS) scheme for dual-hop cooperative networks in an effort to enhance the communications secrecy. The underlying model comprises a transmitting node (Alice), a legitimate ... -
Effective area spectral efficiency for wireless communication networks with interference management
( Springer International Publishing , 2015 , Article)In this paper, we introduce a new metric, namely, effective area spectral efficiency (EASE), to quantify the spectral efficiency as well as the spatial properties of point-to-point transmission systems and decode and forward ... -
Performance Analysis of Amplify-and-Forward Hybrid Satellite-Terrestrial Networks with Cochannel Interference
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)In this paper, we consider an amplify-and-forward hybrid satellite-terrestrial co-operative network in the presence of cochannel interference (CCI). More specifically, we assume that both the satellite-destination and the ... -
Performance analysis of cooperative communication system with feedback delay and channel estimation error
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference)In this paper, we investigate the impact of feedback delay and channel estimation error (CEE) on the performance of wireless multi-user decode-and-forward (DF) relay systems in independent and non identically distributed ...