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Generalized area spectral efficiency: An effective performance metric for green wireless communications
(
IEEE
, 2014 , Article)
Area spectral efficiency (ASE) was introduced as a metric to quantify the spectral utilization efficiency of cellular systems. Unlike other performance metrics, ASE takes into account the spatial property of cellular ...
Antenna subset selection at multi-antenna relay with adaptive modulation
(
John Wiley & Sons, Ltd.
, 2013 , Article)
In this paper, we proposed several antenna selection schemes for cooperative diversity systems with adaptive transmission. The proposed schemes were based on dual-hop relaying where a relay with multiple-antenna capabilities ...
A Collaboration Incentive Exploiting the Primary-Secondary Systems' Cross Interference for PHY Security Enhancement
(
IEEE
, 2016 , Article)
We investigate the spectrum sharing possibility as an incentive to enhance the physical layer security. The concept behind is that a legitimate source-destination pair, communicating in the presence of a passive eavesdropper, ...
Opportunistic spectrum sharing in relay-assisted cognitive systems with imperfect CSI
(
IEEE
, 2014 , Article)
In this paper, we consider spectrum sharing between cognitive radio (CR) users and a licensed primary user (PU) to enhance the spectrum efficiency. In the considered scenario, the PU is not able to successfully transmit ...
Mode selection schemes for D2D enabled unmanned aerial vehicle-based wireless networks
(
Institution of Engineering and Technology
, 2019 , Article)
In this study, the authors present and evaluate the performance of two mode selection schemes for device-to-device (D2D) enabled unmanned aerial vehicle-based wireless networks. The proposed schemes are based on a threshold ...
A Stochastic Geometric Analysis of Device-to-Device Communications Operating over Generalized Fading Channels
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Article)
Device-to-device (D2D) communications are now considered an integral part of future 5G networks, which will enable direct communication between user equipments and achieve higher throughputs than conventional cellular ...
Modeling and Performance Analysis of 3-D Heterogeneous Networks with Interference Management
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Article)
This letter proposes a general 3-D model for heterogeneous networks (HetNets). The model uses stochastic geometry to describe the different network nodes' positions in a 3-D space. In addition, a new transmission scheme ...
Performance analysis of secure AF relay networks using cooperative jamming under outdated CSI
(
Institution of Engineering and Technology
, 2017 , Article)
This paper studies cooperative transmission for securing a two-hop network where the eavesdropper can wiretap the relay channels. With outdated channel state information (CSI), we propose an opportunistic relaying with ...
An Adaptive Transmission Scheme for Two-Way Relaying with Asymmetric Data Rates
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Article)
In this paper, we address the problem of asymmetric data rates in two-way communication systems. In particular, we propose an adaptive transmission scheme that combines network coding (NC) and opportunistic user selection ...
Area spectral efficiency of infrastructure relay enhanced cellular systems
(
Institution of Engineering and Technology
, 2016 , Article)
In this study, the authors investigate the downlink area spectral efficiency (ASE) of infrastructure relay enhanced cellular systems. ASE for cellular systems is defined as the maximum achievable data rate per unit bandwidth ...