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Adaptive Network Coding over Cognitive Relay Networks
(
IEEE
, 2013 , Conference Paper)
We consider network coded cooperation for cognitive relay networks. The primary system comprises multiple sources and multiple destinations, whereas the secondary system comprises multiple sources, multiple relays and a ...
Joint optimization of throughput and delay over PPP interfered relay networks
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
Future wireless networks are expected to achieve higher data rates and ubiquitous coverage by seamless cooperation among diverse network technologies. However, it also increases the risk of co-channel interference and ...
Doppler compensation for AF two way relaying over time varying UWA channels
(
IEEE
, 2014 , Conference Paper)
In this paper, we consider Doppler compensation for time varying underwater acoustic channels. The underlying system model comprises two sources, S1 and S2, communicating with each other through a relay, R. The transmission ...
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 ...
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 ...
Doppler compensation for D-STBC coded time-varying underwater acoustic channels
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
In this paper we investigate the performance of distributed space-time block coding (D-STBC) orthogonal frequency division multiplexing (OFDM) over underwater acoustic (UWA) channels. In particular, we consider a relaying ...
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 ...
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 ...
A minorization-maximization algorithm for an-based mimome secrecy rate maximization
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Conference Paper)
We consider the problem of secrecy rate maximization in a multi-input multi-output multi-eavesdropper (MIMOME) wiretap channel and present an exact solution. A general system model with a multi-antenna eavesdropper and a ...
Precoded spatial modulation for the wiretap channel with relay selection and cooperative jamming
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Conference Paper)
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 ...