Results 11 to 20 of about 14,424 (285)
Downlink outage performance of heterogeneous cellular networks [PDF]
This paper derives tight performance upper and lower bounds on the downlink outage efficiency of K-tier heterogeneous cellular networks (HCNs) for general signal propagation models with Poisson distributed base stations in each tier. In particular, the proposed approach to analyze the outage metrics in a K-tier HCN allows for the use of general bounded
Serkan Ak +2 more
openaire +4 more sources
Research on Outage Performance Optimization of Cognitive Relay Network with Cooperative Sensing [PDF]
In this work, cooperative spectrum sensing technology is applied to optimize the outage probability of cognitive relay networks. The outage performance optimization problem of cognitive relay networks is resolved by designing the sensing time and fusion ...
Yaolian Song +3 more
doaj +3 more sources
Outage performance analysis of multicarrier relay selection for cooperative networks [PDF]
In this paper, we analyze the outage performance of two multicarrier relay selection schemes, i.e. bulk and per-subcarrier selections, for two-hop orthogonal frequency-division multiplexing (OFDM) systems. To provide a comprehensive analysis, three forwarding protocols: decode-and-forward (DF), fixed-gain (FG) amplify-and-forward (AF) and variable-gain
Dang, S, Coon, J, Chen, G, Simmons, D
openaire +5 more sources
Outage Performance in Secure Cooperative NOMA [PDF]
Enabling cooperation in a NOMA system is a promising approach to improve its performance. In this paper, we study the cooperation in a secure NOMA system, where the legitimate users are distributed uniformly in the network and the eavesdroppers are distributed according to a homogeneous Poisson point process.
Milad Abolpour +2 more
openaire +2 more sources
Outage Performance Analysis of RSMA-Aided Semi-Grant-Free Transmission Systems
In this paper, we analyze the outage performance of a rate-splitting multiple access (RSMA)-aided semi-grant-free (SGF) transmission system, in which a grant-based user (GBU) and multiple grant-free users (GFUs) access the base station by sharing the ...
Fengcheng Xiao +4 more
doaj +1 more source
Power Allocation Algorithm Minimizing Outage Probability in Cognitive Radio Relay Network [PDF]
To improve the outage performance of cognitive radio relay network,this paper proposes a power allocation algorithm minimizing outage probability by analyzing the system outage probability and user power allocation conditions.It presents the mathematical
ZHU Chunhua,ZHOU Yuping,CHEN Baoxing,ZHU Quan
doaj +1 more source
Physical layer security of reconfigurable intelligent surface empowered wireless network with cooperative jammer [PDF]
This paper evaluates the physical layer security performance of a reconfigurable intelligent surface (RIS) enabled wireless network in the presence of a passive eavesdropper.
Olakanmi Oladayo Olufemi +5 more
core +2 more sources
In a wireless system, dual-hop transmission requires Full-Duplex (FD) to transmit signals from the base station too far users. It is more beneficial if we deploy non-orthogonal multiple access to serve specific users, i.e.
Tu-Trinh Thi Nguyen, Dinh-Thuan Do
doaj +1 more source
On the Performance of Full-Duplex Cooperative NOMA With Non-Linear EH
This paper studies a non-linear energy harvesting (EH) enabled full-duplex (FD) cooperative non-orthogonal multiple access (C-NOMA) system, where the near user acts as an FD relay to assist the transmission from BS to far user with power-splitting (PS ...
Long Ma, Enyu Li, Qianqian Yang
doaj +1 more source
On Converged Secrecy Outage Performance for RIS-Aided Communications
Secrecy performance is one of the most crucial and interesting aspects of physical layer security (PLS) that has been analyzed in the past decades. Reconfigurable intelligent surface (RIS) is a cost-effective component to enhance the secrecy performance of wireless communication systems.
Junming Li +3 more
openaire +3 more sources

