Results 21 to 30 of about 14,391 (289)

Two-Stage Superposed Transmission for Cooperative NOMA Systems

open access: yesIEEE Access, 2018
In this paper, a two-stage superposed transmission scheme for cooperative nonorthogonal multiple access (NOMA) systems is proposed. During the first N time slots, the source simultaneously transmits the superposition coded symbols to the relay and ...
Wei Duan   +4 more
doaj   +1 more source

Performance of Multihop Wireless Links over Generalized-K Fading Channels [PDF]

open access: yes, 2010
The performance of multihop links is studied in this contribution by both analysis and simulations, when communicating over Generalized-K (KG ) fading channels. The performance metrics considered include symbol error rate (SER), outage probability, level
Zhangdui Zhong   +5 more
core   +1 more source

Outage Performance of the Full-Duplex Two-Way DF Relay System Under Imperfect CSI

open access: yesIEEE Access, 2017
Contrary to the most existing works about the full-duplex (FD) relaying with perfect channel state information (CSI), this paper studies the outage performance of the two-way FD decode-and-forward relay network under the joint effects of the residual ...
Cheng Li   +5 more
doaj   +1 more source

Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC [PDF]

open access: yes, 2018
In this paper, we study power allocation for downlink multi-carrier non-orthogonal multiple access (MC-NOMA) systems and examine the effects of residual cancellation errors resulting from imperfect successive interference cancellation (SIC) on the system
Shenhong Li (7210787)   +2 more
core   +2 more sources

NOMA-Based User Cooperation With Incremental Hybrid Forwarding Protocols

open access: yesIEEE Open Journal of the Communications Society, 2021
In this paper, we investigate the performance of a non-orthogonal multiple access (NOMA) wireless system, in which signal transmission of a far user is assisted by a near user.
Suyue Li   +5 more
doaj   +1 more source

On Converged Secrecy Outage Performance for RIS-Aided Communications

open access: yes2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall), 2023
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

Outage probability analysis of vehicular communication system with two-way AF cooperation

open access: yesDianzi Jishu Yingyong, 2018
In vehicular communication system, two-way cooperative communication can improve system performance. However, vehicle mobile communication will cause the two-way link correlation and thus reduce the system outage performance.
Lin Xiaoyu, Qiu Bin, Xiao Hailin
doaj   +1 more source

Outage performance of SWIPT-NOMA-CR network with imperfect SIC and CSI

open access: yes物联网学报, 2023
For the cognitive relay network based on simultaneous wireless information and power transfer (SWIPT) and non-orthogonal multiple access (NOMA), which is termed as SWIPT-NOMA-CR network, considering the practical situation of imperfect successive ...
Zhuhua MA, Liping LUO
doaj   +2 more sources

On Exact Outage and Throughput Performance of Cognitive Radio based Non-Orthogonal Multiple Access Networks With and Without D2D Link

open access: yesSensors, 2019
In this paper, we investigate the performance of a secondary network in a cognitive radio network employing a non-orthogonal multiple access (NOMA) scheme to form a CR-NOMA system serving many destination users.
Dinh-Thuan Do   +3 more
doaj   +1 more source

Performance analysis of energy-harvesting-aware multi-relay networks in Nakagami-m fading

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
This paper investigates the outage performance of an energy-harvesting(EH) relay-aided cooperative network, where the source node transmits information to its destination node with the help of multiple energy-harvesting cooperative nodes.
Shaohong Zhong, Huajun Huang, Renfa Li
doaj   +1 more source

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