Results 21 to 30 of about 15,298 (164)
Hybrid Decode-Forward & Amplify-Forward Relaying With Non-Orthogonal Multiple Access
IEEE Access, 2016 Cooperative communication has used to be a hot topic and it has been studied extensively in the past 10 years, but in recent years, it becomes less likely to find substantial innovation in this field as before.
Yang Liu +3 more
doaj +1 more source
Optimal Relay Selection Scheme Based on Hybrid Decode-Amplify-and-Forward [PDF]
Jisuanji gongcheng, 2017 In order to extend the network life on the base of lower Symbol Error Rate(SER),a relay selection scheme based on Hybrid Decode-Amplify-and-Forward(HDAF) relaying method is proposed.Joint optimization function about receiving Signal to Noise Ratio(SNR ...
SUN Wensheng,LI Leyuan
doaj +1 more source
Cooperative Strategies for Simultaneous and Broadcast Relay Channels [PDF]
, 2012 Consider the \emph{simultaneous relay channel} (SRC) which consists of a set of relay channels where the source wishes to transmit common and private information to each of the destinations.
Behboodi, Arash, Piantanida, Pablo
core +3 more sources
Secrecy Performance Analysis of Relay Selection in Cooperative NOMA Systems
IEEE Access, 2019 This paper investigates the security performance of two relay selection schemes for cooperative non-orthogonal multiple access (NOMA) systems, where K randomly distributed relays are employed with either decode-and-forward (DF) or amplify-and-forward (AF)
Zhenling Wang, Zhangyou Peng
doaj +1 more source
Spectrum and Energy Efficiency Equilibrium Scheme for Decode and Forward Relay Networks [PDF]
Jisuanji gongcheng, 2020 In order to reduce network resource consumption and ensure green communication,this paper proposes a scheme to balance Spectrum Efficiency(SE) and Energy Efficiency(EE) of Decode and Forward(DF) Two-Way Relay Transmission(TWRT) and One-Way Relay ...
GAO Zhongxia, QIU Runhe
doaj +1 more source
Diversity-Multiplexing Tradeoffs in MIMO Relay Channels
, 2008 A multi-hop relay channel with multiple antenna terminals in a quasi-static slow fading environment is considered. For both full-duplex and half-duplex relays the fundamental diversity-multiplexing tradeoff (DMT) is analyzed.
Goldsmith, Andrea +2 more
core +1 more source
ICT Express, 2019 In this letter, we propose two power allocation strategies, named Optimal Power Allocation (OPA) and Equal Intercept Probability (EIP), for dual-hop cooperative decode-and-forward (DF) relaying networks under constraint of intercept probability (IP ...
Phu Tran Tin, Tran Trung Duy
doaj +1 more source
When Can a Relay Reduce End-to-End Communication Delay?
, 2014 The impact of relaying on the latency of communication in a relay channel is studied. Both decode-forward (DF) and amplify-forward (AF) are considered, and are compared with the point-to-point (P2P) scheme which does not use the relay. The question as to
Chaaban, Anas, Sezgin, Aydin
core +1 more source
Energy Efficiency of a Decode-and-Forward Multiple-Relay Network with Rate Adaptive LDPC Codes
Sensors, 2019 This paper presents cooperative transmission (CT), where multiple relays are used to achieve array and diversity gains, as an enabling technology for Internet of Things (IoT) networks with hardware-limited devices.
Bushra Bashir Chaoudhry +3 more
doaj +1 more source
Performance Comparison between Adaptive and Fixed Transmit Power in Underlay Cognitive Radio Networks [PDF]
, 2013 In this paper, we compare the performance in terms of symbol error probability, data rate and power consumption of the use of fixed transmit power (FTP) and adaptive transmit power (ATP) in underlay cognitive radio networks. The use of FTP alleviates the
Ajib, Wessam +2 more
core +1 more source