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Outage rates and outage durations of opportunistic relaying systems

Zoran Hadzi-Velkov, Nikola Zlatanov
2010 IEEE Communications Letters  
rate (AOR) and the average outage duration (AOD).  ...  number of (fixed-gain amplify-and-forward or decode-and-forward) mobile relays in Rayleigh fading environment.  ...  Fig. 1 . 1 Normalized Average Outage Rate in DF and AF opportunistic relaying systems Fig. 2 . 2 Normalized Average Outage Duration in DF and AF opportunistic relaying systems  ... 
doi:10.1109/lcomm.2010.02.091683 fatcat:2zdoehmogja35f5fge7gjbzt5u

Outage Rate and Outage Duration of Decode-and-Forward Cooperative Diversity Systems

Nikola Zlatanov, Zoran Hadzi-Velkov, George K. Karagiannidis, Robert Schober
2011 2011 IEEE International Conference on Communications (ICC)  
In this paper, we derive the average outage rate (AOR) and the average outage duration (AOD) of two well-known cooperative diversity protocols, decode-and-forward relaying and selection decode-and-forward  ...  A complete evaluation of the benefits of cooperative diversity schemes should not only include the outage and error rate performance but also the second-order statistics of the achievable information-theoretic  ...  systems by the average outage rate (AOR) and the average outage duration (AOD).  ... 
doi:10.1109/icc.2011.5963317 dblp:conf/icc/ZlatanovHKS11 fatcat:vr3zlha2ynfidbqhqaw7nr2gby

Performance analysis of decode-and-forward relaying schemes with adaptive quadrature amplitude modulation (QAM)

E.S. Altubaishi, X. (Sherman) Shen
2012 IET Communications  
They provide performance analysis in terms of average spectral efficiency, average bit error rate and outage probability over independent non-identically Rayleigh fading channels.  ...  In this study, the authors propose two schemes to enhance the spectral efficiency of the decode-and-forward adaptive relaying with adaptive modulation.  ...  In this study, we propose two schemes for DF relaying with adaptive modulation. The first scheme presents a solution for enhancing the spectral efficiency of the DF wireless networks.  ... 
doi:10.1049/iet-com.2011.0207 fatcat:odjksajg7nd3nmls7zp2nxdjna

Outage Analysis for Coherent Decode-Forward Relaying Over Rayleigh Fading Channels

Ahmad Abu Al Haija, Mai Vu
2015 IEEE Transactions on Communications  
These analyses provide a fundamental understanding of the reliability of coherent pDF relaying and form the basis for analyzing performance in larger network settings.  ...  We further show that at high SNR, coherent pDF relaying converges to full DF relaying and achieves the full diversity order of 2.  ...  For the basic single relay channel, outage performance has been analyzed for a variety of half-duplex full DF schemes from dual-hop to selection relaying with variable phase durations and power allocation  ... 
doi:10.1109/tcomm.2015.2402154 fatcat:n754ij6oj5cm7n2bgrsfvef2em

Transform Domain Processing Based Cooperative Spectrum Sharing Protocol with Adaptive Relaying

Wu Xuanli, Han Xingling, Deng Xiao, Fabrice Labeau, Han Shuai
2018 IEEE Transactions on Cognitive Communications and Networking  
Moreover, an adaptive relaying mechanism is used in our protocol to improve the flexibility of cooperation.  ...  Moreover, lower outage probability, higher achievable data rate and average energy efficiency of the secondary system can be realized with an increase in the number of secondary users.  ...  and T is the signal duration.  ... 
doi:10.1109/tccn.2018.2821148 fatcat:hmbvqf7cxzax3d3k7fvajrkrwe

On the Performance of Time-Orthogonal Incremental Relaying Based on Demodulate-and-Forward With Distributed Channel Access

Kuang-Hao Liu
2012 IEEE Transactions on Vehicular Technology  
Important performance metrics including the outage probability and the average duration to complete a transmission cycle are derived in closed-form for flat Rayleigh fading channels.  ...  This paper considers demodulate-and-forward (DmF)-based incremental relaying (IR) in a distributed setting, where each relay makes the decision on cooperation locally to eliminate network-wide coordination  ...  [6] extended the consideration to the multi-relay network, in which the best relay selection for cooperative relaying and adaptive modulation for variable-rate transmission were considered.  ... 
doi:10.1109/tvt.2011.2178440 fatcat:ugp7ayghhbbc5ns4zvlk6c5ewm

On the performance of ultra-reliable decode and forward relaying under the finite blocklength

Parisa Nouri, Hirley Alves, Matti Latva-aho
2017 2017 European Conference on Networks and Communications (EuCNC)  
In this paper, we examine the performance of the decode-and-forward (DF) relaying protocols with finite blocklength (FB).  ...  More importantly, we derive the closed form expressions of the outage probability in the three relaying scenarios.  ...  ACKNOWLEDGMENTS This work has been partially supported by Finnish Funding Agency for Technology and Innovation (Tekes), Huawei Technologies, Nokia and Anite Telecoms, and Academy of Finland (under Grant  ... 
doi:10.1109/eucnc.2017.7980736 dblp:conf/eucnc/NouriAL17 fatcat:sqvi4ip7m5gd5icdvfp7dd5llq

Bidirectional Cooperative Relaying [chapter]

Prabhat Kumar, Shankar Prakriy
2010 Radio Communications  
Dynamic resource allocation has been investigated in (Agustin et al., 2008) in terms of phase durations, individual and sum-average power, and data rate.  ...  Adaptive relaying schemes build upon fixed relaying and adapt based upon Channel State Information (CSI) between cooperating terminals (selective relaying) or upon limited feedback from the destination  ... 
doi:10.5772/9372 fatcat:bue4trrqdrc63imz3mkpodn4nm

Energy-efficient resource allocation in cooperative OFDMA systems

Fatma Irem Sökmen, Tolga Girici
2010 Proceedings of the 5th International ICST Conference on Wireless Internet  
The goal in resource allocation is to allocate resources (time slots, subchannels and power) in an energy efficient manner given target rates and target outage probability.  ...  We are interested in the case that the source and relay only have the information of path loss and slow fading.  ...  Joint resource allocation and selection of cooperation strategies and relay to be used in multi relay systems has been studied in [7] .  ... 
doi:10.4108/icst.wicon2010.8511 dblp:conf/wicon/GiriciS10 fatcat:ibgwguicfvdrrgqjdd6bf4kfli

On the Performance of Ultra-Reliable Decode and Forward Relaying Under the Finite Blocklength [article]

Parisa Nouri, Hirley Alves, Matti Latva-aho
2017 arXiv   pre-print
In this paper, we examine the performance of the decode-and-forward (DF) relaying protocols with finite blocklength (FB).  ...  More importantly, we derive the closed form expressions of the outage probability in the three relaying scenarios.  ...  ACKNOWLEDGMENTS This work has been partially supported by Finnish Funding Agency for Technology and Innovation (Tekes), Huawei Technologies, Nokia and Anite Telecoms, and Academy of Finland (under Grant  ... 
arXiv:1706.06883v1 fatcat:qvue7oj2sfbdjkflzk7hr44rxi

Cooperative Fading Regions for Decode and Forward Relaying

Stefano Savazzi, Umberto Spagnolini
2008 IEEE Transactions on Information Theory  
Cooperative link performances at high SNR are conveniently expressed here in terms of diversity and coding gain as outage parameters that are provided by the fading statistics of the channels involved  ...  Advantages of cooperative transmission compared to multi-antenna are related to the propagation environment so that the analysis can be used in network design.  ...  Selective (or Adaptive) Decode and Forward-S-DF Protocol description: the Selective (or adaptive) Decode and Forward [2] (S-DF) is in Fig. 2 (d).  ... 
doi:10.1109/tit.2008.929911 fatcat:age4xfirozgqpd4vy7td2rbtza

Performance analysis of ultra-reliable short message decode and forward relaying protocols

Parisa Nouri, Hirley Alves, Matti Latva-aho
2018 EURASIP Journal on Wireless Communications and Networking  
Moreover, we illustrate the impact of coding rate on the probability of successful transmission in ultra-reliable region in addition to the effect of power allocation on the outage probability.  ...  We also provide the performance analysis of cooperative schemes in terms of energy efficiency and latency requirements.  ...  Furthermore, authors in [31] study the achievable coding rate and ergodic capacity of non-orthogonal amply-and-forward (AF) multi-relay network subject a total average power constraint (TAPC) and an  ... 
doi:10.1186/s13638-018-1210-6 fatcat:bwwvwyaodberdeewmzvb4b4rwq

Bit and Power Loading for OFDM-Based Three-Node Relaying Communications

Yi Ma, Na Yi, R. Tafazolli
2008 IEEE Transactions on Signal Processing  
This orthogonal half-duplex relay operates either in the selection detection-and-forward (SDF) mode or in the amplify-and-forward (AF) mode.  ...  In this paper, we propose a margin-adaptive BPL approach for orthogonal frequency-division multiplexing (OFDM) systems assisted by a single cooperative relay.  ...  Qing Zhao, and anonymous reviewers for the efficient review process and extremely consecutive and supportive comments.  ... 
doi:10.1109/tsp.2008.920493 fatcat:y52kisdorvcwxccxpstoznvkoq

Outage Analysis of Superposition-Modulation-Aided Network-Coded Cooperation in the Presence of Network Coding Noise

Bo Zhang, Jie Hu, Ying Huang, Mohammed El-Hajjar, Lajos Hanzo
2015 IEEE Transactions on Vehicular Technology  
We consider a network, where multiple sourcedestination pairs communicate with the aid of a half-duplex relay node (RN), which adopts decode-forward (DF) relaying and superposition-modulation (SPM) for  ...  Finally, we use the lower bound for designing a relay selection scheme for the proposed SPM based network coded cooperative communication (SPM-NC-CC) system.  ...  The outage performance of ANC for bidirectional transmissions is studied from different aspects in the literature, including the optimal power allocation [8, 9] , adaptive AF/DF scheme [10] , relay selection  ... 
doi:10.1109/tvt.2014.2322074 fatcat:fobbengwrfbitdyjzlbkkvmulm

A Multi-Objective Target-Oriented Cooperative MAC Protocol for Wireless Ad-hoc Networks with Energy Harvesting

Damilare Oluwole Akande, Mohd Fadzli Mohd Salleh
2020 IEEE Access  
We then investigate the performance of deploying a selective time-switching relaying (TSR) and power-splitting relaying (PSR) schemes in the MAC layer stack for a decode-and-forward (DF) reactive relaying  ...  Also, we propose a distributed and adaptive relay selection algorithm to select the best helper node that improves the network performance and balance the network energy consumption.  ...  and adaptive relay selection backoff process in both network lifetime optimization and outage probability QoS requirement technique, respectively at their respective optimal values.  ... 
doi:10.1109/access.2020.2970721 fatcat:2wqpf5krafe5rmg4hngkx6kc24
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