Transmission strategy of fountain code in cooperative networks with multiple relay nodes

2009 ◽  
Author(s):  
E. Kurniawan ◽  
S. Sun ◽  
K. Yen
Keyword(s):  
Cooperative Networks ◽  
Relay Nodes ◽  
Transmission Strategy ◽  
Fountain Code ◽  
Multiple Relay

scholarly journals Security-Aware Relaying Scheme for Cooperative Networks With Untrusted Relay Nodes

2015 ◽  
Vol 19 (3) ◽  
pp. 463-466 ◽  
Author(s):  
Li Sun ◽  
Pinyi Ren ◽  
Qinghe Du ◽  
Yichen Wang ◽  
Zhenzhen Gao
Keyword(s):  
Cooperative Networks ◽  
Relay Nodes ◽  
Untrusted Relay

scholarly journals Channel Estimation of MIMO Relay Systems With Multiple Relay Nodes

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 27649-27658 ◽  
Author(s):  
Zhiqiang He ◽  
Jiaolong Yang ◽  
Xiaodan Wang ◽  
Yang Liu ◽  
Yue Rong
Keyword(s):  
Channel Estimation ◽  
Relay Nodes ◽  
Mimo Relay ◽  
Relay Systems ◽  
Multiple Relay

Convergence Aspects of Autonomic Cooperative Networks

2011 ◽  
Vol 6 (4) ◽  
pp. 51-62 ◽  
Author(s):  
Michal Wódczak
Keyword(s):  
Network Architecture ◽  
Ad Hoc ◽  
Local Area ◽  
Cooperative Networks ◽  
Mobile User ◽  
Cooperative Transmission ◽  
Base Stations ◽  
Relay Nodes ◽  
Hoc Networks ◽  
Advanced Access

The current efforts across industry and academia are to develop new paradigms that enable ubiquitous on-demand service provision. This aim may be achievable because of the envisaged deployment of cutting-edge technologies such as cooperative transmission. However, a real advancement is only attainable when autonomic system design principles are taken into account. Looking at the concept of the Relay Enhanced Cell, one may come across commonalities with Mobile Ad-hoc Networks. Especially in Local Area scenarios, Base Stations seem to resemble advanced Access Points, while fixed and movable Relay Nodes might be replaced by powerful mobile User Terminals. On top of it, Generic Autonomic Network Architecture would help accommodate the fact that network devices may expose autonomic cooperative behaviors, allowing them to play certain roles. Finally, such a network must interact with Operations Support System deployed by the network operator for uninterrupted, continued operation.

scholarly journals Trust Degree-Based MISO Cooperative Communications with Two Relay Nodes

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Jong Yeol Ryu ◽  
Jung Hoon Lee
Keyword(s):  
Cooperative Communications ◽  
Relay Selection ◽  
Cooperative Transmission ◽  
Achievable Rate ◽  
Selection Strategy ◽  
Relay Nodes ◽  
Transmission Strategy ◽  
Single Output ◽  
Multiple Input ◽  
Channel Conditions

In this paper, we propose transmission strategies in multiple-input-single-output (MISO) cooperative communications with two relay nodes in cases when the relay nodes have different trust degrees, where the trust degrees represent how much the relay nodes can be trusted for cooperation. For the given trust degrees and channel conditions, we first derive a relay selection strategy that maximizes the expected achievable rate. We then propose a cooperative transmission strategy of relays with an optimal cooperative beamforming vector that maximizes the expected achievable rate, which is a linear combination of weighted channel vectors. Finally, we derive the optimal transmission strategy, which is a mixed strategy between the relay selection and cooperative transmission strategies with respect to the trust degrees. Our analysis and numerical results show that the proposed transmission strategies increase the expected achievable rate by exploiting the trust degrees of the relay nodes, along with the channel conditions.

Analyses of Achievable Gains in Half Duplex MIMO Relaying Schemes Using Multiple Relay Nodes

2007 ◽  
Vol E90-B (9) ◽  
pp. 2541-2551 ◽  
Author(s):  
H. SHI ◽  
T. ABE ◽  
T. ASAI ◽  
H. YOSHINO
Keyword(s):  
Relay Nodes ◽  
Half Duplex ◽  
Multiple Relay

scholarly journals Multihop Capability Analysis in Wireless Information and Power Transfer Multirelay Cooperative Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Qilin Wu ◽  
Xianzhong Zhou ◽  
Qian Cao ◽  
Huan Fang
Keyword(s):  
Multihop Wireless Networks ◽  
Cooperative Networks ◽  
Performance Comparison ◽  
Power Transfer ◽  
Analysis Model ◽  
Relay Nodes ◽  
Multihop Wireless ◽  
Capability Analysis ◽  
Multiple Relays ◽  
The Given

We study simultaneous wireless information and power transfer (SWIPT) in multihop wireless cooperative networks, where the multihop capability that denotes the largest number of transmission hops is investigated. By utilizing the broadcast nature of multihop wireless networks, we first propose a cooperative forwarding power (CFP) scheme. In CFP scheme, the multiple relays and receiver have distinctly different tasks. Specifically, multiple relays close to the transmitter harvest power from the transmitter first and then cooperatively forward the power (not the information) towards the receiver. The receiver receives the information (not the power) from the transmitter first, and then it harvests the power from the relays and is taken as the transmitter of the next hop. Furthermore, for performance comparison, we suggest two schemes: cooperative forwarding information and power (CFIP) and direct receiving information and power (DFIP). Also, we construct an analysis model to investigate the multihop capabilities of CFP, CFIP, and DFIP schemes under the given targeted throughput requirement. Finally, simulation results validate the analysis model and show that the multihop capability of CFP is better than CFIP and DFIP, and for improving the multihop capabilities, it is best effective to increase the average number of relay nodes in cooperative set.

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