Diversity-Multiplexing-Delay Tradeoff in Decode-and-Forward MIMO Relay Network with CC-ARQ

2013 ◽  
Author(s):  
Praveen Pawar ◽  
Aditya Trivedi ◽  
Karm Veer Arya
Keyword(s):  
Relay Network ◽  
Decode And Forward ◽  
Mimo Relay

Performance Analysis of MIMO Relay Network via Propagation Measurement in L-Shaped Corridor Environment

2012 ◽  
Vol E95-B (4) ◽  
pp. 1345-1356 ◽  
Author(s):  
Namzilp LERTWIRAM ◽  
Gia Khanh TRAN ◽  
Keiichi MIZUTANI ◽  
Kei SAKAGUCHI ◽  
Kiyomichi ARAKI
Keyword(s):  
Performance Analysis ◽  
Relay Network ◽  
Mimo Relay ◽  
Propagation Measurement

On Performance of Combining Methods for Three-Node Relay Network

2012 ◽  
Vol 263-266 ◽  
pp. 1160-1164
Author(s):  
Wen Yuan Rao
Keyword(s):  
Relay Network ◽  
Estimation Accuracy ◽  
Diversity Order ◽  
Amplify And Forward ◽  
Decode And Forward ◽  
Channel Quality ◽  
Combining Methods ◽  
Better Than

We study the performance of the three-node relay network. Three combining methods for the Amplify-and-Forward (AF) protocol and the Decode-and-Forward (DF) protocol are compared. Simulations indicate that the AF protocol is better than DF under all these three combining methods. To combine the incoming signals the channel quality should be estimated as accuracy as possible, more estimation accuracy requires more resource. A very simple combining method can obtain the performance comparative with optimal combining methods approximately. At the same time, all three combining methods for both diversity protocols can achieve the maximum diversity order.

Optimizations of a MIMO Relay Network

2008 ◽  
Vol 56 (10) ◽  
pp. 5062-5073 ◽  
Author(s):  
A.S. Behbahani ◽  
R. Merched ◽  
A.M. Eltawil
Keyword(s):  
Relay Network ◽  
Mimo Relay

scholarly journals On Uplink Performance of Multiuser Massive MIMO Relay Network With Limited RF Chains

2020 ◽  
Vol 69 (8) ◽  
pp. 8670-8683
Author(s):  
Jindan Xu ◽  
Yucheng Wang ◽  
Wei Xu ◽  
Shi Jin ◽  
Hong Shen ◽  
...  
Keyword(s):  
Massive Mimo ◽  
Relay Network ◽  
Mimo Relay

scholarly journals Outage-Based Resource Allocation for DF Two-Way Relay Networks with Energy Harvesting

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3946 ◽  
Author(s):  
Chunling Peng ◽  
Fangwei Li ◽  
Huaping Liu ◽  
Guozhong Wang
Keyword(s):  
Resource Allocation ◽  
Energy Harvesting ◽  
Outage Probability ◽  
Relay Network ◽  
Total Power ◽  
Power Splitting ◽  
Decode And Forward ◽  
Resource Allocation Algorithm ◽  
Joint Resource Allocation ◽  
System Outage Probability

A joint resource allocation algorithm to minimize the system outage probability is proposed for a decode-and-forward (DF) two-way relay network with simultaneous wireless information and power transfer (SWIPT) under a total power constraint. In this network, the two sources nodes exchange information with the help of a passive relay, which is assumed to help the two source nodes’ communication without consuming its own energy by exploiting an energy-harvesting protocol, the power splitting (PS) protocol. An optimization framework to jointly optimize power allocation (PA) at the source nodes and PS at the relay is developed. Since the formulated joint optimization problem is non-convex, the solution is developed in two steps. First, the conditionally optimal PS ratio at the relay node for a given PA ratio is explored; then, the closed-form of the optimal PA in the sense of minimizing the system outage probability with instantaneous channel state information (CSI) is derived. Analysis shows that the optimal design depends on the channel condition and the rate threshold. Simulation results are obtained to validate the analytical results. Comparison with three existing schemes shows that the proposed optimized scheme has the minimum system outage probability.

scholarly journals Energy Efficiency of a Decode-and-Forward Multiple-Relay Network with Rate Adaptive LDPC Codes

Sensors ◽  
2019 ◽  
Vol 19 (21) ◽  
pp. 4793 ◽  
Author(s):  
Bushra Bashir Chaoudhry ◽  
Syed Ali Hassan ◽  
Joachim Speidel ◽  
Haejoon Jung
Keyword(s):  
Energy Efficiency ◽  
Channel Coding ◽  
Forward Error Correction ◽  
Ldpc Codes ◽  
Maximum Energy ◽  
Cooperative Transmission ◽  
Relay Network ◽  
Decode And Forward ◽  
Forward Error ◽  
Multiple Relay

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. We investigate a channel coding aided decode-and-forward (DF) relaying network, considering a two-hop multiple-relay network, where the data transmission between the source and the destination is realized with the help of DF relays. Low density parity check (LDPC) codes are adopted as forward error correction (FEC) codes to encode and decode the data both at the source and relays. We consider both fixed and variable code rates depending upon the quality-of-service (QoS) provisioning such as spectral efficiency and maximum energy efficiency. Furthermore, an optimal power allocation scheme is studied for the cooperative system under the energy efficiency constraint. We present the simulation results of our proposed scheme, compared with conventional methods, which show that if decoupled code rates are used on both hops then a trade-off has to be maintained between system complexity, transmission delay, and bit error rate (BER).

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