On the Diversity-Multiplexing Tradeoff of Amplify-and-Forward Half-Duplex Relaying

2010 ◽  
Vol 58 (12) ◽  
pp. 3621-3630 ◽  
Author(s):  
H. Wicaksana ◽  
S. H. Ting ◽  
M. Motani ◽  
Y. L. Guan
Keyword(s):  
Amplify And Forward ◽  
Half Duplex ◽  
Diversity Multiplexing Tradeoff

scholarly journals Outage Performance of Bidirectional Full-Duplex Amplify-and-Forward Relay Network with Transmit Antenna Selection and Maximal Ratio Combining

2018 ◽  
Vol 1 ◽  
pp. 62-69
Author(s):  
R. Rajesh ◽  
P. G. S. Velmurugan ◽  
S. J. Thiruvengadam ◽  
P. S. Mallick
Keyword(s):  
Antenna Selection ◽  
Relay Node ◽  
Maximal Ratio Combining ◽  
Full Duplex ◽  
Relay Network ◽  
Amplify And Forward ◽  
Transmit Antenna Selection ◽  
Outage Performance ◽  
Half Duplex ◽  
Af Relay

In this paper, a bidirectional full-duplex amplify- and-forward (AF) relay network with multiple antennas at source nodes is proposed. Assuming that the channel state information is known at the source nodes, transmit antenna selection and maximal ratio combining (MRC) are employed when source nodes transmit information to the relay node and receive information from the relay node respectively, in order to improve the overall signal-to-interference plus noise ratio (SINR). Analytical expressions are derived for tight upper bound SINR at the relay node and source nodes upon reception. Further, losed form expressions are also derived for end-to-end outage probability of the proposed bidirectional full-duplex AF relay network in the Nakagami-m fading channel environment. Although self-interference at the relay node limits the performance of the full-duplex network, the outage performance of the proposed network is better than that of conventional bidirectional full-duplex and half-duplex AF relay networks, due to the selection diversity gain in TAS and diversity and array gain in MRC.

Information Theoretical Limits on Cooperative Communications

2010 ◽  
pp. 1-28
Author(s):  
Melda Yuksel ◽  
Elza Erkip
Keyword(s):  
Fading Channels ◽  
Cooperative Communications ◽  
Performance Metrics ◽  
Additive White Gaussian Noise ◽  
Information Theoretic ◽  
Half Duplex ◽  
Recent Developments ◽  
Multiple Relays ◽  
Theoretic Foundations ◽  
Diversity Multiplexing Tradeoff

This chapter provides an overview of the information theoretic foundations of cooperative communications. Earlier information theoretic achievements, as well as the more recent developments, are discussed. The analysis accounts for full/half-duplex node, and for multiple relays. Various channel models such as discrete memoryless, additive white Gaussian noise (AWGN), and fading channels are considered. Cooperative communication protocols are investigated using capacity, diversity, and diversity-multiplexing tradeoff (DMT) as performance metrics. Overall, this chapter provides a comprehensive view on the foundations of and the state-of-the-art reached in the theory of cooperative communications.

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