Diversity-Multiplexing Tradeoff for Frequency Fading Channels with CSIT

2006 ◽  
Author(s):  
M. Haddad ◽  
M. Debbah ◽  
A. Menouni Hayar
Keyword(s):  
Fading Channels ◽  
Diversity Multiplexing Tradeoff

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.

scholarly journals Finite-SNR Diversity-Multiplexing Tradeoff for Cooperative Transmissions with Opportunistic Network Coding

2012 ◽  
Vol 2012 ◽  
pp. 1-14
Author(s):  
Guoyou Li ◽  
Yajian Zhou ◽  
Jingxian Zhou ◽  
Kangfeng Zheng ◽  
Yixian Yang
Keyword(s):  
Network Coding ◽  
Fading Channels ◽  
Degrees Of Freedom ◽  
Relay Node ◽  
Cooperative Transmission ◽  
Direct Transmission ◽  
Opportunistic Network ◽  
Transmission Scheme ◽  
Opportunistic Network Coding ◽  
Diversity Multiplexing Tradeoff

We present a multiuser cooperative transmission scheme with opportunistic network coding (CTONC), which can improve system performance. In contrast to direct transmission and conventional cooperative transmission, the CTONC allows the relay node to decide whether or not to help do cooperation and employ network coding based on the limited feedback from the destinations. It will not help a transmission pair unless its direct transmission fails. This enables CTONC to make efficient use of the degrees of freedom of the channels. We derive and analyze the diversity-multiplexing tradeoff for the CTONC over Rayleigh fading channels at finite signal-to-noise ratios (SNRs). Theoretical analysis and numerical results show that the proposed scheme achieves better performance gain in terms of average mutual information, outage probability, and finite-SNR diversity-multiplexing tradeoff.

Diversity-Multiplexing Tradeoff for Log-Normal Fading Channels

2016 ◽  
Vol 64 (7) ◽  
pp. 3119-3129 ◽  
Author(s):  
Hatef Nouri ◽  
Farid Touati ◽  
Murat Uysal
Keyword(s):  
Fading Channels ◽  
Log Normal ◽  
Diversity Multiplexing Tradeoff
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