Results 241 to 250 of about 19,117 (286)

Decode-and-forward strategies for bidirectional relaying

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
We consider a three-node network, where a relay node establishes a bidirectional communication between two nodes using a two-phase decode-and-forward protocol. In the first phase the two nodes transmit their messages to the relay node which decodes them.
Rafael F. Wyrembelski, Tobias J. Oechtering, Holger Boche   +2 more
openaire   +3 more sources

Some of the next articles are maybe not open access.

Related searches:

Decode‐and‐forward with partial relay selection

International Journal of Communication Systems, 2010
AbstractExact expressions for outage probability and symbol error rate are presented for a decode‐and‐forward cooperative network with partial relay selection. An independent but not identically distributed Nakagami‐m fading environment is considered. Numerical and simulated results show the validity of the analytical results.
exaly   +2 more sources

Error bounds for decode-and-forward relaying

2010 European Wireless Conference (EW), 2010
We analyze and compare the maximum-likelihood (ML) decoder and the maximum a-posteriori (MAP) decoder for coding over a decode-and-forward relay network with orthogonal channels. Using a specific model for the errors introduced by the relay, we derive an optimal MAP decoder that operates on a super-trellis and estimates jointly the transmitted codeword
Graell I Amat, Alexandre, Land, Ingmar, Rasmussen, Lars K.   +2 more
core   +5 more sources

Adaptive Modulation for Opportunistic Decode-and-Forward Relaying

IEEE Transactions on Wireless Communications, 2011
Orthogonal relay based cooperative communication enjoys distributed spatial diversity gain at the price of spectral efficiency. This work aims at improving the spectral efficiency for orthogonal opportunistic decode-and-forward (DF) relaying through employment of novel adaptive modulation scheme.
Yi Ma 0002, Rahim Tafazolli, Yuanyuan Zhang 0004, Chuyi Qian   +3 more
openaire   +5 more sources

Distributed Decode and Forward Beamforming

37th Annual IEEE Conference on Local Computer Networks, 2012
Distributed transmit beamforming is a wireless communication technique in which multiple independent antennas transmit a common message while controlling their transmitted carrier phases to constructively interfere the message at a destination. Depending on the transmission goals and choice of network parameters, certain noteworthy benefits arise from ...
Chris Walsh, Douglas Hakkarinen, Tracy Camp   +2 more
openaire   +1 more source

Dynamic Decode and Forward with Network Coding

2012 IEEE 75th Vehicular Technology Conference (VTC Spring), 2012
This paper is divided into two parts. In the first part, we analyze outage probability of dynamic decode and forward (DDF) with network coding (NC) and compare outage probability with using NC and without using NC. In the second part, we use MATLAB programming language to simulate our system model.
Wei-Cheng Liu, Yu-Neng Chen
openaire   +2 more sources

A New Incomplete Decode-and-Forward Protocol

2008 IEEE Wireless Communications and Networking Conference, 2008
In this work, we explore the introduction of distributed space-time codes in decode-and-forward (DF) protocols. We propose a new Incomplete DF protocol, based on a partial decoding at the relays. This strategy allows the new protocol to bring both full diversity and full symbol rate.
Charlotte Hucher, Ghaya Rekaya-Ben Othman, Ahmed Saadani   +2 more
openaire   +1 more source

Decode‐and‐forward with full‐duplex relaying

International Journal of Communication Systems, 2011
SUMMARYThis paper addresses the full‐duplex relaying. Some expressions for outage and average capacity of a two‐hop cooperative system with a full‐duplex relay are derived under an independent but not identically distributed Rayleigh fading environment. Using these expressions, we provide the performance analysis without Monte Carlo simulations.
Xianyi Rui, Jia Hou, Liulei Zhou
openaire   +1 more source

Cooperative Fading Regions for Decode and Forward Relaying

IEEE Transactions on Information Theory, 2008
Cooperative transmission protocols over fading channels are based on a number of relaying nodes to form virtual multi-antenna transmissions. Diversity provided by these techniques has been widely analyzed for the Rayleigh fading case. However, short range or fixed wireless communications often experience propagation environments where the fading ...
SAVAZZI, STEFANO, SPAGNOLINI, UMBERTO
openaire   +3 more sources

Decode-and-Forward Cooperative Networks with Relay Selection

2007 IEEE 66th Vehicular Technology Conference, 2007
In this paper, we focus on the decode-and-forward (DF) cooperative networks with relay selection. Many detection schemes have been proposed for the DF; but it has been shown that the cooperative maximum ratio combining (C-MRC) can achieve almost the same performance as the optimum maximum likelihood detector and has a much lower complexity.
Zhihang Yi, Il-Min Kim 0001
openaire   +1 more source