Generalized Alamouti codes for trading quality of service against data rate in MIMO UMTS
EURASIP Journal on Applied Signal Processing
A Rigorous Proof of MIMO Channel Capacity's Increase with Antenna Number
Wireless Personal Communications: An International Journal
EURASIP Journal on Wireless Communications and Networking - Special issue on synchronization in wireless communications
Distributed LDPC coders in cooperative relay networks
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
The Design of Efficiently-Encodable LDPC Codes for Coded Cooperation in Relay Channel
CMC '10 Proceedings of the 2010 International Conference on Communications and Mobile Computing - Volume 02
Virtual Maximum Ratio Transmission for Downlink OFDMA Relay-based Networks
Wireless Personal Communications: An International Journal
Optimal training design for MIMO OFDM systems in mobile wireless channels
IEEE Transactions on Signal Processing
Coded cooperation in wireless communications: space-time transmission and iterative decoding
IEEE Transactions on Signal Processing
Simplified channel estimation for OFDM systems with multiple transmit antennas
IEEE Transactions on Wireless Communications
Exact symbol error probability of a Cooperative network in a Rayleigh-fading environment
IEEE Transactions on Wireless Communications
Optimal training signals for MIMO OFDM channel estimation
IEEE Transactions on Wireless Communications
Modulation and demodulation for cooperative diversity in wireless systems
IEEE Transactions on Wireless Communications
Robust and Improved Channel Estimation Algorithm for MIMO-OFDM Systems
IEEE Transactions on Wireless Communications
Improving amplify-and-forward relay networks: optimal power allocation versus selection
IEEE Transactions on Wireless Communications
Coherent opportunistic beamforming with partial channel information in multiuser wireless systems
IEEE Transactions on Wireless Communications
Diversity order analysis of the decode-and-forward cooperative networks with relay selection
IEEE Transactions on Wireless Communications - Part 2
LDPC Code Design for Half-Duplex Cooperative Relay
IEEE Transactions on Wireless Communications - Part 2
Space-time block codes from orthogonal designs
IEEE Transactions on Information Theory
Design of capacity-approaching irregular low-density parity-check codes
IEEE Transactions on Information Theory
Efficient encoding of low-density parity-check codes
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Cooperative Strategies and Capacity Theorems for Relay Networks
IEEE Transactions on Information Theory
IEEE Communications Magazine
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Channel estimation for OFDM systems with transmitter diversity in mobile wireless channels
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
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A practical multiuser cooperative transmission scheme denoted as Virtual Maximum Ratio Transmission (VMRT) for multipleinput multiple-output-orthogonal frequency division multiple access (MIMO-OFDMA) relay-based networks is proposed and evaluated in the presence of a realistic channel estimation algorithm and using low-density parity-check (LDPC) codes. It is shown that this scheme is robust against channel estimation errors. It offers diversity and array gain, keeping the complexity low with a multiuser and multiantenna channel estimation algorithm that is simple and efficient. In addition, the combination with LDPC codes provides improved gains; diversity gains larger than 6 dB can be easily obtained with a reduced number of relays. Thus, this scheme can be used to extend coverage or increase system throughput by using simple cooperative OFDMA-based relays.