On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Wireless Personal Communications: An International Journal
Space-time block-coded OFDMA with linear precoding for multirateservices
IEEE Transactions on Signal Processing
IEEE Transactions on Information Theory
High-rate codes that are linear in space and time
IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Array gain and capacity for known random channels with multiple element arrays at both ends
IEEE Journal on Selected Areas in Communications
A transmitter diversity scheme for wideband CDMA systems based on space-time spreading
IEEE Journal on Selected Areas in Communications
EURASIP Journal on Applied Signal Processing
Distributed GABBA space-time codes in amplify-and-forward relay networks
IEEE Transactions on Wireless Communications
One bit feedback for quasi-orthogonal space-time block codes based on circulant matrix
IEEE Transactions on Wireless Communications
New PAPR-preserving mapping methods for single-carrier FDMA with space-frequency block codes
IEEE Transactions on Wireless Communications
On optimal quasi-orthogonal space-time block codes with minimum decoding complexity
IEEE Transactions on Information Theory
Effects of channel estimation on multiuser virtual MIMO-OFDMA relay-based networks
EURASIP Journal on Wireless Communications and Networking
Virtual Maximum Ratio Transmission for Downlink OFDMA Relay-based Networks
Wireless Personal Communications: An International Journal
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New space-time block coding schemes for multiple transmit and receive antennas are proposed. First, the well-known Alamouti scheme is extended to NT = 2m transmit antennas achieving high transmit diversity. Many receiver details are worked out for four and eight transmit antennas. Further, solutions for arbitrary, even numbers (NT = 2k) of transmit antennas are presented achieving decoding advantages due to orthogonalization properties while preserving high diversity. In a final step, such extended Alamouti and BLAST schemes are combined, offering a continuous trade-off between quality of service (QoS) and data rate. Due to the simplicity of the coding schemes, they are very well suited to operate under UMTS with only very moderate modifications in the existing standard. The number of supported antennas at transmitter alone is a sufficient knowledge to select the most appropriate scheme. While the proposed schemes are motivated by utilization in UMTS, they are not restricted to this standard.