Performance Analysis of Repetition-Coding and Space-Time-Block-Coding as Transmitter Diversity Schemes for Indoor Optical Wireless Communications

Transmitter Diversity and Coding Schemes Transmitter Diversity and Coding Schemes

We analyze wireless communication systems employing multiple-transmit multiplereceive antennas in this thesis. Space-time codes have been proposed in the literature as an e cient means of coding over multiple transmit antennas. In particular, the rank and the determinant of code di erence matrices have been shown to be important in the design of space time codes in quasi-static fading channels....

Space-time block coding for wireless communications: performance results

We document the performance of space–time block codes [13], [14], which provide a new paradigm for transmission over Rayleigh fading channels using multiple transmit antennas. Data is encoded using a space–time block code, and the encoded data is split into n streams which are simultaneously transmitted using n transmit antennas. The received signal at each receive antenna is a linear superposi...

Extended balanced space-time block coding for wireless communications

Diversity techniques are very effective tools to increase signal reception quality in Rayleigh fading channels. A well-known method to increase diversity in multi-input multi-output (MIMO) communication is transmit antenna selection (TAS). However, TAS is very sensitive to feedback errors. One of the alternative techniques to TAS is balanced space-time block coding (BSTBC) which guarantees full...

Combined Beamforming and Space-Time Block Coding for High Speed Wireless Indoor Communications

The combination of a digital beamforming technique with space-time block coding in an indoor wireless environment is the purpose of this paper. Uplink transmission is achieved by an omnidirectional mobile antenna, with signals arriving at the base station having relatively wide angular spread. The spatial channel response, an estimate of the channel angular gain pattern, is obtained by using an...

Space-time coding for broadband wireless communications