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In this study, the authors propose novel cooperative spatial modulation (SM) systems with two main relaying techniques [amplify-and-forward (AF) and decode-and-forward (DF)], where all nodes have multiple transmit and/or receive antennas. Most of the studies in the literature of cooperative SM systems, which combine the advantages of cooperative communications and SM systems, consider only the space...
Full rate Balanced Space-Time Block Coding (BSTBC) was previously proposed which achieves full diversity for arbitrary number of transmit antennas when one or more feedback bits are transmitted via feedback channel. Extended Balanced Space-Time Block Coding (EBSTBC) provides an improved coding gain with respect to the BSTBC. However, no analytical results concerning EBSTBC have been provided. In this...
Code selection and transmit antenna selection are widely used in limited feedback wireless systems. When one of the antenna channel gains is much higher than the other antenna channel gains; using antenna selection method increases received SNR at the receiver. However, when antenna channel gains are close to each other; using code selection method increases the received SNR at the receiver. In this...
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