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In this work, bit error rate analysis of amplify-and-forward cooperative spatial modulation (SM) systems with multiple antennas at relay and destination is investigated. Most of the studies in the literature of cooperative SM systems deal with the space shift keying (SSK), which is a special case of SM, and consider the single receive antenna at relay and destination. As it is known, the error performance...
This paper considers a two-way relay network in which two source nodes exchange messages during two time slots with the help of a half-duplex amplify-and-forward relay node. Closed form expressions of source and relay node powers are obtained by solving an optimization problem which aims to minimize system total power by constraining source nodes' received signal-to-noise ratios (SNR), thus satisfying...
In this paper, antenna selection both at the transmitter and the receiver is proposed for space-time coded (STC) orthogonal frequency division multiplexing (OFDM) systems. Antennas for all-subcarriers or per-subcarrier are selected to maximize the signal to noise ratio (SNR) at the receiver which knows the channel state information perfectly and the transmitter only knows the indices of the selected...
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