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We address the optimization issue of the outage probability in Rician block fading channels with N transmit antennas and 1 receive antenna. It is already known that the eigenvectors of the covariance matrix of the transmit signal that minimizes the outage probability are the normalized mean vector of the Rician channel and N-1 orthonormal vectors belonging to the space orthogonal to the range of the...
In the context of cooperative wireless networks that convey data on slow fading channels, outage probability Po is the relevant performance index from the point of view of information theory. Derivation and minimization of this probability with respect to the relaying protocol parameters is of central importance. However, it is often hard to derive its expression, let alone to find its exact minimum...
In this paper, we propose a novel half duplex relaying protocol which belongs to the class of hybrid decode and forward schemes, and we study its performance in the context of communications over slow fading channels. Our protocol is based on a Decode or Quantize and Forward (DoQF) approach. In slow fading contexts, the outage probability Po is of central importance. As the exact evaluation of the...
In the context of wireless relay networks operating on slow fading channels, the outage probability optimization is of central importance. It is often hard to give a closed form expression of the outage probability Po for all possible values of the Signal to Noise Ratio (SNR). On the other hand, it is possible to analyze the behaviour of Po in the asymptotic regime where the SNR rho converges to infinity...
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