On eigenvalue and capacity distributions of cooperative multi-keyhole propagation channels

In this contribution, we study the cascaded multi-keyhole channels for cooperative wireless communications through presenting the corresponding channel model. The cascaded Wishart distribution is adopted to investigate the distribution of the eigenvalues of multi-keyhole MIMO channel matrix as well as the capacity of the wireless systems over such channels. An approximation method is presented when estimating the distribution of the largest eigenvalues of channel matrix. The fitness between analytical derivations and simulations validates the proposed models and analysis methods, which provide an important reference for cooperative diversity wireless communications.

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