Ergodic Capacity of the Exponentially Correlated Slotted Amplify and Forward Relay Channel

Provided by: Queensland Treasury Corporation
Topic: Mobility
Format: PDF
In this paper, the authors analyze the performance degradation of slotted amplify-and-forward protocol in wireless environments with high node density where the number of relays grows asymptotically large. Channel gains between source-destination pairs in such networks can no longer be independent. They analyze the degradation of performance in such wireless environments where channel gains are exponentially correlated by looking at the capacity per channel use. Theoretical results for eigen-value distribution and the capacity are derived and compared with the simulation results. Both analytical and simulated results show that the capacity given by the asymptotic mutual information decreases with the network density.

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