Space-Time Network Coding With Optimal Node Selection for Amplify-and-Forward Cooperative Networks

In a wireless network with multiple Amplify-and-Forward (AF) nodes, the many-to-many cooperative communication is achieved through the novel concept of Space-Time Network Coding with Optimal Node Selection (STNC-ONS). The communication under the STNC-ONS scheme is split into two phases: the Broadcasting Phase (BP) in which each node in its allocated time-slot broadcasts its data symbol to all the other nodes in the network, and the Cooperation Phase (CP) in which the optimal node corresponding to each desired data symbol is selected for relaying it to the destination node in its own time-slot. The optimal node selection is based on the maximum harmonic mean value of the source, intermediate, and destination nodes' scaled instantaneous channel gains.

Provided by: Virginia Tech Topic: Mobility Date Added: Jun 2011 Format: PDF

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