User cooperation is a spatial diversity technique where multiple terminals form a virtual antenna array to combat fading. We incorporate source coding into the cooperation scenario and analyze cooperation protocols with respect to the average distortion they achieve. We first compare the amplify-and-forward (AF) protocol to direct transmission (DT) and show that it does not increase the performance in the average distortion sense. Then we propose two new cooperation protocols which achieve better performance by increasing the spectral efficiency while still providing diversity, yet maintaining the simple nature of the previous protocols.
Joint source-channel cooperation: Diversity versus spectral efficiency / Gunduz, D.; Erkip, E.. - (2004), p. 392. (Intervento presentato al convegno Proceedings - 2004 IEEE International Symposium on Information Theory tenutosi a Chicago, IL, usa nel 2004).
Joint source-channel cooperation: Diversity versus spectral efficiency
D. Gunduz;
2004
Abstract
User cooperation is a spatial diversity technique where multiple terminals form a virtual antenna array to combat fading. We incorporate source coding into the cooperation scenario and analyze cooperation protocols with respect to the average distortion they achieve. We first compare the amplify-and-forward (AF) protocol to direct transmission (DT) and show that it does not increase the performance in the average distortion sense. Then we propose two new cooperation protocols which achieve better performance by increasing the spectral efficiency while still providing diversity, yet maintaining the simple nature of the previous protocols.
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