Elements of information theory
Elements of information theory
Capacity of fading channels with channel side information
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Capacity bounds and power allocation for wireless relay channels
IEEE Transactions on Information Theory
On the achievable diversity-multiplexing tradeoff in half-duplex cooperative channels
IEEE Transactions on Information Theory
Coding Strategies for Multiple-Access Channels With Feedback and Correlated Sources
IEEE Transactions on Information Theory
Fading relay channels: performance limits and space-time signal design
IEEE Journal on Selected Areas in Communications
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A new amplify-and-forward (AAF) strategy is proposed for user cooperation channels. Differing from the previously reported ones in which users either send independent signals, i.e., Azarian's AAF, or do not directly send information to the base station, i.e., Laneman's AAF, the proposed AAF strategy allows users to send signals that are correlated with the previously transmitted signals. The achievable rate region is presented. Numerical results show that the proposed AAF outperforms the traditional AAF, and can provide a larger achievable rate region than the full duplex decode and forward (DAF) relaying strategy and the full duplex estimate and forward (EAF) relaying strategy under certain conditions.