Optimal power allocation for relayed transmissions over Rayleigh-fading channels
IEEE Transactions on Wireless Communications
Decode-and-Forward Cooperative Diversity with Power Allocation in Wireless Networks
IEEE Transactions on Wireless Communications
Opportunistic cooperation by dynamic resource allocation
IEEE Transactions on Wireless Communications
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
A simple Cooperative diversity method based on network path selection
IEEE Journal on Selected Areas in Communications
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In this paper, we investigate resource allocation for decode-and-forward (DF) opportunistic cooperative networks, where the availability of the direct link between the source and the destination has been taken into consideration. In addition to separate power allocation and location optimization, we also consider joint resource allocation to minimize the outage probability. Under Rayleigh fading channels, the closed-form solution is derived for both separate and joint resource optimizations. Numerical results show that the proposed optimized systems outperform the unoptimized ones, and the minimum outage probability can be achieved by joint power-location optimization.