An introduction to signal detection and estimation (2nd ed.)
An introduction to signal detection and estimation (2nd ed.)
Improving amplify-and-forward relay networks: optimal power allocation versus selection
IEEE Transactions on Wireless Communications
IEEE Transactions on Information Theory
Degraded Gaussian multirelay channel: capacity and optimal power allocation
IEEE Transactions on Information Theory
On the capacity of MIMO relay channels
IEEE Transactions on Information Theory
Impact of antenna correlation on the capacity of multiantenna channels
IEEE Transactions on Information Theory
Relay-based deployment concepts for wireless and mobile broadband radio
IEEE Communications Magazine
Wireless relays for broadband access [radio communications series]
IEEE Communications Magazine
A stochastic MIMO radio channel model with experimental validation
IEEE Journal on Selected Areas in Communications
Fading correlations in wireless MIMO communication systems
IEEE Journal on Selected Areas in Communications
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This paper considers power allocation in a spatially correlated dual-hop multiple-input multiple-output (MIMO) relay channel. In a dual-hop MIMO relay channel, it is desirable to balance the capacity of each hop channel by dynamically allocating the transmit power according to the channel condition. In fact, the end-to-end capacity of a dual-hop relay channel can be maximized by means of max-min optimization with constraint on total power. This paper considers the improvement of the end-to-end capacity by allocating the transmit power according to the average channel gain and the spatial correlation between the dual-hop MIMO relay channels. Simulation results show that the proposed scheme provides significant performance improvement over the power allocation based on the average signal-to-noise ratio (SNR).