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GLOBECOM
2008
IEEE

On Channel Estimation and Capacity for Amplify and Forward Relay Networks

8 years 9 months ago
On Channel Estimation and Capacity for Amplify and Forward Relay Networks
—Relay networks have received considerable attention recently, especially when limited size and power resources impose constraints on the number of antennas within a wireless sensor network. In this paper, we design and analyze a training based linear mean square error (LMMSE) channel estimator for time division multiplex amplify-and-forward (AF) relay networks. For the purpose of performance comparison we consider three distinct cases; In the first scenario, each relay estimates its backward and forward channels, in the second scenario each relay knows its backward and forward channels perfectly and finally in the third scenario relays have no knowledge of channels. Finally, we find a lower bound for the capacity considering the effect of training and estimation error.
Alireza Shahan Behbahani, Ahmed M. Eltawil
Added 29 May 2010
Updated 29 May 2010
Type Conference
Year 2008
Where GLOBECOM
Authors Alireza Shahan Behbahani, Ahmed M. Eltawil
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