A New Training Protocol for Channel State Estimation in Wireless Relay Networks

Details A New Training Protocol for Channel State Estimation in Wireless Relay Networks A New Training Protocol for Channel State Estimation in Wireless Relay Networks

2008-11-06

arxiv.org/abs/0811.0935v5

Computer Science

Information Theory

This paper has been withdrawn by the author due to technical flaws in SISO section

Scientific paper

The accuracy of channel state information (CSI) is critical for improving the capacity of wireless networks. In this paper, we introduce a training protocol for wireless relay networks that uses channel estimation and feedforwarding methods. The feedforwarding method is the distinctive feature of the proposed protocol. As we show, each relay feedforwards the imperfect CSI to the destination in a way that provides a higher network capacity and a faster transfer of the CSI than the existing protocols. In addition, we show the importance of the effective CSI accuracy on the wireless relay network capacity by comparing networks with the perfect effective CSI, imperfect effective CSI, and noisy imperfect effective CSI available at the destination.

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