Networking

Joint Frequency Offset and Channel Estimation Methods for Two-Way Relay Networks

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Executive Summary

In this paper, the authors study the problem of joint Carrier Frequency Offset (CFO) and channel estimation for Two-Way Relay Network (TWRN) that comprises two source terminals and one relay node. They build up the signal model, from which they identify the CFO and channels at the two source terminals. As the very first attempt to discuss the joint CFO and the channel estimation for TWRN, they consider relay node that purely amplifies and forwards, which is also known as the repeater. The new model is different from the traditional ones in that the unknown CFO is combined with only part of the channel parameters.

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