Eliminating Channel Feedback in Next-Generation Cellular Networks

@article{Vasisht2016EliminatingCF,
  title={Eliminating Channel Feedback in Next-Generation Cellular Networks},
  author={Deepak Vasisht and Swarun Kumar and Hariharan Rahul and Dina Katabi},
  journal={Proceedings of the 2016 ACM SIGCOMM Conference},
  year={2016}
}
This paper focuses on a simple, yet fundamental question: ``Can a node infer the wireless channels on one frequency band by observing the channels on a different frequency band?'' This question arises in cellular networks, where the uplink and the downlink operate on different frequencies. Addressing this question is critical for the deployment of key 5G solutions such as massive MIMO, multi-user MIMO, and distributed MIMO, which require channel state information. We introduce R2-F2, a system… 

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