Could NACKs be useful in relay-assisted networks?

In WLAN IEEE 802.11, there is only positive acknowledges. Nevertheless, in a relay-assisted network, a negative acknowledgement might help the relay to decide whether it is in a favorable position to re-send the packet.

IEEE 802.11n Development: History, Process and Technology

Eldad Perahia

Today I re-read this article and I think it is very interesting. I think that CSMA/ECA should be included in upcoming standards.

nc for cellular

has anyone thought about using network coding for intra-cell calls?

Investigating the Validity of IEEE 802.11 MAC Modeling Hypothesis

K.D. Huang, K.R. Duffy, D.Malone and D.J. Leith

I should verify our model for CSMA/ECA to double-check whether we are using the (A3) and (A4) hypothesis or not. In any case, as the authors concede, the violation of hypothesis (A4) does not affect goodput predictions.

On the Shaping Introduced by IEEE 802.11 Nodes in Long-Range Dependent Traffic

David Rincón , David Remondo , and Cristina Cano

If we change CSMA/CA for CSMA/ECA, would the results presented in the paper differ?