Achievable Rates for the Multiple Access Channel with Feedback and   Correlated Sources
  In this paper, we investigate achievable rates on the multiple access channel with feedback and correlated sources (MACFCS). The motivation for studying the MACFCS stems from the fact that in a sensor network, sensors collect and transmit correlated data to a common sink. We derive two achievable rate regions for the three-node MACFCS. 
Lawrence Ong, Mehul Motani