This  paper  describes  research  on  modeling  and  simulating concurrent communications of distributed wireless sensor networks for  improving  available  network  capacity.  The  workflow  with software tools was proposed that allows producing automatically Occam-Pi  code  to  feature  a  concurrency  model  inspired  by Communicating  Sequential  Processes  (CSP)  paradigm.  Wireless networks  are  presented  based  on  a  graph  abstraction  model  for simulating  the  complex  behaviors  of  systems.  Concurrent communications of distributed sensing networks are handled by the well-known message-passing model used to program parallel and distributed applications. Parallel and distributed algorithms were employed to describe  the local node’s behaviors to build up the networks  and  manage  communications.  Finally,  simulation experiments were carried out on an abstract LoRa wireless network in  order  to  evaluate  and  validate  the  accomplishment  of  the proposed approach for concurrent communications in large-scale distributed sensing networks.