  Concurrent cooperative transmission for relaying purposes in mobile
communication networks is relevant in current institutional systems with
limited infrastructure, and and may be viewed as a potential range-extension
mechanism for future commercial networks, including vehicular autonomous
networking. The complexity of the overall system has encouraged certain
abstractions at the physical layer which are critically analyzed in the present
paper. We show via analytic stochastic geometry tools that the receiver
structure plays a crucial role in the outage behavior of the relays,
particularly for realistic flooding protocols. This approach aims to help
understand the cross-layer aspects of such networks.
