  We propose a double-station access protocol (DS-CSMA) with multiple backoff
mechanism for optical wireless scattering communication networks (OWSCN). %,
where two stations can transmit data to single destination simultaneously.can
avoid the frames colliding with each other. Furthermore, we extend existing
Bianchi Markov model into state transmission model to analyze the collision
probability, throughput and average delay. For the application of protocol, we
propose to optimize the initial contention window and indicator matrix to
maximize throughput. Both numerical and simulation results imply that the
proposed protocol can achieve higher throughput and lower transmission delay
compared with state-of-art baseline.
