# A Double-station Access Protocol for Optical Wireless Scattering Communication Networks

## TL;DR

This paper introduces a novel double-station access protocol for optical wireless scattering networks that reduces collisions and improves throughput and delay performance through a new backoff mechanism and optimized parameters.

## Contribution

The paper presents a new double-station access protocol with a multiple backoff mechanism and an extended Markov model for better performance analysis in optical wireless scattering networks.

## Key findings

- Higher throughput compared to baseline protocols
- Lower transmission delay demonstrated through simulations
- Effective collision probability reduction

## Abstract

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.