RTS/CTS Mechanism of MAC Layer IEEE 802.11 WLAN in Presence of Hidden Nodes
As demand for deployment and usage is increased in WLAN (Wireless Local Area Network) environment, achieving satisfactory throughput is one of the challenging issues. Initially as WLAN environment is data centric, the best effort delivery based protocol serve the purpose up to certain extent. With multimedia traffic protocol fails to deliver required traffic. The requirement of satisfactory network performance is delivery of QoS (Quality-of-Service). The QoS demand controlled jitter and delay, dedicated bandwidth etc. This triggers various approaches of modifying existing protocol to achieve acceptable throughput to satisfy user requirement. In this paper, the authors will use OPNET to evaluate the performance of RTS/CTS (Request To Send/Clear To Send) mechanism to improve performance in wireless environment with hidden Nodes.