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 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. 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 we will use OPNET to evaluate the performance of RTS/CTS mechanism to improve performance in wireless environment with Hidden Nodes.

[1]  Andrzej Duda,et al.  Idle sense: an optimal access method for high throughput and fairness in rate diverse wireless LANs , 2005, SIGCOMM '05.

[2]  Bernhard Walke,et al.  IEEE 802.11 Wireless Local Area Networks , 2006 .

[3]  Theodore Antonakopoulos,et al.  CSMA/CA performance under high traffic conditions: throughput and delay analysis , 2002, Comput. Commun..

[4]  Saleem Ahmed,et al.  Quality of service (QoS) of voice over MAC protocol 802.11 using ns-2 , 2008, CommunicabilityMS '08.

[5]  Hong Liu,et al.  Adaptive Medium Access Control for VoIP Services in IEEE 802.11 WLANs , 2008, 2008 4th IEEE International Conference on Circuits and Systems for Communications.

[6]  Haitao Wu,et al.  IEEE 802.11 Distributed Coordination Function: Enhancement and analysis , 2008, Journal of Computer Science and Technology.

[7]  Zaher Dawy,et al.  Adaptive approach for QoS support in IEEE 802.11e wireless LAN , 2005, WiMob'2005), IEEE International Conference on Wireless And Mobile Computing, Networking And Communications, 2005..

[8]  Thierry Turletti,et al.  Performance analysis of the IEEE 802.11 MAC and physical layer protocol , 2005, Sixth IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks.