Performance Evaluation of MAC DCF Scheme in WLAN
نویسندگان
چکیده
Developed as a simple and cost-effective wireless technology for best effort services, IEEE 802.11 has gained popularity at an unprecedented rate. However, due to the lack of built-in Quality of Service (QoS) support, IEEE 802.11 experiences serious challenges in meeting the demands of real-time multimedia services and applications. QoS is a key consideration for wireless networks and implementation of QoS for supporting voice, video, and multimedia services in general bring a number of difficulties that have to be resolved. In particular, because network bandwidth, timely delivery of multimedia data and wireless fading and high bit error rate (BER) in IEEE 802.11 wireless LAN (W-LAN) applications and services is a challenging problems, various researches and trials have been made to enhance the quality of W-LAN application services. In this article we have analysis the performance of MAC DCF under infrastructure and Ad-hoc mode with help of NS2.
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