A capacity analysis for the IEEE 802.11 MAC protocol
Wireless Networks
A survey of QoS enhancements for IEEE 802.11 wireless LAN: Research Articles
Wireless Communications & Mobile Computing
A differentiated service model for enhanced distributed channel access (EDCA) of IEEE 802.11e WLANs
Mobile Networks and Applications
Performance Analysis on Coexistence of EDCA and Legacy DCF Stations in IEEE 802.11 Wireless LANs
IEEE Transactions on Wireless Communications
EDCA/CA: Enhancement of IEEE 802.11e EDCA by Contention Adaption for Energy Efficiency
IEEE Transactions on Wireless Communications
A novel contention-based MAC protocol with channel reservation for wireless LANs
IEEE Transactions on Wireless Communications
Contention window optimization for ieee 802.11 DCF access control
IEEE Transactions on Wireless Communications - Part 1
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
Performance analysis of ad hoc wireless LANs for real-time traffic
IEEE Journal on Selected Areas in Communications
Performance analysis and enhancements for IEEE 802.11e wireless networks
IEEE Network: The Magazine of Global Internetworking
Hi-index | 0.00 |
The most significant issue in 802.11 contention based networks is to prevent collisions and to ensure connection quality. Researchers have shown an increased interest in collision aware back-off algorithms. However, collision aware back-off algorithms are still failed to ensure strict priority for the high priority traffic. Especially in the heavy loading network, a large number of unsuccessful collisions of low priority traffic are the leading cause of the performance degradation of high priority traffic. Our scheme aims to share the transmission channel efficiently and to provide the strict priority contention scheme. Our approach is derived from the Enhanced Distributed Channel Access (EDCA) induced in the IEEE 802.11e standard. Relative priorities adjust the average size of the CW of each traffic class according to both applications requirements and network conditions. We demonstrate the effectiveness of our solution by comparing with existing approaches through extensive simulations. Results show that our scheme improves the throughput of higher priority traffic as well when traffic load is heavy. Furthermore, our scheme is simple and easy to implement.