Elements of information theory
Elements of information theory
Opportunistic media access for multirate ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Information Theory and Reliable Communication
Information Theory and Reliable Communication
Performance analysis and enhancement for the current and future IEEE 802.11 MAC protocols
ACM SIGMOBILE Mobile Computing and Communications Review
Exploiting medium access diversity in rate adaptive wireless LANs
Proceedings of the 10th annual international conference on Mobile computing and networking
A High-Throughput MAC Strategy for Next-Generation WLANs
WOWMOM '05 Proceedings of the Sixth IEEE International Symposium on World of Wireless Mobile and Multimedia Networks
EBA: An Enhancement of the IEEE 802.11 DCF via Distributed Reservation
IEEE Transactions on Mobile Computing
Idle sense: an optimal access method for high throughput and fairness in rate diverse wireless LANs
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
Saturation throughput analysis of error-prone 802.11 wireless networks: Research Articles
Wireless Communications & Mobile Computing - RRM for Next-Generation Wireless and Mobile Communication Systems
A Wireless MAC Protocol Using Implicit Pipelining
IEEE Transactions on Mobile Computing
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
Aggregation with fragment retransmission for very high-speed WLANs
IEEE/ACM Transactions on Networking (TON)
Fragmentation and AES encryption overhead in very high-speed wireless LANs
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
IEEE Transactions on Wireless Communications
Error-Sensitive adaptive frame aggregation in 802.11n WLAN
WWIC'10 Proceedings of the 8th international conference on Wired/Wireless Internet Communications
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We consider the medium access control (MAC) layer for very high-speed Wireless LANs, which is designed to support rich multimedia applications such as highdefinition television. In such networks, the physical (PHY) layer data rate is proposed to exceed 216Mbps. The legacy MAC layer, however, greatly restricts the performance improvement due to its overhead. It has been shown that MAC utilizes less than 20% of the transportation ability provided by the PHY layer. To mitigate this inefficiency, we propose an Aggregation with Fragment Retransmission (AFR) scheme, which supports transmissions of very large frames and partial retransmissions in the case of errors. Aggregation allows for increased performance despite pertransmission overhead while partial retransmission alleviates the risk of losing the entire frame. Extensive simulations show that AFR fundamentally outperforms the legacy MAC protocol. It is particularly effective for applications with high data rates and large packet sizes such as HDTV and high-rate UDP traffic. For applications with very low data rates and small packet sizes such as Voice over IP, AFR performs slightly better.