A capacity analysis for the IEEE 802.11 MAC protocol
Wireless Networks
Performance Modeling of IEEE 802.11 DCF using Equilibrium Point Analysis
AINA '06 Proceedings of the 20th International Conference on Advanced Information Networking and Applications - Volume 01
Evaluating video streaming over UWB wireless networks
Proceedings of the 4th ACM workshop on Wireless multimedia networking and performance modeling
A hybrid reservation/contention-based MAC for video streaming over wireless networks
IEEE Journal on Selected Areas in Communications
Towards an efficient reservation algorithm for distributed reservation protocols
INFOCOM'10 Proceedings of the 29th conference on Information communications
Performance analysis of priority schemes for IEEE 802.11 and IEEE 802.11e wireless LANs
IEEE Transactions on Wireless Communications
IEEE Transactions on Multimedia
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
Cross-Layer Optimized Video Streaming Over Wireless Multihop Mesh Networks
IEEE Journal on Selected Areas in Communications
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Video streaming over wireless links is a challenging issue due to the stringent Quality-of-Service (QoS) requirements of video traffic, the limited wireless channel bandwidth and the broadcast nature of wireless medium. As contention-based or reservation-based (i.e., contention-free) medium access control (MAC) protocols in existing wireless link-layer standards cannot efficiently support multimedia applications such as video streaming, a hybrid approach has been proposed, which uses both contention and reservation-based channel access mechanisms to transmit packets for each video source. Using this content-aware resource management approach, each video source reserves well below its peak data rate, and uses contention-based media access to transmit the remainder of the packets. In this paper, we first propose two conflict avoidance strategies and two buffering architectures for video streaming over ad hoc networks. Considering the interactions of reservation and contention, we develop the analytical model for the saturated traffic case and then extend it to derive tight performance bounds for the unsaturated case. Using the MAC protocols specified in the WiMedia ECMA-368 standard as an example, extensive simulations have been conducted to validate the analysis. Real video traces have been used to examine the video streaming performance. The analytical and simulation results demonstrate the effectiveness and efficiency of the hybrid resource management approach, and also reveal the impact of the conflict avoidance strategy and buffering design on the video performance.