GloMoSim: a library for parallel simulation of large-scale wireless networks
PADS '98 Proceedings of the twelfth workshop on Parallel and distributed simulation
Ad-hoc On-Demand Distance Vector Routing
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
Contention-Aware Admission Control for Ad Hoc Networks
IEEE Transactions on Mobile Computing
Multi-path Admission Control for Mobile Ad hoc Networks
MOBIQUITOUS '05 Proceedings of the The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services
Mobile Networks and Applications - Special issue: Recent advances in wireless networking
Admission control and bandwidth reservation in multi-hop ad hoc networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Complexity and design of QoS routing algorithms in wireless mesh networks
Computer Communications
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In this paper, we propose a new admission control method for IEEE 802.11 ad hoc networks, called Low-cost and Accurate Admission control (LAAC). The proposed method has two variants: LAAC-Power and LAAC-CS. LAAC-Power estimates channel bandwidth availability through high power transmissions and LAAC-CS through passive monitoring of the channel. Due to the shared nature of the wireless medium, contention occurs among the nodes along a multi-hop path, which leads to intra-flow contention. LAAC accurately estimates the intra-flow contention. In addition, an analytical study demonstrates that LAAC achieves optimal results in terms of overhead and delay compared to the existing intra-flow contention-based admission control methods. LAAC also utilizes two criteria for accepting flows: one during the route request phase and the other during the route reply phase, which helps to reduce message overhead and avoid flooding route requests in hot spots. Simulation results show that LAAC-CS outperforms LAAC-Power in terms of packet delivery ratio, throughput, message overhead, and energy consumption.