Highly dynamic Destination-Sequenced Distance-Vector routing (DSDV) for mobile computers
SIGCOMM '94 Proceedings of the conference on Communications architectures, protocols and applications
Preemptive routing in Ad Hoc networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Capacity of Ad Hoc wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
A rate-adaptive MAC protocol for multi-Hop wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Opportunistic media access for multirate ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Ad hoc QoS on-demand routing (AQOR) in mobile ad hoc networks
Journal of Parallel and Distributed Computing - Special issue on Routing in mobile and wireless ad hoc networks
Routing in multi-radio, multi-hop wireless mesh networks
Proceedings of the 10th annual international conference on Mobile computing and networking
Determining Intra-Flow Contention along Multihop Paths in Wireless Networks
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
QoS-aware routing based on bandwidth estimation for mobile ad hoc networks
IEEE Journal on Selected Areas in Communications
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Due to complicated situations such as node/link interference and traffic load, quality of service support in multi-hop multi-rate ad hoc networks remains a challenging issue. Furthermore, when mobility is present, because of frequent route change, it is even more difficult to maintain high level performance for existing real-time flows that may not tolerate serious performance degradation. In this paper, we focus on the issue of providing sufficient QoS in networks with moderate to high node mobility. We first introduce route available bandwidth (RAB), a major index for prediction of flow performance along a specific path. RAB considers various important factors such as intra-flow interference, effective link bandwidth, and channel busy time. Then, we devise a DSR based admission control scheme where the source node accepts/rejects a flow according to the RAB of the collected route when it receives a route reply packet. To handle mobility, we incorporate an additional metric of route reliability (RR) so that a path with sufficient bandwidth and reliability can be obtained. Results show that with admission control, existing flows experiences around 80---95% average delivery ratio, even for 20 m/s maximum moving speed, which is much better than 30---60% average delivery ratio when admission control is absent.