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This article presents an end-to-end reservation protocol for Quality of Service (QoS) support in the MAC layer of wireless multihop mesh networks. It reserves periodically repeating time slots for QoS-demanding applications, while retaining the Distributed Coordination Function (DCF) for besteffort applications. The key features of the new protocol, called(More)
This paper examines a new mechanism for distributed resource reservation that offers support for applications with QoS requirements in a wireless multi-hop network. This mechanism is based on IEEE 802.11 DCF and includes end-to-end reservations of time slots and distribution of reservation information to mobile nodes unaware of the reservation, piggy-backed(More)
  • E. Carlson
  • Journal of the history of the behavioral sciences
  • 1989
The Enlightenment brought with it a greater scientific interest in and attention to a wider range of human behavior. In 1789, there emerged during the French Revolution a case of what would be today called multiple personality disorder which came under the care of a local physician, Dr. Eberhard Gmelin. Gmelin had only recently become interested in(More)
The purpose of this study was to evaluate a computerized information system, the Professional Activity Study-Medical Audit Program (PAS-MAP), when used by the medical staff of a hospital to conduct medical care evaluation studies. PAS-MAP was compared to a manual system for collecting data not contained on the face sheets of medical records. The results(More)
Supporting applications with high quality-of-service requirements in wireless multihop networks is challenging, mainly due to uncertainties about the packet forwarding times introduced by the data link layer at every node on the path to the destination. For instance, networks based on IEEE 802.11 exhibit such variable forwarding times due to their CSMA(More)
We compare two approaches for Quality of Service support in WLAN-based ad hoc networks. The first approach is to use per-packet priorities, according to the IEEE 802.11e standard. The second approach is to allocate radio resources on the path between source and destination, according to our protocol ’Distributed end-to-end Allocation of time slots for(More)