Andrew Coyle

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With wireless networking becoming more prevalent, the capacity and power efficiency of these networks is of concern to both users and network designers. Wireless network capacity is difficult to define, with current research providing upper bounds and throughput results for given traffic profiles. However, these measures are not suitable as optimisation(More)
UQ? is an evolving generic language-based environment for manipulation of structured documents. The environment is intended to capture both syntactic and relational structure within and between documents and to support user interaction via both textual and diagrammatic views. This paper illustrates the innovative features of the environment description(More)
Carrier Sense Multiple Access with Collision avoidance (CSMA/CA) is a well known and distributed Medium Access Control (MAC) protocol that enables wireless stations to communicate with one another using a single medium. In this paper an analysis of the times between data transmission in this protocol has been performed and results obtained. Whilst neither(More)
In this paper we show how the network routing protocol B.A.T.M.A.N. can be augmented by a simple hysteresis mechanism called Batrytis in order to provide a more stable routing table with no decrease in performance. This leads to an improved operating environment for various networked applications. We conduct various indoor and outdoor experiments showing(More)
This paper shows that although simultaneous transmissions on the same frequency can cause interference to one another, they may still benefit network capacity if adequate separation conditions between nodes are met. We define this separation and show that it decreases as the number of simultaneous transmissions increases. We further show, through an example(More)
Reverse engineering of the Internet is a valuable activity. Apart from providing scientific insight, the resulting datasets are invaluable in providing realistic network scenarios for other researchers. The Rocketfuel project attempted this process, but it is surprising how little effort has been made to validate its results. This paper concentrates on(More)