Michal Gorawski

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Performance evaluation of protocols and mechanisms in wireless networks require a good representation of client mobility. The number of mobility models has been developed, to emulate the changes of location in time of mobile wireless devices in communication networks, such as e.g. mobile phones, tablets, netbooks, palmtops. Mobility models are used to(More)
Data warehouse systems service larger and larger sets of data. Effective data indexing is not sufficient, because one system node is unable to store such amount of quickly flowing data. More and more common solutions use distribution of an indexing structure among several system nodes. Indexing structures presented in the following paper are based on a grid(More)