Abstract
People with portable computers are to be able to retrieve a variety of information at any time and at any location by using wireless systems. Since the bandwidth of wireless communication systems is narrower than that of wired communication systems, however, it is difficult for servers to use wireless systems to send much information to many clients. This paper proposes an information-providing mechanism combining broadcast and on-demand modes of data delivery. The broadcast mode enables a server to support many clients via narrow bandwidth and the on-demand modes enables each client to access different data. An algorithm deciding which data should be broadcasted is presented. It minimizes expected length of waiting time of clients to get needed data from the server. Evaluation results show the effectiveness of this algorithm.
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© 2002 Kluwer Academic Publishers
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Tanabe, M., Hakomori, S., Inoue, U. (2002). Information-providing Mechanism Combining Broadcast and On-demand Modes in Mobile Computing Environments. In: Holtzman, J.M., Zorzi, M. (eds) Advances in Wireless Communications. The International Series in Engineering and Computer Science, vol 435. Springer, Boston, MA. https://doi.org/10.1007/0-306-47041-1_3
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DOI: https://doi.org/10.1007/0-306-47041-1_3
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-7923-8126-6
Online ISBN: 978-0-306-47041-7
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