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Examining Impact of Sequential Access for Nearest Neighbor Search in Wireless Data Broadcast

Myong-Soo LEE, SangKeun LEE

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Summary :

It is observed, surprisingly, that existing nearest neighbor search methods in wireless data broadcast may not work effectively on mobile clients with very limited memory space. To resolve this problem, a novel method for nearest neighbor search is introduced in the context of a representative of indexes, the grid-partition index, in wireless data broadcast. In the proposed scheme, a mobile client performs the nearest neighbor search by making a sequential access to index packets according to their broadcast order over a wireless channel. The performance evaluation demonstrates that our approach substantially outperforms limited memory versions of existing methods in terms of access time, while retaining a good energy conservation.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.9 pp.2964-2971
Publication Date
2008/09/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.9.2964
Type of Manuscript
PAPER
Category
Energy in Electronics Communications

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