Strategies to Enhance Data Availability in Wireless Ad-Hoc Networks
Date Issued
2005
Date
2005
Author(s)
Hung, Yi-Hui
DOI
en-US
Abstract
Wireless ad-hoc networks are drawing significant attention because of the various potential applications in civilian and military environments. The inherent characteristics of these networks, e.g., lack of physical infrastructure and unreliable communication links, however, pose many challenges. A prime goal is to design data dissemination protocols that are resilient to abrupt malfunction of links and nodes. In Addition, data availability appears an attractive issue in peer-to-peer (P2P) overlaying networks; in fact, tremendous studies in application-level P2P data retrieval have been presented.
In this thesis, we illustrate the intractability of several fundamental problems related to peer-to-peer data access in wireless ad-hoc networks, even under a rather simplified scenario. We then design a method used for localized path repair, which could improve the overall data accessibility; moreover, our approach is performed in a decentralized manner and relays on local knowledge of each node due to the ad-hoc nature. Finally, we do several simulation and analysis to acquire more complete understanding to the characteristics of different classes of networks: correlated random networks, scale-free networks and wireless ad-hoc networks.
Subjects
資料可獲取度
Data Availability
Ad-Hoc Networks
Type
thesis
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