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In-network data aggregation in an essential operation to reduce energy consumption in large-scale wireless sensor networks. With data aggregation, however, raw data items are invisible to the base station and thus the authenticity of the aggregated data is hard to guarantee. A compromised sensor node may forge an aggregation value and mislead the base station into trusting a false reading. Due to...
Building a multicast tree in an overlay network is the major problem in application layer multicast. In a selfish overlay network, the end hosts may not be cooperative. They are willing to maximize their own benefits instead of being loyal to the protocol or altruistically contributing to the benefits of the whole overlay network. In this paper, we design a strategyproof mechanism in building a truthful...
Traditional IP multicast suffers from forwarding state scalability problems as the number of concurrent active multicast groups increases. The problem is exacerbated when provisioning QoS since additional information of resource requirement from members must be kept at routers. In this paper, we firstly consider the comparability between various QoS levels and propose a modularized QoS multicasting...
Bluetooth is a promising wireless technology that enables devices to form short-range wireless ad-hoc networks or personal area networks. However, formation of the scatternet, or a Bluetooth network, is one of the challenges that needs to be resolved since their performance depends largely on the scatternet topology used. Further, to improve the performance of the scatternet, the energy capability...
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