Yeonwoo Lee

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— In this paper, we propose a power-efficient and QoS (Quality of Service)-aware MAC (Medium Access Control) scheduling algorithm for Bluetooth scatternet. If the inter-piconet scheduler in a bridge node between piconets operates simply by the Round Robin (RR) policy, a number of time slots may be wasted due to the guard time for piconet switching and the(More)
A significant challenge when implementing time synchronization protocols is minimizing timestamp uncertainties. The major problem of time synchronization is not only that this packet delay exists, but also being able to predict the time spent on each can be difficult. This paper aims to reduce these uncertainties by estimating them in the transmitter and(More)
In this paper, we propose a QoS guaranteed and energy-efficient transmission scheme for Wireless Personal Area Networks (WPANs), which operate in conjunction with contention-based access protocols, such as CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance). Energy consumption is one of the most important issues in WPAN systems, because WPAN devices(More)
Calcium-permeable and thermosensitive transient receptor potential (TRP) channels mediate the nociceptive transduction of noxious temperature in Drosophila nociceptors. However, the underlying molecular mechanisms are not completely understood. Here we find that Subdued, a calcium-activated chloride channel of the Drosophila anoctamin family, functions in(More)