Chih-Kuang Lin

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There are performance deficiencies that hamper the deployment of Wireless Sensor Networks (WSNs) in critical monitoring applications. Such applications are characterized by considerable network load generated as a result of sensing some characteristics of the monitored system. Excessive packet collisions lead to packet losses and retransmissions, resulting(More)
In this paper, we introduce novel probabilistic transmission protocols for data intensive wireless sensor networks. The protocols combine a randomized transmission scheme with scheduling based on heuristics to alleviate network performance degradation due to excessive collisions and retransmissions. In particular, by utilizing local information about sensor(More)
There are performance deficiencies that hamper the deployment of Wireless Sensor Networks (WSNs) in critical monitoring applications. Such applications are characterized by considerable network load generated as a result of sensing some characteristic(s) of the monitored system. Excessive packet collisions lead to packet losses and retransmissions,(More)
We introduce a distributed grid-based scheduling access scheme that mitigates high data loss in data intensive sensor networks. Our approach alleviates transmission collisions by applying virtual grids and adopting Latin Squares Characteristic to time slot assignments. We demonstrate that our technique efficiently handles sensor mobility with acceptable(More)
Renal disease is one of the top 10 leading causes of death, and the incidence of end-stage renal disease in Taiwan is the highest in the world. Many dietitians consider the diet of plant origin consumed by vegans to be 'lighter' and 'more healthful' than the diet of both plant and animal origin consumed by omnivores. Dietary protein has significant effects(More)
BACKGROUND/PURPOSE Urinary tract infection (UTI) is the most common type of infectious complication among kidney transplant patients. However, the antibiotic susceptibility of causative microorganisms and risk factors for concomitant bacteremia and recurrent infection are rarely discussed. METHODS This was a retrospective cohort review of kidney(More)
Using cross-sectional analyses of a nationally representative community sample (n=1260), we found that in people with diabetes, depression was associated with lower rates of reducing or quitting smoking and alcohol, less exercise, less regular lifestyle, but more health care utilization and a higher rate of foot care.
We propose an enhanced IEEE 802.15.4 gateway for use in a hierarchical network architecture. We perform a system comparison between it and a gateway using a normal sensor mote. This comparison includes a PHY and MAC simulation benefiting from ray trace propagation modeling of a large office building. The proposed enhanced gateway offers a 21.2 dB(More)