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The proliferation of sensor-equipped smartphones has enabled an increasing number of context-aware applications that provide personalized services based on users' contexts. However, most of these applications aggressively collect users sensing data without providing clear statements on the usage and disclosure strategies of such sensitive information, which(More)
Recent years have seen the proliferation in versatile mobile devices and application services that demand different data rates and latencies. Fixed channelization configuration in today's wireless devices fall inefficient in the presence of such dynamic demands. In this regard, fine-grained spectrum management designs have been advocated by the research(More)
With the rapid growth of both information and users, how to effectively improve the quality of network service becomes an urgent problem to be addressed. Load balancing is to overcome this problem in an effective way. At present it is mainly achieved by the load-balancing hardware and software, but there are also many problems, such as unscientific and(More)
A typical scenario for public WLANs is large audience environment where Wi-Fi hotspots serve scores of mobile devices. The performance of those Wi-Fi hotspots is extremely poor in terms of low goodput and severe delay due to heavy contention and MAC inefficiency. After carefully investigating the traffic patterns in public WLANs, we propose(More)
—The surging deployments of Wi-Fi hotspots in public places drive the blossoming of location-based services (LBSs). A recent measurement reveals that a large portion of the reported locations are either forged or superfluous, which raises security issues such as bogus alibis and illegal usage of restricted resources, and leads to some initial investigation(More)
The continuing advances in the storage and transmission abilities of user equipment have made it possible to share videos through device-to-device communications, which may be an efficient way to enhance the capacity of cellular network to provide wireless video services. In adaptive D2D video streaming, user experience is greatly influenced by the quality(More)
The postnatal neurodevelopmental disorder Rett syndrome, caused by mutations in MECP2, produces a diverse array of symptoms, including loss of language, motor, and social skills and the development of hand stereotypies, anxiety, tremor, ataxia, respiratory dysrhythmias, and seizures. Surprisingly, despite the diversity of these features, we have found that(More)
Many postnatal onset neurological disorders such as autism spectrum disorders (ASDs) and intellectual disability are thought to arise largely from disruption of excitatory/inhibitory homeostasis. Although mouse models of Rett syndrome (RTT), a postnatal neurological disorder caused by loss-of-function mutations in MECP2, display impaired excitatory(More)
—The vision of Self-Organizing Networks (SON) has been drawing considerable attention as a major axis for the development of future networks. As an essential functionality in SON, cell outage detection is developed to autonomously detect macrocells or femtocells that are inoperative and unable to provide service. Previous cell outage detection approaches(More)
—In cognitive radio networks (CRNs), collaborative sensing has been considered as an attractive means to improve spectrum sensing performance. However, privacy issues arise when multiple service providers (SPs) collaborate on learning the spectrum availabilities. Specifically, sharing sensing data may enable malicious SPs or secondary users (SUs) to(More)