This paper studies the effects of desynchronization attacks such as delay and warping on the performance of watermark detection systems. First, we quantify the connection between attack channel estimation accuracy and detection performance. Second, we show how to design watermarks that minimize probability of error of the detector. Evaluation of the optimal likelihood ratio test is often comput...

Recently, lightweight RFID authentication protocol has been investigated due to the awareness of practical requirements on individual privacy, system security and resource limitation of low cost tags. Research community demonstrates major advancements in this interesting research area of designing a robust access control and information retrieval mechanism for RFID system. In 2008, two well-stu...

The suprachiasmatic nucleus (SCN) coordinates via multiple outputs physiological and behavioural circadian rhythms. The SCN is composed of a heterogeneous network of coupled oscillators that entrain to the daily light-dark cycles. Outside the physiological entrainment range, rich locomotor patterns of desynchronized rhythms are observed. Previous studies interpreted these results as the output ...

Synchronous oscillatory dynamics in the beta frequency band is a characteristic feature of neuronal activity of basal ganglia in Parkinson's disease and is hypothesized to be related to the disease's hypokinetic symptoms. This study explores the temporal structure of this synchronization during episodes of oscillatory beta-band activity. Phase synchronization (phase locking) between extracellul...

BACKGROUND AND OBJECTIVE Mirror therapy is a new form of stroke rehabilitation that uses the mirror reflection of the unaffected hand in place of the affected hand to augment movement training. The mechanism of mirror therapy is not known but is thought to involve changes in cerebral organization. We used magnetoencephalography (MEG) to measure changes in cortical activity during mirror trainin...

OBJECTIVE Brain-computer interface technology has been applied to stroke patients to improve their motor function. Event-related desynchronization during motor imagery, which is used as a brain-computer interface trigger, is sometimes difficult to detect in stroke patients. Anodal transcranial direct current stimulation (tDCS) is known to increase event-related desynchronization. This study inv...

Citation: Attuel G, Gerasimova-Chechkina E, Argoul F, Yahia H and Arneodo A (2018) Multifractal Desynchronization of the Cardiac Excitable Cell Network During Atrial Fibrillation. I. Multifractal Analysis of Clinical Data. Front. Physiol. 8:1139. doi: 10.3389/fphys.2017.01139 Multifractal Desynchronization of the Cardiac Excitable Cell Network During Atrial Fibrillation. I. Multifractal Analysi...

-This paper presents the novel concept of desynchronization which deals with deriving an asynchronous circuit from an optimized synchronous circuit by replacing the clock distribution tree by a handshaking network. A new controller for implementing desynchronization is also proposed which achieves more concurrency. This concept is implemented on a MIPS processor and a comparison of the synchron...

People can access and obtain services from smart home devices conveniently through fog-enabled environments. The security privacy-preserving authentication protocol play an important role. However, many proposed protocols have one or more flaws. In particular, almost all the existing for cannot resist gateway compromised attacks. adversary not only know user’s identity but also launch impersona...