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This paper is concerned with globally asymptotical synchronization of fractional-order memristor-based neural networks (FMNNs) with multiple time-varying delays. Based on the definition of memristors, a more practical model of FMNNs with multiple time-varying delays is constructed from the integerorder counterparts. FMNNs are represented by fractional-order differential equations with discontinuous...
In this paper, the problem of stability for complex-valued neural networks involving both discrete and distributed delays is considered. Assuming that the activation function can be separated into its real and imaginary part, a sufficient condition is proposed for the asymptotical stability of the addressed neural networks by employing some analysis techniques. Finally, a numerical example is presented...
Future fifth generation (5G) wireless networks will be challenged by the huge amount of mobile data traffic, especially from enormous Machine Type Communication(MTC) devices, so in this paper we proposed Aggregation Coding Multiple Access(ACMA) for MTC downlink transmissions, which exploits the inherent correlation among aggregated users in spatial domain to improve the spectrum efficiency. By assuming...
For data centers with limited power supply, restricting the servers' power budget (i.e., The maximal power provided to servers) is an efficient approach to increase the server density (the server quantity per rack), which can effectively improve the cost-effectiveness of the data centers. However, this approach may also affect the performance of applications in servers. Hence, the prerequisite of...
System testing and invariant detection is usually conducted from the user interface perspective when the goal is to evaluate the behavior of an application as a whole. A large number of tools and techniques have been developed to generate and automate this process, many of which have been evaluated in the literature or internally within companies. Typical metrics for determining effectiveness of these...
Since IEEE 802.11ad doesn't have any recovery mechanism for multicast technology at Media Access Control (MAC) layer, the lost packets can't be detected and retransmitted under the influence of interference, conflictions or other issues. Given this, a Multi-Leader Based Protocol (MLBP) is proposed to reduce the control overhead under the premise of improving the reliability of Millimetre Wave WPANs...
Voice capacity over wireless local area networks (WLANs) can be increased by the statistical multiplexing among on/off voice calls. However, in previously proposed schemes, the admitted voice calls that transit from silence state to talkspurt state are mixed up with the new voice calls to contend for the channel. The increase in the traffic load of new voice users could degrade the performance of...
Diversity gain can be achieved when cooperative transmission adopted in the wireless networks, which can provide much help to weak channel communication. Much has been done on the cooperative protocol and the performance analysis. In this paper, a new cooperative schedule is proposed. In which we have discussed three issues: when cooperative transmission should be adopted, how to choose the relay...
By using the intense THz pump-THz probe spectroscopy, we observed the collective Higgs amplitude mode of the BCS order parameter in a nonadiabatically-excited superconducting Nb1−xTixN films. The result opens a new pathway for ultrafast optical coherent control of macroscopic quantum states.
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