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This paper studies a transmission scheme for in-band full-duplex communication system, which is established on the base of complementary codes. Having ideal correlation properties, complementary codes are capable of providing effective mitigation of self-interference (SI) introduced by co-frequency co-time full-duplex (CCFD) communications, an efficient multiple access for multiple users as well as...
With network coding, data flows from the source to the destinations may be jointly coded in some intermediate nodes to achieve the maximum network capacity. There is scarcely any theory to systematically model and evaluate the loss of network coding. Without such a theory, the analysis of network coding under various settings is far from practical. To fill the vacancy, we introduce a loss model into...
Statistical distributions of link and path travel times are important inputs to reliability-sensitive transportation models. This paper proposes to use copula functions for specifying and calibrating a tractable dependence structure for link travel times. Our empirical study indicates that travel time data tend to have a quasi-tail dependence structure, which is inconsistent with those embedded in...
In clustered heterogeneous networks, some nodes are set as cluster heads, responsible to integrate the information from the intra-cluster members and send it to the sink node. Therefore cluster heads dissipate much more energy than other sensor nodes. And the stability of networks can be affected when the first node dies. We assume that nodes are assumed be equipped with different energy randomly,...
We present a 30 GHz silicon photonic platform that includes low-loss passive components as well as high-speed modulators and photodetectors. The platform is available to the community as part of the OpSIS-IME MPW service.
Shared shuttle run services are ideal for rapid and relatively inexpensive prototyping. We present a silicon photonic platform that offers monolithically integrated modulators and photodetectors with 30 GHz bandwidths, available through the OpSIS MPW service.
We report on several multi-project wafer (MPW) platforms for optoelectronic systems, which support monolithic integration of modulators and detectors at 25 Gb/s or higher. We also describe the Luxtera platform, which includes CMOS integration.
In order to compare the performance differences of IGBTs/VDMOSFETs based on wide bandgap material 4H-SiC and silicon(Si), the basic theory of semiconductor physics for 4H-SiC and Si was used to describe the quantitative relationship of carrier mobility with doping concentration, output I-V curves with devices design and fabrication parameters, switching characteristics with material properties and...
In order to compare the performance differences between power IGBTs fabricated with 4H-SiC and Si, the basic theory of semiconductor physics for 4H-SiC and Si is used to describe the quantitative relationship between their epilayer doping concentration, epilayer thickness, on-resistance and breakdown voltage, the MATLAB software is used to calculate the comparison curves. For devices with breakdown...
One of the competitive solutions to expand the function of microelectromechanical system (MEMS) is the integration of piezoelectric lead zirconate titanate (PZT) thin films for device self-actuation at low driving voltage, device self-sensing with low power consumption, as well as for energy harvesting. However, up-to-date, difficulties still exist not only in PZT film preparation but also in PZT...
In order to offer more suggestions for the construction of energy transportation channels in China, we evaluated the existing system with the scale information entropy. By calculating the scale information entropy and the equilibrium degree with the data of annual investment in the fixed assets of energy transportation, we measured the scale and its rationality. Empirical results show that the partial...
Management of traffic incident is an essential part of emergency management. Impact analysis of incident becomes more and more important in the operation of Intelligent Traffic System. This paper uses flow data collected from loop detectors to analyze the impact of incident in urban traffic system. A complex network model using correlation coefficient as the edge weight is constructed. Then, the random...
In-home healthcare and smart nursing are highly promoted recently by progress and advances in micro electromechanical systems (MEMS) and wireless sensor network (WSN) technology. In this work, a piezoelectric lead zirconate titanate (PZT) thin film actuated and sensed single crystal silicon disk resonator with excellent system integration capability, low driving voltage and great mechanical quality...
In the coming age of digital TV, new characteristics of digital TV have led to the feasibility to analyze the users' behavior. In this paper, we present the overall structure of this information gathering system based on MPEG-2. Also introduced is the specific technical description of this system.
This paper presents the growth and characterization of PZT ferroelectric thin films by using the sol-gel technology. In this paper, we study the influences of annealing temperatures, different film thickness and different substrates, including titanium and platinum layers on silicon substrate, on the ferroelectric performance of PZT thin films by analyzing the polarization hysteresis. The polarization...
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