In cellular systems, the user equipment (UE) can request a change in frequency band when its rate drops below threshold on current band. The UE is then instructed by base station (BS) to measure quality of candidate bands, which requires measurement gap data transmission, thus lowering rate. We propose an online-learning based switching approach that does not require any gap. Our proposed class...

Periodic piezoelectric beams have been used for broadband vibration energy harvesting in recent years. In this paper, a periodic folded piezoelectric beam (PFPB) is introduced. The PFPB has special features that distinguish it from other periodic piezoelectric beams. The Adomian decomposition method (ADM) is used to calculate the first two band gaps andtwelve natural frequencies of the PF...

In this paper, a modified auto zeroed integrator is used to design and simulate a low-voltage high-Q switched capacitor pseudo 2-path filter.  The filter is a sixth–order Chebyshev band-pass filter operating at sampling frequency of 1MHz and center frequency of 250 kHz with a quality factor of 50. The proposed filter has both low-voltage and high speed properties of the auto zeroed integrators ...

This paper presents recent progress made in the development of an optical packet and circuit integrated network. From the viewpoint of end users, this is a single network that provides both high-speed, inexpensive services and deterministic-delay, low-data-loss services according to the users’ usage scenario. From the viewpoint of network service providers, this network provides large switching...

The operation, design and control of an isolated bidirectional DC–DC converter for hybrid electric vehicle energy management applications are discussed. Different operation modes and boundary conditions are distinguished by phase-shift angle and load conditions. The absolute and relative output voltage ripple was derived. The dead-band effect and safe operational area are further investigated. ...

Digital Object Identifier 10.1109/MMM.2009.933592 R adio frequency (RF) microelectromechanical systems (MEMS) switches and varactors, developed in 1996–2002 for lowloss switching/routing circuits and X-band (8–12 GHz) to millimeter-wave (mm-wave) (30–120 GHz) phase shifters, have seen increasing applications in tunable fi lters, tunable antennas, and reconfi gurable matching networks. RF MEMS d...

This paper presents a design of a wireless power transfer system based on magnetic resonant coupling technology with in-band wireless communication. To increase the transmission distance and compensate for the change in the effective capacitance due to the varying distance, the proposed system used a loop antenna with a selectable capacitor array. Because the increased transmission distance ena...

Data traffic demand in cellular networks has been tremendously growing and has led to creating congested RF environments. Accordingly, innovative approaches for spectrum sharing have been proposed and implemented to accommodate several systems within the same frequency band. Spectrum sharing between radar and communications systems is one of the important research and development areas. In this...

Photonic burst switching (PBS) architecture with variable time slot provisioning supporting high-speed bursty data transmission within optical enterprise networks is presented as follows: First, the edge and switching node architecture for in-band and out-of-band signaling is defined. Second, we introduce: I) a generalized multiprotocol label switching (GMPLS) based PBS software architecture in...