This paper investigates the Multi-band OFDM (MB-OFDM) based physical (PHY) layer proposal for IEEE 802.15.3a working group on short-range high data-rate Ultra-wide-Band (UWB) communications. An overview of the MB-OFDM PHY layer architecture with its various parameters is presented and the optimal choice of critical parameters is discussed. Next, we derive the theoretical un-coded Bit Error Rate...

This paper is an attempt to synthesize nanostructured tantalum films on medical grade AISI 316L stainless steel (SS) using pulsed DC plasma assisted chemical vapor deposition (PACVD). The impact of duty cycle (17-33%) and total pressure (3-10 torr) were studied using field emission scanning electron microscopy (FESEM), grazing incidence x-ray diffraction (GIXRD), nuclear reaction analysis (NRA)...

The high-power generation capability of pulsed mode Silicon Double Drift Region (DDR) IMPATT devices has been studied by using generalized simulation software developed by the authors. The software is based on drift-diffusion modeling scheme, incorporating thermal design. After optimization of the device design, it is observed that a maximum efficiency of 9% with an output power of 15W can be a...

The bias-pumped gain-switched fiber laser proposed by us is considered a novel pulsed fiber laser based on a new pulsing mechanism. With a certain signal power seeding, synchronization of temporal evolution can be kept between the output signal laser and the pump. The seed laser can be supplied conveniently by a CW pump power which is named bias pump power. A pulsed pump is responsible for shap...

In this paper, a novel class of pulsed latches of high speed under minimum energy consumption is designed and implemented in 65-nm CMOS technology. This conditional push-pull pulsed latch adopts a push-pull output stage, which is driven by two split paths with a conditional pulse generator. It is implemented in two versions, respectively, without (CP 3 L) and with (CSP 3 L) shareable conditiona...

The GDOES and GDMS analytical systems working in Pulsed RF regime have some distinct advantages compared to non-pulsed glow discharge analytical systems. In this paper we report a rise in MS ionic signals, and in emission atomic lines of analysts in the beginning of the afterglow of RF pulsed GD sources. Making experimental studies with Langmuir probe we demonstrate that the ionization and exci...

Flip-flops is perilous timing elements in digital circuits which have a huge influence on the circuit speed and power consumption. The performance of flip-flop is an significant element to regulate the efficiency of the entire synchronous circuit.This paper recommends a low-power and area-efficient shift register using pulsed latches. Therefore area and power consumption are reduced by substitu...

Pulsed OSL is applied to nine fine-grained sediment samples from Sichuan province, China, using stimulating pulses of 10 ms on and 240 ms off, with an infrared exposure prior to each OSL measurement. Comparison of fading rates between pulsed and non-pulsed signals, the latter also obtained with a preceding IR exposure, shows that fading is significant for mainly the non-pulsed signals. Presence...

This paper proposes a new communication primitive for distributed embedded control systems: the pulsed data stream. A pulsed data stream is a timetriggered cyclic unidirectional data stream that is transmitted for a short duration at a defined phase of every cycle of a periodic control system. Since the duration of a cycle and the phase and duration of the transmission within each cycle are kno...