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This paper presents a new transceiver for impulse radio ultra-wideband (IR-UWB) systems. This work is related to CHIST-ERA SMARTER project (Smart Multifunctional Architecture and Technology for Energy aware wireless sensoRs) which address autonomous wireless sensors nodes. The ultra low-power transceiver consists of an on-off keying (OOK) modulator/demodulator and a pulse generator. To reduce power...
The recent trend in wireless communication networks has seen the focus shift from spectrum efficiency to energy efficiency. Use of multi clock-rate sampling devices to provide reduced power idle listening promises to significantly reduce power consumption in wireless devices without affecting throughput or transmission range. However, the use of frequency agnostic preamble to enable multi clock-rate...
A fully integrated UWB-IR (ultra-wideband impulse-radio) transceiver was developed for wireless body area networks. The transceiver includes all of the components required for the transceiver; a pulse generator and a power amplifier for a transmitter, an analog front-end circuit and analog-to-digital converters for a receiver, a base-band circuit, and a clock generator. The transmitter generates precisely...
Advancing technology has made it possible to integrate millions of transistors on a very small die and to clock these transistors at very high speeds. Power consumption has become the limiting factor for portable high-performance wireless applications. In this paper, we propose a system level technique to improve the power efficiency of the wireless receiver design. The proposed clock gating scheme...
This paper describes a comparative analysis between two topologies of operational amplifiers to design a 40 MS/s 12-bit pipeline analog to digital converter (ADC). The analysis includes AC and transient simulation to select the proper topology. This ADC is implemented in a 0.35 mum AMS CMOS technology with 3.3 V single power supply. The capacitors and selected operational amplifiers were scaled for...
3D contactless technology based on capacitive coupling represents a promising solution for high-speed and low power signaling in vertically integrated chips. AC coupled interconnects do not suffer from mechanical stress, and the parasitic load is much reduced when compared to standard DC solutions, such as wire bonding and micro bumps. Communication system based on wireless interconnection scheme...
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