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Robust, efficient and low complexity design methodologies for high speed multi-band orthogonal frequency division multiplexing ultra-wideband (MB-OFDM UWB) is presented. The proposed design is implemented in 0.13μm CMOS technology with the core area of 2.66mm × 0.94mm. Operating at 132MHz clock frequency, the estimated power consumption is 170mW.
In this paper the effects of multiplier architecture on the overall performance of the OFDM De-modulator for an UWB system are studied. The two commonly used VLSI multiplication algorithms, namely, the Baugh-Wooley algorithm and the Modified-Booth algorithm, are the candidates for this study. Partial product accumulation session can be found in both algorithms. There are two major classes of partial...
OFDM-based systems are sensitive to phase distortion. Although the carrier frequency offset (CFO) can be coarsely corrected in time domain, the residual CFO, the sampling frequency offset and other phase noises will still lead to system performance degradation. Therefore, using fine phase tracking in frequency domain is necessary to guarantee the receiver performance. In this paper, an efficient and...
Multiband orthogonal frequency division multiplexing (MB-OFDM) ultra wideband (UWB) systems have drawn much attention for its high spectrum efficiency and multiple access capability. However, its large throughput requirement and low power spectral density result in high hardware complexity and high power consumption, which are challenges of designing the packet detector. In this paper, a novel detection...
A band-selective low-noise amplifier (BS-LNA) for multiband orthogonal frequency-division multiplexing ultra-wide-band (UWB) receivers is presented. A switched capacitive network that controls the resonant frequency of the LC load for the band selection is used. It greatly enhances the gain and noise performance of the LNA in each frequency band without increasing power consumption. Moreover, a fully...
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