Spur Reduction Of MB-OFDM UWB System using CMOS Frequency Synthesizer
نویسندگان
چکیده
As Technology progress deeper into submicron CMOS, traditional analog circuits face problems that are not to be solved purely by analog innovations. Instead, new architectures are being proposed which take advantages of the relatively cheaper of the digital circuits to augment or improve the diminishing performance of the analog circuitry. The conventional approach performs the design of 14 bands CMOS frequency synthesizers with spur reduction for MB-OFMD for analog circuits which have high distortions and noise. My proposed work is to replace the analog input PLL into All Digital PLL with spur reduction. Then the frequency mixing architecture alleviates harmonics mixing and pulling to diminish spur generation. The simulation is performed using Model SIM and the implementation using Microwind to diminish spur reduction.
منابع مشابه
A CMOS Frequency Synthesizer Block for MB - OFDM UWB Systems
Chang-Wan Kim et al. 437 A CMOS frequency synthesizer block for multi-band orthogonal frequency division multiplexing ultrawideband systems is proposed. The proposed frequency synthesizer adopts a double-conversion architecture for simplicity and to mitigate spur suppression requirements for out-of-band interferers in 2.4 and 5 GHz bands. Moreover, the frequency synthesizer can consist of the f...
متن کاملPerformance Evaluation of MB-OFDM based UWB System
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...
متن کاملEffect of PAPR Reduction Technique on the Performance of ASTC MB-OFDM UWB System
Multiband Orthogonal Frequency Division Multiplexing (MB-OFDM) for Ultra Wideband (UWB) technology presents a potential candidate for the diverse set of high performance short-range applications. But this Various techniques have focused on minimizing the PAPR for OFDM systems in the literature. These techniques can also be used for PAPR reduction in MB-OFDM UWB systems to enhance performance. I...
متن کاملError Rate Analysis of Multiband of CDM UWB System in UWB fading Channel
Abstract— Multiband orthogonal frequency division multiplexing (MB-OFDM) ultra wide band (UWB) system become promising technique for high data rate due to its large number of advantage over single band UWB system, but it suffer from coherent frequency diversity problem due to OFDM. In this paper we have proposed, multiband orthogonal frequency and code division multiplexing (MB-OFCDM) UWB syste...
متن کامل