نتایج جستجو برای: fft ofdm
تعداد نتایج: 15949 فیلتر نتایج به سال:
This paper presents an analysis of the effect of the carrier frequency offset and phase noise on a performance of Wavelet based Filtered Multi-Tone (WFMT) systems for a general AWGN channel. It is well known that the carrier frequency offset in OFDM System yields to significant degradation of the signal-tonoise ratio (SNR). Below I show that a novel WFMT modulation is less sensitive to the freq...
This Paper is containing the different types of Channel Coding which is used in multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM). To increase the efficiency of MIMO-OFDM there are several channel coding are applied in it.in this paper the aim is to show the discussion about all channel coding which are used as well as using in MIMO-OFDM system. This paper is...
در سالهای اخیر، سرویسهای جدیدی در مخابرات بیسیم مطرح شده اند که نرخ داده ی بسیار بالایی دارند. یکی از این سیستمها، تکنولـوژی فـراپهـن باند میباشد. سیـستمهای فـراپهـن بـانـد انـواع مخـتلفی دارنـد کـه یـکی از پرکاربـردتـرین آنـها نـوع mb-ofdm uwb میباشد. گیرنده ی این سیستمها به دلیل نوع استفاده ی آن می بایست مصرف توان پایینی داشته باشد. وجود بلوکهای fft و adc در گیرنده ی این سیستم به دلیل مصرف تو...
In this paper, we present a novel high-speed lowcomplexity four data-path 128-point radix-2 FFT/IFFT processor for high-throughput MB-OFDM UWB systems. The high radix radix-2 multi-path delay feed-back (MDF) FFT architecture provides a higher throughput rate and low hardware complexity by using a four-parallel data-path scheme. A method for compensating the truncation error of fixed-width Booth...
Abstract This paper proposes a 128-point FFT processor for Orthogonal Frequency Division Multiplexing (OFDM) systems to process the real time high speed data based on cached-memory architecture (CMA) with the resource Mixed Radix 4-2 algorithm using MDC style. The design and implementation of FFT processor has been done using the above technique to reduce the size and power. Using the above alg...
The performance of the Fast Fourier Transform computation plays a crucial role in the overall operation of OFDM modems. A VLSI architecture realizing the FFT has to perform in real time, adapt to various data rates and accommodate support for power dissipation requirements. This paper presents a VLSI architecture for real time FFT processing. The design involves four (4) radix-4 and one (1) rad...
The 5G technologies and OFDM introduce a substantial element of latency in the baseband Massive MIMO system. To declaim low delay demand multiple input outputs, Fast Fourier Transform (FFT) also consequent implementation was proposed. main idea this proposed system is to utilize VLSI chip routing technology reduce computations, processing time, latency. This number computational complexities do...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید