[PDF] Top 20 Enhancing Performance for Orthogonal Frequency Division Multiplexing in Wireless System

... the performance of our algorithm with Maximum Satisfaction Algorithm (MSA) and Random Channel Assignment ...problem[1]. Performance of the proposed algorithm is validated by running a number of computer ... See full document

... Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier transmission technique proposed in mid ...In frequency selective channel, delay spread of the channel impulse ... See full document

... Orthogonal frequency division multiplexing (OFDM) is a extraordinary case of multi-carrier transmission which can support high data rate prerequisite of multimedia based wireless ...for ... See full document

... future wireless systems are expected to support a wide range of services which includes video, data and ...voice. Orthogonal Frequency Division Multiplexing (OFDM) is a promising ... See full document

... ILLIMETER-WAVE wireless systems employing fiber feeds are seen as having the potential to provide bit rates in excess of 100 Mb/s to both mobile and fixed users ...millimeter-wave wireless environment, they ... See full document

... spatial multiplexing of 2x2 antennas. A carrier frequency of ...downlink system start from Optical Line Transmission (OLT) up to the end user will be designed and simulated using OptiSystem ... See full document

... of orthogonal frequency division multiplexing (OFDM) has come up innovative orthogonality principle to meet the requirements with high data ...overall system performance is the ... See full document

... The use of adaptive beamforming technique can reduce the effects of signal distortion introduced by multipath environment, thus reducing bit error rate of the received signal. This technique can also be used for a ... See full document

... involves Frequency Division Multiplexing and Multicarrier ...be orthogonal this allow subcarriers to overlap and save the bandwidth that achieving high data rate, therefor OFDM technology is ... See full document

... OFDM system using IMBH (Improved Modified Bartlett- Hanning) pulse shape ...its performance in an OFDM respectively. To evaluate performance of the OFDM system normalized frequency ... See full document

... As illustrated in Figure 1 the structure of the OFDM receiver is completely exposed to GNU Radio Companion, a graphical tool to setup and configure signal processing throw graphs. The receiver is divided into two ... See full document

... FFT-based frequency estimator is Available as shown in OFDM System Design section, using Gaussian channel and Multipath fading channel we can Vary Symbol time and using Symbol Time latency will minimize and ... See full document

... ABSTRACT In this paper, an intuitive comparison of the computational performance of orthogonal frequency division multiplexing OFDM system has been made in terms of complex calculations [r] ... See full document

... transmission System in order to achieve high reliability and availability without using additional ...spatial multiplexing techniques, where the main objective is to provide higher bit rates compared to a ... See full document

... of wireless avenues that can be achieved in the orthogonal ...channel. Orthogonal Frequency Division Multiplexing (OFDM) is a modulation technique for transmission of ... See full document

... Orthogonal Frequency Division Multiplexing (OFDM), a special form of Multi carrier Modulation (MCM) with densely spaced subcarriers and overlapping spectra was patented in the ...older ... See full document

... the wireless channels will cause more severe inter-symbol interference (ISI) if single-carrier modulation, such as in time-division multiple access (TDMA) or Global System for Mobile Communications ... See full document

... There are many proposed techniques to reduce the PAPR of OFDM system. The easy distortion technique to reduce PAPR is the clipping method. The transmitted signal higher than given threshold is clipped. Clipping is ... See full document

... In wireless medium to increase the data rate with high performance orthogonal frequency division multiplexing (OFDM) is used which uses inverse fast fourier transform at the ... See full document

... new wireless communication services, the Third Generation Partnership Project (3GPP) has presented the Carrier Aggregation (CA) concept as one of the Long Term Evolution-Advanced (LTE-A) features in order to ... See full document