coded OFDM transmission scheme
A Numerically efficient power optimization scheme for coded OFDM systems in achieving minimum frame error rate
... the coded OFDM system described in IV-A with the previous conventional constant power and the proposed power allocations is the power allocations and the channel gain for a channel response ...the ...
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Image Transmission over Space Time Coded MIMO OFDM System with Punctured Turbo Codes
... Time Coded (STC) Orthogonal Frequency Division Multiplexed (OFDM) ...this scheme for quality ...Convolutional Coded (PCC) scheme compared with PTC ...
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Improving the Performance of OFDM and Reduce PAPR Using Trigonometric Transform
... new scheme is proposed for image transmission over coded Orthogonal Frequency Division Multiplexing (COFDM) system with Low Density Parity Check Coding ...this scheme for improving the ...
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Mitigation of interferences in LTE systems
... antennas. OFDM is an enticing modulation technique for transmitting large amounts of digital data over radio ...offset scheme to reduce PAPR in Alamouti coded OFDM systems without side ...
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LDPC Coded OFDM Transmission Based on Adaptive Power Weights in Cognitive Radio Systems
... LDPC-coded OFDM systems while users are experiencing the mutual inter- ...iterative scheme for message passing in the LDPC de- coder, while in the secondary transmitter, power weights for each ...
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A Review on Robust Image Transmission with OFDM over an AWGN Channel
... new scheme approach is proposed for progressive image transmission over coded Orthogonal Frequency Division Multiplexing (OFDM) system with Low Density Parity Check Coding ...this ...
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Ber Analysis Based On Convolutional Coded Ofdm For Digital Audio Broadcasting System
... CONCLUSION In this Bit Error Rate (BER) performances of Convolutional coding is evaluated under high data rate signals like speech and image by varying different modulation scheme using AWGN channel. This ...
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New Transmission Coding Scheme for MIMO-OFDM System
... introduced coded MIMO-OFDM ...new transmission coding scheme for MIMO-OFDM system in section ...MIMO-OFDM scheme, finally section V conclude ...
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Space Time Block Coded Adaptive Modulation Aided OFDM
... time coded adaptive ...space-time coded AOFDM scheme in order to improve both the BER and BPS performance of the sys- ...data transmission, it was delay ...
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A Technique COFDM For Improving Efficiency To Transmitted An Images Through Modulation Technique For Wireless Communication Problem
... from Coded Orthogonal Frequency Division Multiplexing (COFDM) system, and simulate for the transmission of an image of the size of 11,878 bytes in ...modulation scheme, applied to each subcarrier so ...
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A New Transmission Scheme for MIMO – OFDM
... There are few differences between V-BLAST and D-BLAST. While the layers of the V-BLAST can be coded or uncoded, the D-BLAST is intended to be used only with coded layers. This is the reason behind cycling ...
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Space-Time Coded OFDM with Low PAPR
... baseband OFDM signal is formed by the superposition of many sinusoids with di ff erent frequen- cies, the instantaneous power of the resulting signal may be larger than the average power of the OFDM signal ...
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Enhancement of Uplink Achievable Rate and Power Allocation in LTE-Advanced Network Systems
... Uplink communication framework in an LTE-A network given in above fig 1. Base station (BS) is located in the centre of each cell. Each user equipments (UE) try to connect with base station simultaneously for uplink ...
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PERFORMANCE OF TURBO CODED OFDM IN WIRELESS APP
... channels, OFDM is able to mitigate the detrimental effects of multi path fading using a simple one- tap ...as OFDM suitable for high data rate transmission with forward error correction (FEC) methods ...
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Analysis of Timing Synchronization with CE for UWBSystem under Fading Channels
... This scheme of combined timing synchronization with channel estimation can reduce the BER of the system very efficiently in case of AWGN ...this scheme we have implemented QPSK, which may also be replaced ...
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Unequal Power Allocation For Image Transmission
... scalable coded bit stream has one advantage in which some bits hold more important information compared with others; thus it is natural to have higher protection over the more important ...for transmission ...
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HIPERLAN like Turbo Coded Multi user Detection Assisted OFDM Based Interactive Video Telephony
... based OFDM arrangements are studied in the context of HIPERLAN 2-like sys- ...(MMSE) scheme by about 5dB in terms of the required Signal-to-Noise Ration (SNR) and this performance gain manifested itself ...
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Comparative Study of Concatenated Turbo Coded and Space Time Block Coded as well as Space Time Trellis Coded OFDM
... In Figure 2, we show our FER performance comparison between the various 2 BPS e ective throughput schemes, namely the 4PSK space-time trellis codes and the spacetime block code G2 concat[r] ...
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Optical Wavelet Signals Processing and Multiplexing
... The huge bandwidth provided by optical fibers and the capability of signal processing directly in the optical layer make an attractive combination for future multiple access networks. The feasibility of optical code ...
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Performance of Bit Error Rate and Q-Factor for OFDM-RoF System using QAM Modulation
... In digital transmit, the data packet can travel through different modulation formats such as PSK (Phase Shift Keying) and QAM (Quadrature Amplitude Modulation). OFDM has multi-sub-carrier to transmit low data ...
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