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Description: QPSK调制下在AWGN和Rayleigh衰落信道下的仿真以及误码率计算，包含完整的报告说明-QPSK modulation in AWGN and Rayleigh fading channel simulation, as well as bit error rate calculation, the report contains a complete description
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Size: 611328 |
Author: chengbin |
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Description: Simulations over AWGN and Rayleigh channels, at various signal-to-noise ratios, verify the excellent performance of this novel APEL-turbo scheme. Performance comparisons were carried out between turbo coded APEL, JPEG, and BMP image files.
To provide a fair comparison between the APEL and JPEG images, compression level had to be the same. This resulted in the data reduction for both APEL and JPEG to be around 5 to 1.
In the assessment of bit errors within a received image file, a quantitative pixel error rate offers a fairer comparison. Therefore, it is appropriate to represent the error performance in a ratio called “Pixel Error Rate (PER)”, which is a measure of the degree of image degradation.
Through the analysis of the ith received pixel’s variance from its transmitted value, a measure of visual disturbance, Δi, can be quantified as in (1), where ti and ri represent the transmitted and received pixel colours respectively, for an n colour image.
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Size: 386048 |
Author: A.H.M Shahparan |
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Description: In this paper, energy efficient VLSI architectures for linear turbo equalization are studied. Linear turbo
equalizers exhibit dramatic bit error rate (BER) improvement over conventional equalizers by enabling a form of
joint equalization and decoding in which soft information is iteratively exchanged between the equalizer and decoder.
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Size: 1515520 |
Author: suresh |
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Description: 卷积码与Turbo码的性能仿真对比，在AWGN信道和Rayleigh信道下。-Performace Comparison of Convolutional codes and Turbo codes under AWGN channels
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Size: 43008 |
Author: klhkl |
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Description: In this contribution, we propose an adaptive Turbo
Trellis Coded Modulation (TTCM) aided Distributed Space-Time Trellis Coding (STTC) scheme for cooperative communication over quasi-static Rayleigh fading channels.
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Size: 138240 |
Author: Hakim |
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Description: TURBO均衡算法，完整的通信系统，可直接仿真，信源编码调制瑞利水落信道，然后接收端进行解码均衡，最后绘出误码率曲线图-TURBO equalization algorithm, a complete communication system, direct simulation, the source code modulation Mizuochi Rayleigh channel, then the receiver decodes the equalizer, and finally the bit error rate plotted graph
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Size: 1341440 |
Author: 黄云 |
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