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- W2394397121 abstract "In this paper, a concept of image grading transmission is put forward to enhance data rate and to improve the usage of subcarriers in orthogonal frequency division multiplexing (OFDM). The idea originates from the wavelet packets representative of an image in which information is graded in terms of different priorities. The graded image facilitates more efficient use of adaptive subcarriers and bits allocation. The results of simulation in typical mobile environment prove that the output signal noise ratio (SNR) of the graded image excels that of the ungraded image by 1—2 dB under the same channel condition." @default.
- W2394397121 created "2016-06-24" @default.
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- W2394397121 date "2003-01-01" @default.
- W2394397121 modified "2023-09-23" @default.
- W2394397121 title "OFDM Scheme Based on Wavelet Packet Transform-Oriented Graded Multi-Service" @default.
- W2394397121 hasPublicationYear "2003" @default.
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