用Malvar子波變換實(shí)現(xiàn)MCM信道不等帶寬分配
ASSIGNMENT OF THE MCM CHANNEL BANDWIDTH NONUNIFORMLY USING MALVAR WAVELET TRANSFORM
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摘要: 本文把Malvar子波變換應(yīng)用于多載波調(diào)制(MCM)系統(tǒng),提出了對信道進(jìn)行不等帶寬分配,克服多個單音(窄帶)干擾的思想,有效地提高了信道的利用率和系統(tǒng)的穩(wěn)定性。
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關(guān)鍵詞:
- Malvar 子波變換; 單音干擾; 信道利用率
Abstract: In this paper, Malvar wavelet transform is implemented in MCM (Multicarrier Modulation) system. It is proposed that assigning the bandwidth nonuniformly using Malvar wavelet transforming is to combat with the multi-tone noises existing simultaneously in MCM system and to improve the efficiency of utilizing the bandwidth. -
Kalet I. The multitone channel[J].IEEE Trans. on Comm.1989, 37(2):119-124[2]Sandberg S D, Tannes M A. Overlapped discrete multitone modulation for high speed copper wire communications[J].IEEE J. of Select.Areas in Comm.1995, 13(9):1571-1585[3]Meyer Y. Wavelets AlgorithmsApplications. SIAM, Philadelphia: 1993.[4]Malvar H S. Lapped transforms for efficient transform/ subband coding. IEEE Trans. on Acoust, Speech, Signal Process, 1990, 38(5): 909-978.[5]Wesfreid E, Wickerhauser M V. Adapted local trigonometric transform and speech processing[J].IEEE Trans. on Signal Processing.1993, 41(12):3596-3600 -
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