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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro
Imam Santoso
Jurusan Teknik Elektro FT Undip
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KINERJA EKUALISER MENGGUNAKAN ALGORITMA MODULUS KONSTAN DALAM MENDETEKSI ISYARAT DS-CDMA PEMAKAI-JAMAK Imam Santoso
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 7, No 2 (2005): TRANSMISI
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (44.094 KB) | DOI: 10.12777/transmisi.7.2.37-40

Abstract

This research presents modified constant modulus algorithm (CMA) with prewithening and minimum entropy measurement to detect the signal of desired user from multiuser Direct Sequence Code Division Multiple Access (DS-CDMA) signals. Themodified CMA detector could blindly adapted or equalized the fading channel caused by multipath without training signal as in the conventional adaptive detectors. Simulation was used to evaluate the detector’s performance. As the results under multipath fading channel with SNR = 20  dB and desired user power  –5 dB than the other users, the modified CMA gave the bit error probability 0.031 and this is better than those with the standard CMA, matched filter, and LMS detectors. Keyword: CDMA, channel equalization, CMA.
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