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Performance of DS/SS System Using Pseudo-Ternary M-Sequences
Ryo ENOMOTO Hiromasa HABUCHI Koichiro HASHIURA
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E93-A
No.11
pp.2299-2306 Publication Date: 2010/11/01 Online ISSN: 1745-1337
DOI: 10.1587/transfun.E93.A.2299 Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Signal Design and its Application in Communications) Category: Spread Spectrum Technologies and Applications Keyword: spreading code sequence, spread spectrum, signal tracking, delay-locked loop, jitter, bit error rate,
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Summary:
In this paper, newly-found properties of the pseudo-ternary maximum-length shift register sequences (pseudo-ternary M-sequences) are described. In particular, the balance properties, the run-length distribution, the cross-correlation properties, and the decimation relationships are shown. The pseudo-ternary M-sequence is obtained by subtracting the one-chip shifted version from the {+1,-1}-valued M-sequence. Moreover, in this paper, performances of the direct sequence spread spectrum (DS/SS) system using the pseudo-ternary M-sequence are analyzed. In the performance evaluation, tracking error performance (jitter) and bit error rate (BER) performance that takes the jitter into account in DS/SS system with a pseudo-ternary M-sequence non-coherent DLL are evaluated. Using the pseudo-ternary M-sequence instead of the conventional M-sequences can improve the tracking error performance about 2.8 [dB]. Moreover, BER of the DS/SS system using the pseudo-ternary M-sequence is superior about 0.8 [dB] to that using the {+1,-1}-valued M-sequence.
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