2007
DOI: 10.1016/j.yofte.2006.10.008
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Performance analysis of modified prime-hop codes for OCDMA systems with multiuser detectors

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Cited by 4 publications
(5 citation statements)
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“…For the same balanced photodetection scheme as well as suitable for synchronous networks, Fig. 8 compares the BER performance of the proposed modified TS/WGH embedded M-sequence code with that of conventional PHC, 17 MPHC, [26][27][28] and TS/GH embedded M-sequence code, 21 respectively. Furthermore, the Barker and Walsh-based bipolarbipolar code scheme presented in Refs.…”
Section: Group-by-group Assignment Of Code Wordsmentioning
confidence: 99%
See 1 more Smart Citation
“…For the same balanced photodetection scheme as well as suitable for synchronous networks, Fig. 8 compares the BER performance of the proposed modified TS/WGH embedded M-sequence code with that of conventional PHC, 17 MPHC, [26][27][28] and TS/GH embedded M-sequence code, 21 respectively. Furthermore, the Barker and Walsh-based bipolarbipolar code scheme presented in Refs.…”
Section: Group-by-group Assignment Of Code Wordsmentioning
confidence: 99%
“…Furthermore, an additional optical cross-connect (OXC) devices [22][23][24] is integrated with a code-word-changing algorithm (i.e., hereafter referred to as adaptive OXC device), which automatically triggers a change in the user code word in response to a suspected eavesdropping attack. In current study, compared to conventional TDM, WDM, 1-D spectral amplitude coding (SAC) -OCDMA 25 and various 2-D time-spreading/wavelength-hopping schemes, 17,21,[26][27][28] the scheme proposed in this study improves the synchronous networks' confidentiality by increasing the user cardinality and changing the user code word on a sufficiently frequent (timely) basis.…”
Section: Introductionmentioning
confidence: 99%
“…By reducing code weights, the probability of one data pulse being hit by others with same wavelength decreases. One modification is given in [8], which is removing pulses within odd-numbered frames of a symmetric PHC, hence the code weight as well as the threshold are changed to w m =(w+1)/2.…”
Section: The Modified Prime-hop Codementioning
confidence: 99%
“…Therefore, the performance of spectrally sliced FFH-OCDMA schemes depends on not only the code construction but also noise limitations at the physical layer. Based on the new coding scheme that presented recently [8], this paper …”
Section: Introductionmentioning
confidence: 99%
“…The drawbacks of using an incoherent source are that the optical systems suffer from beat noise as well as from significant dispersion [11]. Previous work [12,13] on PHCs focuses primarily on the reduction of MAI but largely ignoring the impact of the physical layer. The work in [14] has presents a possibility of reducing the beat noise impact in SS FFH-OCDMA by modifying PHCs.…”
mentioning
confidence: 99%