Analytical comparison of optical code-division multiple-access systems with and without a successive interference cancellation scheme using modified prime-sequence codes

被引：5

作者：

Eltaif, Tawfig ^{[1
]}

Shalaby, Hossam M. H. ^{[2
]}

Shaari, Sahbudin ^{[1
]}

Hamarsheh, Mohammad M. N. ^{[3
]}

机构：

[1] Univ Kebangsaan Malaysia, Inst Micro Engn & Nanoelect, PTL, Ukm Bangi 43600, Selangor, Malaysia

[2] Univ Alexandria, Fac Engn, Dept Elect Engn, Alexandria 21544, Egypt

[3] Multimedia Univ, Fac Informat Sci & Technol, Ayer Keroh 75450, Melaka, Malaysia

来源：

OPTICAL ENGINEERING | 2008年 / 47卷 / 09期

关键词：

Optical code-division multiple access (OCDMA); multiple-access interference (MAI); modified prime-sequence codes; successive interference cancellation (SIC);

D O I：

10.1117/1.2977525

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We analyzed direct-sequence code-division multiple-access system using a successive interference cancellation (SIC) scheme. Modified prime-sequence codes are utilized as signature sequences, and the performance measure studied in this paper takes into account the the effect of imperfect interference cancellation. The basic principle of the SIC scheme is to subtract the strongest received signals from the original signal one by one till all users have been detected and demodulated. In this analysis we have compared optical code-division multiple-access systems with and without the cancellation scheme, and it is shown that the SIC scheme with -20-dBm effective power can suppress multiple-access interference better than the system without cancellation. (C) 2008 Society of Photo-Optical Instrumentation Engineers.

引用

页数：6

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