Performance analysis of successive interference cancellation scheme for optical CDMA systems using modified prime sequence codes

被引：1

作者：

Eltaif, Tawfig ^{[1
]}

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

Shaari, Sahbudin ^{[1
]}

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

机构：

[1] Univ Kebangsaan Malaysia, Photon Technol Lab, Inst Micro Engn & Nanoelect, Bangi 43600, Selangor, Malaysia

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

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

来源：

INFORMATION OPTICS AND PHOTONICS TECHNOLOGIES II | 2008年 / 6837卷

关键词：

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

D O I：

10.1117/12.755327

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we propose a new technique in direct sequence code division multiple access system using on-off key and modified prime sequence code, the scheme of this technique dubbed successive interference cancellation (SIC). The basic principle of 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 take in account the possibilities of errors in previous cancellation. It has been shown that the proposal IC scheme with (-20dBm) effective power can suppress multiple-access interference (MAI), and improve the system performance significantly.

引用

页数：8

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