Optical CDMA system using embedded transmission method with Manchester signaling

A. Iwata, H. Sawagashira, T. Sonoda, K. Kamakura, Iwao Sasase

研究成果: Conference contribution

2 引用 (Scopus)

抜粋

We propose an optical CDMA system using the embedded transmission (ET) method with Manchester signaling. In the proposed system, transmission bits are embedded in the signature sequence used in optical CDMA systems. Although the Manchester signaling uses two slots for a transmitted bit, the two slots are included in the chip duration of optical CDMA. According to an embedded bit, an optical pulse is transmitted in either slot. In the receiver, the threshold detection for the embedded bits reduces the effect of multiple access interference (MAI) into the erasure state, which is not a transmitted signal. By using codeword of the BCH codes as the transmitted bits, the effect of MAI is removed in the decoding procedure of BCH codes. Since the decoding procedure treats the effect of MAI as the erasure bits, instead of the error bits, using extended BCH(eBCH) codes allows to remove the effect of MAI more efficiently. We analyze the bit error rate (BER) of the system using the ET method with Manchester signaling on the assumption that photodetector outputs obey the Poisson distribution. We show that the system using the ET method with Manchester signaling achieves better BER performance than that without Manchester signaling.

元の言語English
ホスト出版物のタイトルIEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings
ページ378-381
ページ数4
II
出版物ステータスPublished - 2001
イベント2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 2001) - Victoria, BC, Canada
継続期間: 2001 8 262001 8 28

Other

Other2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 2001)
Canada
Victoria, BC
期間01/8/2601/8/28

    フィンガープリント

ASJC Scopus subject areas

  • Signal Processing

これを引用

Iwata, A., Sawagashira, H., Sonoda, T., Kamakura, K., & Sasase, I. (2001). Optical CDMA system using embedded transmission method with Manchester signaling. : IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings (巻 II, pp. 378-381)