| Performance Enhancement for Optical Fast Frequency-hopping CDMA Systems by BCH Channel Coding |
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| 作者姓名： | 吉建华 范戈 |
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| 作者单位： | JI Jianhua(吉建华):National Laboratory of Local Fiber-optic Communication & Advanced Optical Communication Systems,Shanghai Jiaotong University, Shanghai 200030, China
Fan Ge(范戈):National Laboratory of Local Fiber-optic Communication & Advanced Optical Communication Systems,Shanghai Jiaotong University, Shanghai 200030, China
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| 摘 要： | 1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｏｐｔｉｃａｌｆａｓｔｆｒｅｑｕｅｎｃｙ ｈｏｐｉｎｇｃｏｄｅ ｄｉｖｉｓｉｏｎｍｕｌｔｉｐｌｅ ａｃｃｅｓｓｓｙｓｔｅｍｓ (ＦＦＨＯＣＤＭＡ)ｈａｖｅｒｅｃｅｎｔｌｙｂｅｅｎ ｐｒｏｐｏｓｅｄａｓａｃａｎｄｉｄａｔｅｆｏｒｏｐｔｉｃａｌｌｏｃａｌａｒｅａｎｅｔｗｏｒｋｓ(ＬＡＮｓ) 1,2 ] .Ｉｎｔｈｉｓｓｃｈｅｍｅ ,ＦＢＧｓａｒｅｃｏｄｉｎｇｄｅｖｉｃｅｓ,ｗｈｉｃｈｓｌｉｃｅｔｈｅｓｐｅｃｔｒｕｍｏｆｔｈｅｉｎｃｏｍｉｎｇ ｐｕｌｓｅｔｏｒｅｆｌｅｃｔ .Ｔｈｅｏｕｔｐｕ…
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| 收稿时间： | 2001/11/15 |
Performance Enhancement for Optical Fast Frequency-hopping CDMA Systems by BCH Channel Coding |
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| JI Jianhua,Fan Ge.Performance Enhancement for Optical Fast Frequency-hopping CDMA Systems by BCH Channel Coding[J].中国激光(英文版),2002,11(6):445-448. |
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| Authors: | JI Jianhua Fan Ge |
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| Abstract: | In this paper, the impact of optical beat noise on the performance of optical fast frequency hopping code division multiple access (FFH OCDMA) networks is analyzed. BCH/FFH OCDMA to reduce the impact of optical beat noise is proposed. It is shown that, BCH/FFH OCDMA has much better performance under the same bit rate, same chip time and same number of available wavelengths. Another advantage for BCH/FFH OCDMA is that the code length of one-coincidence sequence will be shorter, which can greatly reduce the difficulty of fabrication for fiber gratings. |
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| Keywords: | optical code division multiple access(OCDMA) fast frequency hopping(FFH) optical beat noise BCH code one coincidence sequence |
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