A new spreading code based on a prime code for synchronous optical code-division multiple-access networks that can be used in\nmonitoring applications has been proposed. The new code is referred to as ââ?¬Å?extended grouped new modified prime code.ââ?¬Â This\nnew code has the ability to support more terminal devices than other prime codes. In addition, it patches subsequences with ââ?¬Å?0sââ?¬Â\nleading to lower power consumption. The proposed code has an improved cross-correlation resulting in enhanced BER performance.\nThe code construction and parameters are provided. The operating performance, using incoherent on-off keying\nmodulation and incoherent pulse position modulation systems, has been analyzed. The performance of the code was compared\nwith other prime codes. The results demonstrate an improved performance, and a BER floor of 10âË?â??9 was achieved.
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