Time-Spreading and Wavelength-Group-Hopping Codes Implemented over Fiber-to-the-Home Networks
Exploiting the inherent cyclic and periodic free-spectral-range (FSR) properties of arrayed-waveguide-grating(AWG) routers, the time-spreading and free-spectral-range(FSR) group hopping code, which embedded maximum lengthsequence (I.e., called TS/GH embedded M-sequence code) isconfigured over fiber-to-the-home (FTTH) network. In thisstudy, the proposed codeword, which integrated time andspectral (wavelength) domain, is constructed as the same primecode sequence and therefore is referred as two-dimension (2-D)optical codes. Importantly, for the proposed broadband lightsource (BLS), the total number of available wavelengths ispartitioned into the different groups G based on the M-sequencecode length. Every group is referred as hoppingpattern and characterized by the FSR interval of AWG router.To improve the prime-hop code (PHC) and modified prime-hopcode (MPHC) of 2-D OCDMA system with cascading oneadditional AWG router, the cardinality of proposed scheme issignificantly increased by the factor of 15 times under theoptimum arrangement for group hopping number of G=7.Moreover, the correlation property and bit error rate (BER) ofproposed scheme is evaluated and the result reveals that theBER of proposed scheme is better than MPHC and PHC.
Yao-Tang Chang Jen-Fa Huang Kai-Chun Hsu Li-Wei Chou
National Communications Commission；Institute of Computer and Communications，Department of Electrical Institute of Computer and Communications,Department of Electrical Engineering, National Cheng Kung U
国际会议
2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)
日本福冈
英文
2007-07-11（万方平台首次上网日期，不代表论文的发表时间）