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IntroductionPassive optical network( PON) ,typically con-sisting of an opticalline terminal( OLT) atnetworkside,a common feeder fiber,a1×N star coupler( SC) ,N distribution fiber and N optical networkunits( ONU) at user side,is the most attractivecandida… 相似文献
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IntroductionWDM passive optical network (PON) is an at-tractive solution for future broadband access net-work in that it offers the potential of large capaci-ty, network security and data transparency[1]WDM PON connects the optical line terminal( OLT ) with multiple optical network units(ONU) through a splitter. The OLT has an arrayof m fixed-tuned transceivers, each tuned to a dif-ferent wavelength. Each ONU is equipped withone fixed transmitter (control channel) and onetunable trans… 相似文献
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A novel restoration scheme, Parted Path Shared Restoration (PPSR), was proposed. The major idea of PPSR is the strategy of ‘parted disposal‘. PPSR keeps the advantage of Path Based Shared Restoration (PBSR) in utilization of capacity. In addition, the restoration time of PPSR is much less than that of PBSR. Furthermore, a satisfaction function was proposed to estimate the performance of PPSR. This function takes the utilization of capacity and restoration time, into a harmonious and uniform frame. Through theoretical analysis and computer simulation, the performance of PPSR was demonstrated. 相似文献
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