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| Content Provider | IET Digital Library |
|---|---|
| Author | Xia, Weidong Gan, Chaoqin Xie, Weilun Ma, Shucong |
| Abstract | In the metro-access optical network, bandwidth-allocated mechanism and its algorithm are proposed for the multi-subsystem-based virtual passive optical network (VPON) that can implement the syncretism of multiple systems such as time division multiplexing-PON, wavelength division multiplexing-PON and orthogonal frequency division multiplexing-PON. To avoid frequent bandwidth reallocation, the matrix of bandwidth-demanded variation is introduced. According to the norm of this matrix, admission condition of bandwidth allocation for VPON users is established. To distinguish different bandwidth-demanded variation of multiple subsystems and allocate bandwidth fairly and efficiently for VPON, the bandwidth-allocated scheme is employed. To the increase of VPON's bandwidth demand, the multi-granularity-based bandwidth-allocated algorithm is proposed to promote the admission probability of new VPONs. MATLAB is used to evaluate the performance of the proposed mechanism and algorithm. Considering the representativeness of various situations, the admission condition of bandwidth allocation for VPON users is demonstrated with ten VPONs. The bandwidth-allocated scheme and algorithm are verified effectively in bandwidth-utilised ratio with two original VPONs of high priority and two new VPONs of low priority, as well as in admission probability with four new VPONs. |
| Starting Page | 154 |
| Ending Page | 161 |
| Page Count | 8 |
| ISSN | 17518628 |
| Volume Number | 10 |
| e-ISSN | 17518636 |
| Issue Number | Issue 2, Jan (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/10/2 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0616 |
| Journal | IET Communications |
| Publisher Date | 2016-01-21 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Bandwidth Allocated Mechanism Bandwidth Allocation Bandwidth Demanded Variation MATLAB Metro Access Optical Network Modulation And Coding Method Multiplexing And Switching in Optical Communication Multisubsystem Algorithm OFDM Modulation Optical Fibre Network Orthogonal Frequency Division Multiplexing-PON Passive Optical Network Subrefractive Layer Time Division Multiplexing Time Division Multiplexing PON Virtual Passive Optical Network VPON Wavelength Division Multiplexing Wavelength Division Multiplexing-PON |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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