Abstract
The emergence of heterogeneous applications such as internet data, video streaming, and online gaming, brings in a demand for a network environments with capability of supporting diverse Quality of Services (QoS). Prioritizing the services is essential to ensure the delivery of information is at their best. This paper proposes a new code family to support optical domain service differentiation using spectral amplitude coding techniques within an optical code division multiple access (OCDMA) scenario. A particular user or service has a varying weight applied in order to obtain the desired signal quality. The proposed variable-weight code (VW-code) is constructed based on basic multi-service (MS) code. Mathematical model is developed to for performance evaluation of VW-MS code. In addition, the properties of proposed code is compared with other VW-OCDMA codes. It is shown that the proposed VW-MS provide an optimal code length with minimum cross-correlation compared to other VW-codes. Performance of VW-MS designed for triple-play services operating at bit rates of 0.622, 1.25 and 2.5 Gbps is demonstrated.
| Original language | English |
|---|---|
| Pages (from-to) | 53-60 |
| Number of pages | 8 |
| Journal | Optical Fiber Technology |
| Volume | 37 |
| Early online date | 19 Jul 2017 |
| DOIs | |
| Publication status | Published - 1 Sept 2017 |
Keywords
- variable weight code
- optical code-division-multiple-access
- QoS differntiation
- optical fibre communication
- spectral amplitude coding
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