Abstract
In this paper, an extended 2D multi-weight multi-length optical orthogonal code (MWML-OOC) is proposed and analyzed using both Poisson and Binomial distributions of multiple access interference (MAI). We also analyze the performance of 1D and 2D MWML-OOC that can support multirate transmission and quality of services (QoS) differentiation in the optical code-division multiple-access (OCDMA) networks. The theory of the 1D MWML-OOC is reviewed where its bit-error rate (BER) performance analysis based on Binomial model of MAI using convolution technique is presented and compared with the original Poisson model. The results indicated that the overall performance referred to as BER considering Binomial distribution of MAI is better improved than that obtained from Poisson modelled MAI for both 1D and 2D MWML-OOCs. It is also found that the extended 2D MWML-OOC can support a greater number of users with reduced chip-times and highly improve the BER performance compared with its 1D and 2D counterpart
| Original language | English |
|---|---|
| Article number | 5 |
| Pages (from-to) | 524-531 |
| Number of pages | 8 |
| Journal | Journal of Optical Communications and Networking |
| Volume | 5 |
| Issue number | 5 |
| Publication status | Published - 1 May 2013 |
Keywords
- 1D codes, 2D codes, multi-rate, QoS differentiation, Poisson model, Binomial distribution, optical CDMA