doi: 10.18178/ijfcc.2016.5.1.443
Performance of Parallel Interference Cancellation Scheme in VW-OCDMA Systems
Wei Liang
,
Jun Li
,
Yi Zhang
,
Jingling Li
,
Jiayuan Wei
- National Key Laboratory of Science and Technology on space Microwave, China Academy of Space Technology (Xi‟an), Xi‟an, 710100, China.
Abstract
To support multi-service and guarantee quality ofservice, variable-weight code is needed in OCDMA system.However, such codes suffer from high cross-correlationproducts which create high multiple access interference (MAI)that significantly reduces the capacity of the system. To mitigateMAI, In this paper, we study the Parallel InterferenceCancellation (PIC) receiver efficiency in Variable-WeightOCDMA (VW-OCDMA). We develop the analytical expressionof the error probability with variable-weight optical orthogonalcode for one stage PIC receiver. Furthermore, the system hasbeen tested for five users. Simulation results show that by usingPIC receiver we obtain good performance in VW-OCDMAsystem, and the highest priority user can be assigned to acodeword with the largest weights to guarantee the lowest biterror rate.
Keywords
- OCDMA
- variable-weight optical orthogonalcodes
- multiple access interference
- parallel interferencecancellation
How to Cite
Wei Liang, Jun Li, Yi Zhang, Jingling Li, and Jiayuan Wei, "Performance of Parallel Interference Cancellation Scheme in VW-OCDMA Systems," International Journal of Future Computer and Communication, vol. 5, no. 1, pp. 53-56, 2016. https://doi.org/ 10.18178/ijfcc.2016.5.1.443
Copyright & License
Copyright © 2016 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).