Mitigation of environmental temperature variation effects in OCDMA networks using PSO power control

In this paper, a mitigation of environmental temperature variation effects in optical code division multiple access (OCDMA) networks based on power control is described. The temperature changes would adversely affect 2D wavelength-hopping time-spreading optical code by causing a reduction in the expected height of the autocorrelation peak. Environmental temperature variation is usually difficult to accurately determine and compensate for due to its dynamic nature and fluctuations. Furthermore, the power control strategy allows the regulation of the transmitted power in order to dynamically mitigate the effects of temperature variation. The particle swarm optimization (PSO) algorithm is evocated to solve the problem of power control based on the signal-to-noise plus interference ratio optimization to mitigate the environmental effects. Afterward, numerical results are discussed taking into account the code parameters, such as the code weight and spectral spacing.