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- W2356110188 abstract "Based on Gamma-Gamma atmospheric turbulence channel,the bit error rate(BER)performance of wireless optical communication system with pulse position modulation(PPM)is analyzed.The closed-form expression of average BERis derived theoretically.The formula is suitable for a wide range of turbulence conditions and any modulation level.Compared with the numerical integral,it can increase the speed of calculation.For a given average BER,the comparative analysis of the relationship between the modulation level and the required average transmitted optical power is done over different turbulence conditions.The results show that under the non-turbulence and weak turbulence channel,PPM yields an average power requirement that decreases with modulation level increasing.However,with the enhancement of turbulence,the effect of saving transmitted optical power becomes weak with the increasing of modulation level.In the strong turbulent regime,increasing modulation level even leads to increasing average transmitted optical power requirements.In actual system design,possible turbulent environment should be considered,and then the right modulation level is selected." @default.
- W2356110188 created "2016-06-24" @default.
- W2356110188 creator A5011485011 @default.
- W2356110188 date "2013-01-01" @default.
- W2356110188 modified "2023-09-25" @default.
- W2356110188 title "BER performance for multi-level pulse position modulation over Gamma-Gamma turbulence channel" @default.
- W2356110188 hasPublicationYear "2013" @default.
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