Archive > Volume 11 Issue 5 > 2015,11(5):375-378. DOI:10.1007/s11801-015-5112-0 CSTR:[cstr] Prev Next
A novel TS-EIA-PTS PAPR reduction algorithm for optical OFDM systems
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Abstract:
Because the partial transmit sequence (PTS) peak-to-average power ratio (PAPR) reduction technology for optical orthogonal frequency division multiplexing (O-OFDM) systems has higher computational complexity, a novel two-stage enhanced-iterative-algorithm PTS (TS-EIA-PTS) PAPR reduction algorithm with lower computational complexity is proposed in this paper. The simulation results show that the proposed TS-EIA-PTS PAPR reduction algorithm can reduce the computational complexity by 18.47% in the condition of the original signal sequence partitioned into 4 sub-blocks at the remaining stage of n−d=5. Furthermore, it has almost the same PAPR reduction performance and the same bit error rate (BER) performance as the EIA-PTS algorithm, and with the increase of the subcarrier number, the computational complexity can be further reduced. As a result, the proposed TS-EIA-PTS PAPR reduction algorithm is more suitable for the practical O-OFDM systems.
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This work has been supported by the National Natural Science Foundation of China (Nos.61472464 and 61471075), the Program for Innovation
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