Performance of PTS Based Firefly Algorithm Scheme for PAPR Reduction in SFBC MIMO OFDM Communication Systems
A combination of multiple input multiple output (MIMO) signal processing with orthogonal frequency division multiplexing (OFDM) is regarded as a promising solution for enhancing the performance of next generation wireless local area network (WLAN) systems. However, like OFDM, one main disadvantage of MIMO OFDM is that the signals transmitted on different antennas might exhibit a prohibitively large peak to average power ratio (PAPR) Partial transmit sequence (PTS) provides attractive PAPR reduction performance in OFDM or MIMO OFDM. Unfortunately, it leads to prohibitively large computational complexity. In this paper, types of low complexity PTS schemes are proposed to reduce the PAPR for MIMO OFDM systems that use Firefly algorithm (FA) and space frequency block codes (SFBC) Simulation results show that FA based on PTS can reduce computational complexity dramatically and achieve better PAPR reduction performance compared to ordinary PTS.
2016 International Symposium on Computer, Consumer and Control (IS3C)