华侨大学学报(自然科学版)
華僑大學學報(自然科學版)
화교대학학보(자연과학판)
JOURNAL OF HUAQIAO UNIVERSITY(NATURAL SCIENCE)
2014年
5期
493-498
,共6页
多载波调制%正交小波包复用%峰值平均功率比%阈值限幅%部分传输序列
多載波調製%正交小波包複用%峰值平均功率比%閾值限幅%部分傳輸序列
다재파조제%정교소파포복용%봉치평균공솔비%역치한폭%부분전수서렬
multicarrier modulation%orthogonal wavelet packet multiplexing%peak to average power ratio%threshold clipping%partial transmit sequence
针对阈值限幅法误码率极大和部分传输序列(PTS)技术复杂度高的问题,提出一种改进的基于阈值限幅和PTS技术的正交小波包复用(OWPM)系统高峰均功率比(PAPR)降低方法。仿真结果表明:改进后的算法性能得到提升,且经阈值限幅法和 PTS技术联合处理后,能够在尽量不影响原系统误码率性能的前提下,更好地降低系统PAPR值,同时也降低了系统计算复杂度。
針對閾值限幅法誤碼率極大和部分傳輸序列(PTS)技術複雜度高的問題,提齣一種改進的基于閾值限幅和PTS技術的正交小波包複用(OWPM)繫統高峰均功率比(PAPR)降低方法。倣真結果錶明:改進後的算法性能得到提升,且經閾值限幅法和 PTS技術聯閤處理後,能夠在儘量不影響原繫統誤碼率性能的前提下,更好地降低繫統PAPR值,同時也降低瞭繫統計算複雜度。
침대역치한폭법오마솔겁대화부분전수서렬(PTS)기술복잡도고적문제,제출일충개진적기우역치한폭화PTS기술적정교소파포복용(OWPM)계통고봉균공솔비(PAPR)강저방법。방진결과표명:개진후적산법성능득도제승,차경역치한폭법화 PTS기술연합처리후,능구재진량불영향원계통오마솔성능적전제하,경호지강저계통PAPR치,동시야강저료계통계산복잡도。
Aiming at the problem of large BER for the threshold clipping method and the high computational complexity for partial transmit sequence (PTS)technology,an improved peak to average power ratio (PAPR)reduction method based on the threshold clipping and PTS technology for orthogonal wavelet packet multiplexing (OWPM)system is put forward in the paper.Simulation results show that the improved algorithm compared with the original algorithm has the corresponding performance improvement,and by the combined treatment with threshold clipping method and PTS tech-nology,in the premise of not affectting the original system BER performance,better reduce the system PAPR value, while reducing system computational complexity.