现代计算机（专业版）
現代計算機（專業版）
현대계산궤（전업판）
MODERN COMPUTER
2013年
23期
3-6
,共4页
正交频分复用(OFDM)%峰均功率比%选择性映射(SM)%部分传输序列(PTS)
正交頻分複用(OFDM)%峰均功率比%選擇性映射(SM)%部分傳輸序列(PTS)
정교빈분복용(OFDM)%봉균공솔비%선택성영사(SM)%부분전수서렬(PTS)
OFDM%PAPR(Peak-to-Average Power Ratios)%SM(Selective Mapping)%PTS(Partial Transmit Sequence)
对用于降低OFDM系统的峰均功率比的选择性映射SLM和部分传输序列PTS两种技术进行分析研究，并进行相应的仿真。仿真结果表明PTS方法的性能要优于SLM方法，且PTS方法中随着支路数的增加，PAPR 性能越好。
對用于降低OFDM繫統的峰均功率比的選擇性映射SLM和部分傳輸序列PTS兩種技術進行分析研究，併進行相應的倣真。倣真結果錶明PTS方法的性能要優于SLM方法，且PTS方法中隨著支路數的增加，PAPR 性能越好。
대용우강저OFDM계통적봉균공솔비적선택성영사SLM화부분전수서렬PTS량충기술진행분석연구，병진행상응적방진。방진결과표명PTS방법적성능요우우SLM방법，차PTS방법중수착지로수적증가，PAPR 성능월호。
Based on the definition of the PAPR in OFDM systems, investigates the PAPR reduction performance with two different PAPR reduction methods: the SLM and PTS. Conducts comprehensive analysis and comparison in terms of all possible influencing factors and PAPR re-duction performance, respectively. Obtains some research findings based on the simulation results. The results verify that PTS method provides a better PAPR reduction performance compared to SLM method and the probability of high PAPR with increasing the number of sub-blocks in PTS technique decreases obviously, compared to the original OFDM signal. In addition, SLM algorithm is more suitable if system can tolerate more redundant information;otherwise, PTS algorithm is more acceptable when complexity becomes the first consider-ing factor.
