用部分传输序列方法降低实数OFDM信号峰均值比
doi: 10.3724/SP.J.1146.2005.00720
Peak-to-Average Power Ratio Reduction in Real-Valued OFDM Systems Using PTS Method
-
摘要: 该文分析了部分传输序列方法(PTS)用于降低实数OFDM信号峰均值比(PAPR)时存在的问题，分别研究并提出用于降低实数OFDM信号PAPR的相邻分割PTS(APTS)及交织分割PTS(IPTS)具体实现方法。仿真结果表明，APTS和IPTS能够有效降低信号的PAPR；在相同待选传输序列情况下，APTS算法性能与IPTS算法基本相当；APTS算法需要多次的IDFT运算，而IPTS仅需要一次IDFT运算。Abstract: This paper firstly discusses the problem when using Partial Transmit Sequence (PTS) in the Peak-to-Average Power Ratio (PAPR) reduction of real-valued OFDM systems.Secondly, the Adjacent-partition PTS (APTS) and Interleaved-partition PTS (IPTS) are proposed for real-valued OFDM systems. The simulation results confirm the effectiveness of APTS and IPTS in PAPR reduction for real value OFDM systems.
-
[1] Han Seung Hee and Lee Jae Hong. An overview of peak-to-average power ratio reduction techniques for multicarrier transmission[J].IEEE Wireless Communication.2005, 12(2):56-65 [2] Batra A, et al.. Multi-band OFDM physical layer proposal for IEEE 802.15 Task Group 3a. Sep.14, 2004, www. multibandofdm.org/papers/MultiBand_OFDM_Physical_Layer_Proposal_for_IEEE_802.15.3a_Sept_04.pdf [3] Yu Hua, Chen Min, and Wei Gang. Distribution of PAR in DMT systems[J].Electronics Letters.2003, 39(10):799-801 [4] Mcstdagh D J G and Spruyt P M P. A method to reduce the probability of clipping in DMT-based transceivers[J].IEEE Trans. on Communications.1996, 44(10):1234-1238 [5] Davis J A and Jedwab J. Peak-to-mean power control and error correction for OFDM transmission using Golay sequences and Reed-Muller codes[J].Electronics Letters.1997, 33(4):267-268 [6] Marco B, Stefan H M W, and Johannes B H. SLM peak-power reduction without explicit side information[J].IEEE Communications Letters.2001, 5(6):239-241 [7] Muller S H and Huber J B. OFDM with reduced peak to average power ratio by optimum combination of partial transmit sequences[J].Electronics Letters.1997, 33(5):368-369 [8] Kim Kang S G and Joo E K. A novel subblock partition scheme for partial transmit sequence OFDM[J].IEEE Trans. on Broadcasting.1999, 45(3):333-338 [9] 卢光跃, 邵朝, 周诠. OFDM系统新的无损峰均值比降低方案.通信学报, 2005, 26(8): 51-56. [10] Gatherer A and Polley M. Controlling clipping probability in DMT transmission.Proc. Asilomar Conf. on Signals, Systems, and Computer, Pacific Grove, Calif., USA, Nov 1997, Vol.1: 578-584. -
计量
- 文章访问数: 3288
- HTML全文浏览量: 96
- PDF下载量: 943
- 被引次数: 0
下载:
