期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2012
卷号：2
期号：11
出版社：S.S. Mishra
摘要：O rthogonal Frequency Division Multiplexing (OFDM) has proven to be the most promising technique for high speed data transmission over a dispersive channel. It is because of its several advantages such a s high spectral efficiency, low implementation complexity, less vulnerability to echoes and non¨Clinear distortion. However, it has few limitations such as peak-to-average-power ratio (PAPR) and bit error rate (BER), which determines the system's power efficiency. This paper addresses the problem of reducing PAPR in OFDM systems. For this purpose, p artial transmit sequence (PTS) is chosen, which has proven to be a promising technique for PAPR reduction in OFDM systems. However in this approach, computation of optimal PTS weight factors via exhaustive search requires exponential complexity in the number of subblocks. Therefore in this paper, an efficient algorithm for computing the optimal PTS weights is introduced with the aim to reduce complexity compared to exhaustive search
关键词：OFDM; Partial Transmit Sequence; Peak -to-Average Power Ratio and Complementary Cumulative ;Distribution Function
