Multicarrier modulation with low PAR: applications to DSL and wireless
Multicarrier modulation with low PAR: applications to DSL and wireless
OFDM for Wireless Multimedia Communications
OFDM for Wireless Multimedia Communications
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
International Journal of Communication Systems
An overview of peak-to-average power ratio reduction techniques for multicarrier transmission
IEEE Wireless Communications
Pre-scrambling method for PAPR reduction in OFDM communication systems
IEEE Transactions on Consumer Electronics
New hybrid of PTS-CAPPR methods using GA for PAPR reduction in OFDM systems
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
| Hi-index | 0.01 |
In this paper, we propose a new PAPR reduction by using the hybrid of a partial transmit sequences (PTS) and an adaptive peak power reduction (APPR) methods with coded side information (SI) technique. These methods are used in an Orthogonal Frequency Division Multiplexing (OFDM) system. The OFDM employs orthogonal sub-carriers for data modulation. These sub-carriers unexpectedly present a large Peak to Average Power Ratio (PAPR) in some cases. In order to reduce PAPR, the sequence of input data is rearranged by PTS. The APPR method is also used to controls the peak level of modulation signals by an adaptive algorithm. A proposed reduction method consists of these two methods and realizes both advantages at the same time. In order to make the optimum condition on PTS for PAPR reduction, a quite large calculation cost must be demanded and thus it is impossible to obtain the optimum PTS. In the proposed method, by using the pseudo-optimum condition with a coded SI technique, the total calculation cost becomes drastically reduced. In simulation results, the proposed method shows the improvement on PAPR and also reveals the high performance on bit error rate (BER) of an OFDM system.