Peak-to-average power ratio reduction in OFDM based on transformation of partial transmit sequences
نویسندگان
چکیده
A novel scheme (transformation of partial transmit sequences, T-PTS) is proposed for the partial transmit sequence (PTS) method to reduce peak-to-average power ratio of OFDM signals. In T-PTS certain transformations are applied on partial transmit sequences to generate more candidates for increasing performance. Simulations show that T-PTS outperforms conventional PTS for the same number of subblocks; and both schemes have similar performance for the same candidate number, but T-PTS is less complex.
منابع مشابه
Ofdm with Reduced Peak{to{average Power Ratio by Optimum Combination of Partial Transmit Sequences Indexing Terms: Multicarrier Modulation (mcm) Orthogonal Frequency Division Multiplexing (ofdm) Peak{to{average Power Ratio, Crest Factor
| The authors propose a very eeective and exible peak power reduction scheme for Orthogonal Frequency Division Multiplexing (OFDM) with almost vanishing redundancy. This new method works with arbitrary numbers of subcarriers and unconstrained signal sets. The core of the proposal is to combine partial transmit sequences (PTS) to minimize the peak{to{ average power ratio distortionless.
متن کاملPeak to Average Power Ratio (papr) Reduction Techniques for Ofdm-mimo System
In the previous chapter, to get high data rate transmission, High Throughput techniques were analyzed for OFDM-MIMO System. OFDMMIMO systems based on OFDM symbols suffer from the problem of inherent Peak to Average Power Ratio (PAPR). The peak power of a multi carrier OFDM signal is a critical design factor for band limited communication systems, and it is necessary to reduce it as much as poss...
متن کاملAn Efficient Scheme for PAPR Reduction of OFDM based on Selected Mapping without Side Information
Orthogonal frequency division multiplexing (OFDM) has become a promising method for many wireless communication applications. However, one main drawback of OFDM systems is the high peak-to-average power ratio (PAPR). Selected mapping (SLM) is a well-known technique to decrease the problem of high PAPR in OFDM systems. In this method, transmitter is obliged to send some bits named side informati...
متن کاملBelief Propagation Based Combined Decoding Scheme for LDPC-coded OFDM with PTS as PAPR Reduction
This paper proposes belief propagation based combined decoding scheme for low-density parity-check (LDPC)-coded orthogonal frequency-division multiplexing (OFDM) system with a peak-to-average power ratio (PAPR) reduction using the partial transmit sequence (PTS), which does not transmit PTS side information about the phase factors. Keywords— Belief Propagation (BP), Partial Transmit Sequence (P...
متن کاملPAR reduction of an OFDM signal using partial transmit sequences
The peak-to-average power ratio (PAR) of an orthogonal frequency division multiplexing (OFDM) signal can be substantially larger than that of a single carrier system. Partial transmit sequence (PTS) combining can improve the PAR statistics of an OFDM signal. For PTS, the search complexity increases exponentially with the number of subblocks. Here, we present a new algorithm for computing the ph...
متن کامل