Baig, I. and Jeoti, V. (2012) A new DCT matrix precoding based RI-OFDMA uplink system for PAPR reduction. In: UNSPECIFIED.
Full text not available from this repository.Abstract
High peak-to-average power ratio (PAPR) is one of the major drawbacks in the transmitted random-interleaved orthogonal frequency division multiple access (RI-OFDMA) uplink signal. The PAPR increases the complexity of analogue-to-digital (A/D) and digital-to-analogue (D/A) convertors and also reduces the efficiency of RF high-power-amplifier (HPA). This paper presents a new Discrete-Cosine transform matrix (DCTM) precoding based RI-OFDMA uplink system for high PAPR reduction. Computer simulation results show that the proposed precoding based uplink system has low PAPR as compare to those of the Walsh-Hadamard transform (WHT) precoding based RI-OFDMA uplink systems and the conventional RI-OFDMA uplink systems respectively. Additionally, the biterror-rate (BER) performance of the proposed uplink system is much better than the conventional RI-OFDMA uplink systems and at par with the WHT precoded RI-OFDMA uplink systems. Therefore, such a good improvements in both PAPR and BER offered by the proposed precoding based uplink system can notably reduce the cost and complexity of the uplink transmitter. © 2011 IEEE.
Item Type: | Conference or Workshop Item (UNSPECIFIED) |
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Additional Information: | cited By 2; Conference of 2012 4th International Conference on Intelligent and Advanced Systems, ICIAS 2012 ; Conference Date: 12 June 2012 Through 14 June 2012; Conference Code:93534 |
Uncontrolled Keywords: | Orthogonal frequency division multiple access; PAPR reduction; Peak to average power ratio; Precoding; Transform matrices; Up-link signals; Uplink systems; Walsh-Hadamard transform, Analog to digital conversion; Computer simulation; Cosine transforms, Frequency division multiple access |
Depositing User: | Mr Ahmad Suhairi UTP |
Date Deposited: | 09 Nov 2023 15:50 |
Last Modified: | 09 Nov 2023 15:50 |
URI: | https://khub.utp.edu.my/scholars/id/eprint/2723 |