The emergence of both multiple-input-multiple-output (MIMO) systems and Orthogonal-Frequency-Division-Multiplexing (OFDM) is crucial to the recent rapid development of wireless communication, especially cellular communication. However, this MIMO-OFDM system inherits a significant disadvantage of using OFDM: the high peak-to-average-power ratio (PAPR). Thus, this paper proposes a hybrid PAPR reduction technique that combines three techniques: convolutional code, successive suboptimal cross-antenna rotation, inversion (SS-CARI), and modified companding. Results from the study show that a constraint length of four with a code rate of 1/4 is the value of parameters that maintains PAPR for the convolutional coding techniques, and 16 is the number of subblocks with the best PAPR performance for the SS-CARI technique. Finally, the parameter value that has the best PAPR performance for the µ-law companding technique is 255 for the companding parameter, one for the peak ratio (PR). Compared to the system without PAPR reduction schemes, this hybrid PAPR reduction scheme can reduce the PAPR by around 65.22% at the Complementary Cumulative Density Function (CCDF) of 10–3.
Hybrid PAPR Reduction Schemes for MIMO-OFDM System
Advances in Engineering res
Proceedings of the Multimedia University Engineering ; 2022 ; Cyberjaya and Melaka, Malaysia July 25, 2022 - July 27, 2022
Proceedings of the Multimedia University Engineering Conference (MECON 2022) ; Chapter : 24 ; 245-263
2022-12-23
19 pages
Article/Chapter (Book)
Electronic Resource
English
Multiple-input-multiple-output (MIMO) , Orthogonal-Frequency-Division-Multiplexing (OFDM) , peak-to-average-power ratio (PAPR) , Complementary Cumulative Density Function (CCDF) Engineering , Robotics and Automation , Control, Robotics, Mechatronics , Mechanical Engineering , Electrical Engineering , Communications Engineering, Networks