NDLI: HPA nonlinearities mitigation by joint predistorter and constellation rotation using MIMO communication systems

Content Provider	IEEE Xplore Digital Library
Author	Jan, L. Zafar, M.H. Ahmed, I. Babar, M.I. Mahmud, S.A. Khan, G.M. Gilani, S.R.
Copyright Year	2014
Description	Author affiliation: Salman bin Abdul-Aziz Univ., Al-kharj, Saudi Arabia (Ahmed, I.) \|\| Iqra Nat. Univ., Peshawar, Pakistan (Jan, L.) \|\| Univ. of Eng. & Technol., Peshawar, Pakistan (Zafar, M.H.; Babar, M.I.; Mahmud, S.A.; Khan, G.M.; Gilani, S.R.)
Abstract	Nonlinearities in wireless communication channels foil the performance of the communication systems either at the transmitter or receiver end. This paper explains the concept of the transmitter-side nonlinearities that are induced by the High Power Amplifiers (HPA), the final stage at the transmitter side of the communication system. HPA nonlinearities create in-band and out-of-band distortions in wireless communication systems. The in-band distortion results in the degradation of overall performance of Bit Error Rate (BER) and the capacity of the mobile operations. On the other hand, out-of-band distortion creates the spectral broadening effects that degrade the performance of other operators usually operate in the near bands. This paper presents a novel method for the mitigation of HPA nonlinearities by joint predistorter and constellation rotation in Multiple-Input Multiple-Output (MIMO) wireless communication systems. The results reveal that the joint nonlinearity compensation technique in MIMO communications system enhances the overall error rate performance of the system. Furthermore to exploit the benefits of proposed technique; Symbol Error Rate (SER) curves for the MIMO multiplexing and Alamouti Space Time Block Codes (STBC) are presented with improvements in their signal to noise ratio.
Sponsorship	IEEE Commun. Soc.
Starting Page	1
Ending Page	6
File Size	383238
Page Count	6
File Format	PDF
ISBN	9781479912971
DOI	10.1109/WTS.2014.6835026
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-04-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Symbol Error Rate Error analysis Receivers Space Time Block Codes MIMO Vectors High Power Amplifiers Multiple-Input Multiple-Output Phase distortion
Content Type	Text
Resource Type	Article

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