Optimisation of PTS technique for PAPR reduction in MIMO-OFDM-based CRNS Online publication date: Wed, 02-Oct-2019
by Sharanjit Kaur; Inderdeep Kaur Aulakh
International Journal of Systems, Control and Communications (IJSCC), Vol. 10, No. 4, 2019
Abstract: In CRNs, the available spectrum has to be shared between various users, OFDM has a feature that supports multiuser access by assigning subcarriers to different users. In wireless transmissions, PAPR is the key challenge in OFDM that affects the BER. In this paper, the main focus is on PTS. The drawback of existing PTS technique is that the number of multiplications of IFFT sub-sequences with the phase vectors required in it are very high. To reduce computational complexity, optimisation is performed. BPSO is used to find optimised phase vector. This phase vector will be one having reduced PAPR. The purpose is to find out the absolute convergence of MIMO multiplexing to reduce the internal phase to phase PAPR in cognitive radio based networks. Results show that in case of PTS-BPSO error reduces at higher rate with less PAPR. BER is reduced at different SNR values as compared to conventional approach.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Systems, Control and Communications (IJSCC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook