NDLI: Effectiveness of tone-reservation using null subcarriers (TR-NS) in WiMAX systems

Content Provider	IEEE Xplore Digital Library
Author	Gang Wu Su Hu Shao-Qian Li Yong Liang Guan Choi Look Law
Copyright Year	2007
Description	Author affiliation: Univ. of Electron. Sci. & Technol. of China, Chengdu (Gang Wu; Su Hu; Shao-Qian Li)
Abstract	In this paper, we propose a modified tone reservation method to reduce peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) system by using null subcarriers (TR-NS), and evaluate its performance under physical layer model of IEEE standard 802.16d-2004, i.e., WiMAX systems. We first verified that the spectrum of transmitted OFDM signals processed by TR-NS method with a small number of null subcarriers do not violate the spectrum mask specified in ETSI standard. Furthermore, we explored that the gain from TR-NS method increase slightly with the number of null subcarriers, but the TR-NS method is efficient in certain extent in terms of both complementary cumulative probability function and total degradation. Additionally we found that an "efficient PAPR" [1] definitively exist for the proposed TR-NS method, where a lower predefined PAPR threshold can not promise a better peak-power reduction gain. It is worthy noting that this result differs from that of TR using arbitrary reserved tones in the literature. Finally, we compared proposed TR-NS method with clipping-like methods in terms of total degradation to show the effectiveness of the TR-NS method by simulation, in which nonlinearity distortion due to high-power amplifiers is introduced.
Starting Page	296
Ending Page	300
File Size	632210
Page Count	5
File Format	PDF
ISBN	9781424414734
DOI	10.1109/ICCCAS.2007.6250058
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-11
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation IEEE 802.16 Standards Peak to average power ratio WiMAX Vectors
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in