NDLI: Optimal OFDM pilot sequences for time-delay and channel estimation based on the expected CRB for a large number of subcarriers

Content Provider	IEEE Xplore Digital Library
Author	Shahmansoori, A. Montalban, R. Seco-Granados, G.
Copyright Year	2014
Description	Author affiliation: Univ. Autonoma de Barcelona, Bellaterra, Spain (Shahmansoori, A.; Montalban, R.; Seco-Granados, G.)
Abstract	A key aspect to design an OFDM system for combined positioning and high-data-rate communications is to find optimal data and pilot power allocations. Previous work has investigated the capacity maximizing design taking into account the effects of channel and time-delay estimation for finite number of subcarriers and channel taps. In this paper, we propose a method based on the asymptotic expected Cramér-Rao bound of joint time-delay and channel coefficients that reduces the complexity of the bounds by increasing the number of subcarriers or channel taps for data and pilot power allocations design. Specifically, for long channels a general form of matrix inversion, which is computationally complex, is converted to only the inversion at strong eigenvalues or pilots. Numerical results show that as the number of subcarriers increases, the non-asymptotic bounds converge to the asymptotic bounds at a fast speed. Moreover, even for a finite number of subcarriers or channel taps the difference between joint data and pilot power allocations is negligible compared to the non-asymptotic expected Cramér-Rao bounds.
Starting Page	90
Ending Page	94
File Size	285087
Page Count	5
File Format	PDF
ISBN	9781479949038
DOI	10.1109/SPAWC.2014.6941323
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-22
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	OFDM Channel estimation Joints Estimation Resource management Signal processing Wireless communication joint design of data and pilot power allocations Combined positioning and communications channel and time-delay estimation asymptotic expected Cramér-Rao bound
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

Design of OFDM sequences for joint communications and positioning based on the asymptotic expected CRB

Optimal OFDM Pilot Sequences for Time-Delay and Channel Estimation Based on the Expected CRB for a Large Number of Subcarriers

Performance Bounds for MIMO-OFDM Channel Estimation

Bayesian Cramér-rao Bound for channel estimation in cooperative OFDM

Channel, Phase Noise, and Frequency Offset in OFDM Systems: Joint Estimation, Data Detection, and Hybrid Cramér-Rao Lower Bound

Near the Cramér–Rao Bound Precoding Algorithms for OFDM Blind Channel Estimation

Joint CFO and Channel Estimation for Multiuser MIMO-OFDM Systems With Optimal Training Sequences

Analytical Analysis of Bayesian CramÉr–Rao Bound for Dynamical Rayleigh Channel Complex Gains Estimation in OFDM System

CRB for Carrier Frequency Offset Estimation with Pilot and Virtual Subcarriers

Optimal OFDM pilot sequences for time-delay and channel estimation based on the expected CRB for a large number of subcarriers

Similar Documents

Design of OFDM sequences for joint communications and positioning based on the asymptotic expected CRB

Optimal OFDM Pilot Sequences for Time-Delay and Channel Estimation Based on the Expected CRB for a Large Number of Subcarriers

Performance Bounds for MIMO-OFDM Channel Estimation

Bayesian Cramér-rao Bound for channel estimation in cooperative OFDM

Channel, Phase Noise, and Frequency Offset in OFDM Systems: Joint Estimation, Data Detection, and Hybrid Cramér-Rao Lower Bound

Near the Cramér–Rao Bound Precoding Algorithms for OFDM Blind Channel Estimation

Joint CFO and Channel Estimation for Multiuser MIMO-OFDM Systems With Optimal Training Sequences

Analytical Analysis of Bayesian CramÉr–Rao Bound for Dynamical Rayleigh Channel Complex Gains Estimation in OFDM System

CRB for Carrier Frequency Offset Estimation with Pilot and Virtual Subcarriers

Optimal OFDM pilot sequences for time-delay and channel estimation based on the expected CRB for a large number of subcarriers