NDLI: Binary adaptive coded pilot symbol assisted modulation over Rayleigh fading channels without feedback

Content Provider	IEEE Xplore Digital Library
Author	Abou-Faycal, I. Medard, M. Madhow, U.
Copyright Year	1972
Abstract	Pilot symbol assisted modulation (PSAM) is a standard approach for transceiver design for time-varying channels, with channel estimates obtained from pilot symbols being employed for coherent demodulation of the data symbols. In this paper, we show that PSAM schemes can be improved by adapting the coded modulation strategy at the sender to the quality of the channel measurement at the receiver, without requiring any channel feedback from the receiver. We consider performance in terms of achievable rate for binary signaling schemes. The transmitter employs interleaved codes, with data symbols coded according to their distance from the nearest pilot symbols. Symbols far away from pilot symbols encounter poorer channel measurements at the receiver and are therefore coded with lower rate codes, while symbols close to pilot symbols benefit from recent channel measurements and are coded with higher rate codes. The performance benefits from this approach are quantified in the context of binary signaling over time-varying Rayleigh fading channels described by a Gauss-Markov model. The spacing of the pilot symbols is optimized to maximize the mutual information between input and output in this setting. Causal and noncausal channel estimators of varying complexity and delay are considered. It is shown that, by appropriate optimization for the spacing between consecutive pilot symbols, the adaptive coding techniques proposed can improve achievable rate, without any feedback from the receiver to the sender. Moreover, channel estimation based on the two closest pilot symbols is generally close to optimal.
Starting Page	1036
Ending Page	1046
Page Count	11
File Size	513913
File Format	PDF
ISSN	00906778
Volume Number	53
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Modulation coding Fading Feedback Delay estimation Transceivers Time-varying channels Demodulation Transmitters Interleaved codes Gaussian channels time-varying channels Adaptive modulation fading channels Gauss–Markov pilot symbol assisted modulation Rayleigh fading
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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

Adaptive bit-interleaved coded modulation

Adaptive Bit-Interleaved Coded OFDM With Reduced Feedback Information

Model-based pilot and data power adaptation in psam with periodic delayed feedback

Pilot-symbol-assisted LDPC coded BICM over correlated Rayleigh fading channels

Symbol-level adaptive modulation for coded OFDM on block fading channels

Performance analysis of variable rate: symbol-by-symbol adaptive bit interleaved coded modulation for Rayleigh fading channels

On the design of adaptive space-time codes

Two-Dimensional Space–Time Pilot-Symbol-Assisted Demodulation for Frequency-Nonselective Rayleigh Fading Channels

Trellis-coded differential unitary space-time modulation over flat fading channels

Binary adaptive coded pilot symbol assisted modulation over Rayleigh fading channels without feedback

Similar Documents

Adaptive bit-interleaved coded modulation

Adaptive Bit-Interleaved Coded OFDM With Reduced Feedback Information

Model-based pilot and data power adaptation in psam with periodic delayed feedback

Pilot-symbol-assisted LDPC coded BICM over correlated Rayleigh fading channels

Symbol-level adaptive modulation for coded OFDM on block fading channels

Performance analysis of variable rate: symbol-by-symbol adaptive bit interleaved coded modulation for Rayleigh fading channels

On the design of adaptive space-time codes

Two-Dimensional Space&#8211;Time Pilot-Symbol-Assisted Demodulation for Frequency-Nonselective Rayleigh Fading Channels

Trellis-coded differential unitary space-time modulation over flat fading channels

Binary adaptive coded pilot symbol assisted modulation over Rayleigh fading channels without feedback

Two-Dimensional Space–Time Pilot-Symbol-Assisted Demodulation for Frequency-Nonselective Rayleigh Fading Channels