NDLI: Iterative Cross-layer Decoder for WiMAX Using Hybrid-ARQ

Content Provider	IEEE Xplore Digital Library
Author	Ur-Rehman, O. Zivic, N.
Copyright Year	2012
Abstract	Hybrid Automatic Repeat Request is used as an error control and recovery mechanism in IEEE 802.16. Many different performance improvements over the standard error control mechanism have been proposed. One such improvement [1] considers the synergy between the MAC and PHY layers and proposes an adaptive fragmentation scheme, whereby the fragmentation is done only at the MAC layer at high bit error rates. This avoids duplicate fragmentations and enhances the throughput. In this paper, an enhancement over [1] is proposed by introducing a cross-layer decoding approach. In case of decoding failure at the PHY layer, the packets are not discarded rather passed on to the MAC layer along with the side information, i.e., the bit reliabilities, from the decoder at the PHY. MAC layer performs an additional decoding effort in the form of iterative decoding on such erroneous packets based on these bit reliabilities. Simulation results are presented showing a considerable coding gain at different values of Eb/N0. The packet error rate is improved with this method and therefore the retransmission of packets is reduced.
Starting Page	1158
Ending Page	1161
File Size	460814
Page Count	4
File Format	PDF
ISBN	9781467321648
DOI	10.1109/HPCC.2012.169
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-25
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cross-layer decoding IEEE 802.16 IEEE 802.16 Standards Receivers WiMAX HARQ Decoding Reliability Automatic repeat request Iterative decoding
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

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