DocumentCode
1292439
Title
Nested Polar Codes for Wiretap and Relay Channels
Author
Andersson, Mattias ; Rathi, Vishwambhar ; Thobaben, Ragnar ; Kliewer, Jörg ; Skoglund, Mikael
Author_Institution
ACCESS Linnaeus Center, R. Inst. of Technol. (KTH), Stockholm, Sweden
Volume
14
Issue
8
fYear
2010
fDate
8/1/2010 12:00:00 AM
Firstpage
752
Lastpage
754
Abstract
We show that polar codes asymptotically achieve the whole capacity-equivocation region for the wiretap channel when the wiretapper´s channel is degraded with respect to the main channel, and the weak secrecy notion is used. Our coding scheme also achieves the capacity of the physically degraded receiver-orthogonal relay channel. We show simulation results for moderate block length for the binary erasure wiretap channel, comparing polar codes and two edge type LDPC codes.
Keywords
channel capacity; channel coding; LDPC codes; binary erasure wiretap channel; moderate block length; nested polar codes; receiver-orthogonal relay channel; weak secrecy notion; wiretap channels; Block codes; Channel capacity; Councils; Decoding; Degradation; Encoding; Entropy; Error probability; Memoryless systems; Parity check codes; Polarization; Relays; Strontium; Polar codes; decode-and-forward; relay channel; wiretap channel;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2010.08.100875
Filename
5545658
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