Title :
Polar codes for bidirectional broadcast channels with common and confidential messages
Author :
Andersson, Mattias ; Wyrembelski, Rafael F. ; Oechtering, Tobias J. ; Skoglund, Mikael
Author_Institution :
ACCESS Linnaeus Center, R. Inst. of Technol. (KTH), Stockholm, Sweden
Abstract :
We consider the bidirectional broadcast channel with common and confidential messages. We show that polar codes achieve the capacity of binary input symmetrical bidirectional broadcast channels with confidential messages, if one node´s channel is a degraded version of the other node´s channel. We also find a new bound on the cardinality of the auxiliary random variable in this setup.
Keywords :
broadcast channels; channel coding; auxiliary random variable; bidirectional broadcast channels; binary input symmetrical bidirectional broadcast channels; cardinality; confidential messages; polar codes; Conferences; Decoding; Encoding; Error probability; Memoryless systems; Random variables; Relays;
Conference_Titel :
Wireless Communication Systems (ISWCS), 2012 International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4673-0761-1
Electronic_ISBN :
2154-0217
DOI :
10.1109/ISWCS.2012.6328521
