Capacity Region of the Bidirectional Broadcast Channel with Causal Channel State Information

Conference: ISWCS 2013 - The Tenth International Symposium on Wireless Communication Systems
08/27/2013 - 08/30/2013 at Ilmenau, Deutschland

Proceedings: ISWCS 2013

Pages: 5Language: englishTyp: PDF

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Authors:
Khormuji, Majid Nasiri (Huawei Technologies Sweden, Kista, Sweden)
Oechtering, Tobias J.; Skoglund, Mikael (School of Electrical Engineering and the ACCESS Linnaeus Center, KTH Royal Institute of Technology, Stockholm, Sweden)

Abstract:
We consider the broadcast channel with one transmitter and two receivers such that the transmitter wishes to convey two independentmessages to each receiver, respectively. When each receiver knows the intended message for the other one, as a side information the channel is referred to as the bidirectional broadcast channel. In this work, we establish the capacity region of the discrete memoryless bidirectional broadcast channel with state whose knowledge is causally known at the encoder. Further, we present an Ariomoto–Blahut-like algorithm to compute the capacity region numerically.