Title :
Action dependent strictly causal state communication
Author :
Choudhuri, Chiranjib ; Mitra, Urbashi
Author_Institution :
Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
Channels with action-dependent states are considered: given the message to be communicated, the transmitter chooses an action sequence that affects the formation of the channel states, and then creates the channel input sequence based on the observed state sequence. The capacity - distortion tradeoff of such a channel is characterized for the case when the state information is available strictly causally at the channel encoder. The problem setting extends the action dependent framework of [1] and as a special case recovers the results of few previously considered joint communication and estimation scenarios in [2], [3], [4]. The scenario when the action is also allowed to depend on the past observed states is also considered and it has been shown that such adaptive action helps in achiveing a better capacity - distortion function.
Keywords :
causality; channel capacity; channel coding; action dependent state; capacity - distortion function; capacity-distortion tradeoff; causal state communication; channel encoder; channel input sequence; channel state; observed state sequence; state information; Channel estimation; Decoding; Encoding; Indexes; Markov processes; Receivers; Transmitters;
Conference_Titel :
Information Theory Proceedings (ISIT), 2012 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
978-1-4673-2580-6
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2012.6284124