TY - GEN

T1 - On state-dependent channels with non-memoryless state information at the transmitter

AU - Weiss, Yedidya

AU - Somekh-Baruch, Anelia

PY - 2012

Y1 - 2012

N2 - We consider a state dependent channel with a state sequence which is a stationary and ergodic process known non-causally to the transmitter. We first establish a multi-letter formula for the capacity of this single-user channel. We show that among all the stationary-ergodic state sequences having the same single symbol distribution, the i.i.d. one is the worst. We present an example in which the capacity of the channel controlled by a Markov chain state sequence is strictly higher than that of the same channel with an i.i.d. state sequence having the same stationary distribution. We conclude by demonstrating that in the setup of a cognitive channel with an interférer, one can benefit in terms of reliably transmitted rates if the interférer uses random coding schemes with memory rather than i.i.d. ones.

AB - We consider a state dependent channel with a state sequence which is a stationary and ergodic process known non-causally to the transmitter. We first establish a multi-letter formula for the capacity of this single-user channel. We show that among all the stationary-ergodic state sequences having the same single symbol distribution, the i.i.d. one is the worst. We present an example in which the capacity of the channel controlled by a Markov chain state sequence is strictly higher than that of the same channel with an i.i.d. state sequence having the same stationary distribution. We conclude by demonstrating that in the setup of a cognitive channel with an interférer, one can benefit in terms of reliably transmitted rates if the interférer uses random coding schemes with memory rather than i.i.d. ones.

UR - http://www.scopus.com/inward/record.url?scp=84871986958&partnerID=8YFLogxK

U2 - 10.1109/eeei.2012.6376999

DO - 10.1109/eeei.2012.6376999

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AN - SCOPUS:84871986958

SN - 9781467346801

T3 - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012

BT - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012

T2 - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012

Y2 - 14 November 2012 through 17 November 2012

ER -