Results 91 to 100 of about 137 (117)
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2012 50th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2012
In the setting of the two-user broadcast channel, where a two-antenna transmitter communicates information to two single-antenna receivers, recent work by Maddah-Ali and Tse has shown that perfect knowledge of delayed channel state information at the transmitter (perfect delayed CSIT) can be useful, even in the absence of any knowledge of current CSIT.
Jinyuan Chen, Petros Elia
exaly +2 more sources
In the setting of the two-user broadcast channel, where a two-antenna transmitter communicates information to two single-antenna receivers, recent work by Maddah-Ali and Tse has shown that perfect knowledge of delayed channel state information at the transmitter (perfect delayed CSIT) can be useful, even in the absence of any knowledge of current CSIT.
Jinyuan Chen, Petros Elia
exaly +2 more sources
On the degrees of freedom of X channel with delayed CSIT
2011 IEEE International Symposium on Information Theory Proceedings, 2011Akbar Ghasemi +2 more
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Scheduling Algorithms for MU-MIMO with Partial Current CSIT and Full Delayed CSIT
2013 IEEE 77th Vehicular Technology Conference (VTC Spring), 2013Recently, a novel class of high-performance multi-round MU- MIMO schemes were developed by Yang et al. [1] for the practically attractive scenario in which the transmitter has available partial channel state information (CSI) regarding the current state of the channel, but also full delayed CSI. We study methods for combining user scheduling with these
Ankit Singh Rawat +2 more
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Transmitter cooperation in interference channel with delayed CSIT
2014 52nd Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2014In this work we study the impact of limited transmitter cooperation on interference management in two-user interference channel. In particular, we consider the two-user interference channel with delayed channel state information at the transmitters (delayed CSIT).
Sina Lashgari, Amir Salman Avestimehr
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An outer bound on the MIMO BC with evolving current CSIT and perfect delayed CSIT
2014 6th International Symposium on Communications, Control and Signal Processing (ISCCSP), 2014We derive a DoF outer bound for the two-user multiple-input multiple-output broadcast channel (MIMO BC) with good-quality delayed channel state information at the transmitter (perfect quality delayed CSIT), and with current CSIT of evolving quality (evolving current CSIT).
Jinyuan Chen, Petros Elia
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Time-correlated MISO wiretap channel with delayed CSIT
2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2013We consider the time-correlated multiple-input single-output (MISO) wiretap channel where a multi-antenna transmitter wishes to convey a confidential message to its receiver in the presence of an eavesdropper. Assuming that the transmitter with delayed channel state information acquires some knowledge on current channel state due to the temporal ...
Mari Kobayashi +2 more
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Block Diagonalization in the MIMO Broadcast Channel with Delayed CSIT
GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009This paper investigates the impact of delayed channel state information at the transmitter (CSIT) on the MIMO broadcast channel with block diagonalization (BD) precoding. First, an upper bound for the achievable throughput is provided, which shows that BD is more robust to imperfect CSIT than zeroforcing precoding as it has fewer inter-user interfering
Jun Zhang 0004 +2 more
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On the degrees of freedom of MIMO X channel with delayed CSIT
2012 IEEE International Symposium on Information Theory Proceedings, 2012The multiple-input multiple-output (MIMO) Gaussian X channel in i.i.d. fading environment and with delayed channel state information at transmitters (delayed CSIT) is considered. It is assumed that each transmitter has M antennas and each receiver has N antennas.
Akbar Ghasemi +2 more
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On multi-user MISO wiretap channels with delayed CSIT
2014 IEEE International Symposium on Information Theory, 2014The multiple-input single-output (MISO) wiretap channel with K legitimate single-antenna receivers, one single-antenna eavesdropper in presence of delayed channel state information at the transmitter (CSIT) is considered. The transmitter is equipped with (K+1) antennas and has independent messages intended for each one of the K legitimate receivers ...
Ravi Tandon +2 more
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Degrees of Freedom of the MIMO Z-Interference Channel With Delayed CSIT
IEEE Communications Letters, 2015The degrees of freedom region is established for the 2-user multiple-input multiple-output Z-interference channel with an arbitrary number of antennas at each node, under the assumption of delayed channel state information at the transmitters. A new interference alignment scheme is obtained and is shown to be optimal in the degrees of freedom (DoF ...
Kaniska Mohanty, Mahesh K. Varanasi
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