TY - GEN
T1 - Two-user MISO broadcast channel
T2 - 2013 IEEE International Symposium on Information Theory, ISIT 2013
AU - Tandon, Ravi
AU - Jafar, Syed Ali
AU - Shamai, Shlomo
AU - Poor, H. Vincent
PY - 2013
Y1 - 2013
N2 - The degrees of freedom (DoF) of the two-user multiple-input single-output (MISO) broadcast channel (BC) are studied under the assumption that the form, Ii, i = 1, 2, of the channel state information at the transmitter (CSIT) for each user's channel can be either perfect (P), delayed (D) or not available (N), i.e., I1, I2 {P, N, D}, and therefore the overall CSIT can alternate between the 9 resulting states I1I 2. The fraction of time associated with CSIT state I 1I2 is denoted by the parameter λI 1I2 and it is assumed throughout that λI 1I2 = λI2I1, i.e., λPN = λNP, λPD = λDP, λDN = λND. Under this assumption of symmetry, the main contribution of this paper is a complete characterization of the DoF region of the two user MISO BC with alternating CSIT. The results highlight the synergistic benefits of alternating CSIT and the tradeoffs between various forms of CSIT for any given DoF value.
AB - The degrees of freedom (DoF) of the two-user multiple-input single-output (MISO) broadcast channel (BC) are studied under the assumption that the form, Ii, i = 1, 2, of the channel state information at the transmitter (CSIT) for each user's channel can be either perfect (P), delayed (D) or not available (N), i.e., I1, I2 {P, N, D}, and therefore the overall CSIT can alternate between the 9 resulting states I1I 2. The fraction of time associated with CSIT state I 1I2 is denoted by the parameter λI 1I2 and it is assumed throughout that λI 1I2 = λI2I1, i.e., λPN = λNP, λPD = λDP, λDN = λND. Under this assumption of symmetry, the main contribution of this paper is a complete characterization of the DoF region of the two user MISO BC with alternating CSIT. The results highlight the synergistic benefits of alternating CSIT and the tradeoffs between various forms of CSIT for any given DoF value.
UR - http://www.scopus.com/inward/record.url?scp=84890403884&partnerID=8YFLogxK
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U2 - 10.1109/ISIT.2013.6620530
DO - 10.1109/ISIT.2013.6620530
M3 - Conference contribution
AN - SCOPUS:84890403884
SN - 9781479904464
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 1764
EP - 1768
BT - 2013 IEEE International Symposium on Information Theory, ISIT 2013
Y2 - 7 July 2013 through 12 July 2013
ER -