740 citations · 3.8k across the 111 of their papers we have counts for
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Minimum CSIT to achieve Maximum Degrees of Freedom for the MISO BC
Ravi Tandon, Syed A. Jafar, Shlomo Shamai
Channel state information at the transmitter (CSIT) is a key ingredient in realizing the multiplexing gain provided by distributed MIMO systems. For a downlink multiple-input singl…
On the Synergistic Benefits of Alternating CSIT for the MISO BC
Ravi Tandon, Syed A. Jafar, Shlomo Shamai +1
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, I_i, i=1,2, of the channel s…
Degrees of Freedom of MIMO X Networks: Spatial Scale Invariance, One-Sided Decomposability and Linear Feasibility
Hua Sun, Chunhua Geng, Tiangao Gou +1
We show that an M X N user MIMO X network with A antennas at each node has AMN/(M+N-1) degrees of freedom (DoF), thus resolving in this case a discrepancy between the spatial scale…
Index Coding - An Interference Alignment Perspective
Hamed Maleki, Viveck R. Cadambe, Syed A. Jafar
The index coding problem is studied from an interference alignment perspective, providing new results as well as new insights into, and generalizations of, previously known results…
Elements of Cellular Blind Interference Alignment --- Aligned Frequency Reuse, Wireless Index Coding and Interference Diversity
Syed A. Jafar
We explore degrees of freedom (DoF) characterizations of partially connected wireless networks, especially cellular networks, with no channel state information at the transmitters.…
Optimal Use of Current and Outdated Channel State Information - Degrees of Freedom of the MISO BC with Mixed CSIT
Tiangao Gou, Syed A. Jafar
We consider a multiple-input-single-output (MISO) broadcast channel with mixed channel state information at the transmitter (CSIT) that consists of imperfect current CSIT and perfe…