740 citations · 3.8k across the 111 of their papers we have counts for
6 papers · 2 filters
Subspace Alignment Chains and the Degrees of Freedom of the Three-User MIMO Interference Channel
Chenwei Wang, Tiangao Gou, Syed A. Jafar
We show that the 3 user M_T x M_R MIMO interference channel has d(M,N)=min(M/(2-1/k),N/(2+1/k)) degrees of freedom (DoF) normalized by time, frequency, and space dimensions, where…
Optimal Repair of MDS Codes in Distributed Storage via Subspace Interference Alignment
Viveck R. Cadambe, Cheng Huang, Syed A. Jafar +1
It is well known that an (n,k) code can be used to store 'k' units of information in 'n' unit-capacity disks of a distributed data storage system. If the code used is maximum dista…
Broadcast Channels with Delayed Finite-Rate Feedback: Predict or Observe?
Jiaming Xu, Jeffrey G. Andrews, Syed A. Jafar
Most multiuser precoding techniques require accurate transmitter channel state information (CSIT) to maintain orthogonality between the users. Such techniques have proven quite fra…
Multiple Unicast Capacity of 2-Source 2-Sink Networks
Chenwei Wang, Tiangao Gou, Syed A. Jafar
We study the sum capacity of multiple unicasts in wired and wireless multihop networks. With 2 source nodes and 2 sink nodes, there are a total of 4 independent unicast sessions (m…
Interference, Cooperation and Connectivity - A Degrees of Freedom Perspective
Chenwei Wang, Syed A. Jafar, Shlomo Shamai +1
We explore the interplay between interference, cooperation and connectivity in heterogeneous wireless interference networks. Specifically, we consider a 4-user locally-connected in…
Aligned Interference Neutralization and the Degrees of Freedom of the 2 User Interference Channel with Instantaneous Relay
Namyoon Lee, Syed A. Jafar
It is well known that the classical 2 user Gaussian interference channel has only 1 degree of freedom (DoF), which can be achieved by orthogonal time division among the 2 users. It…