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- Viveck R. Cadambe, Syed Ali Jafar
- IEEE Transactions on Information Theory
- 2008

For the fully connected K user wireless interference channel where the channel coefficients are time-varying and are drawn from a continuous distribution, the sum capacity is characterized asâ€¦ (More)

- Krishna Srikanth Gomadam, Viveck R. Cadambe, Syed Ali Jafar
- IEEE Transactions on Information Theory
- 2011

Recent results establish the optimality of interference alignment to approach the Shannon capacity of interference networks at high SNR. However, the extent to which interference can be aligned overâ€¦ (More)

- Krishna Srikanth Gomadam, Viveck R. Cadambe, Syed Ali Jafar
- IEEE GLOBECOM 2008 - 2008 IEEE Globalâ€¦
- 2008

Recent results establish the optimality of interference alignment to approach the Shannon capacity of interference networks at high SNR. However, the extent to which interference can be aligned overâ€¦ (More)

We explore the degrees of freedom region for the 3 user wireless interference channel with perfect channel knowledge at all nodes. While the best known outerbound for the K user interference channelâ€¦ (More)

- Viveck R. Cadambe, Syed Ali Jafar
- IEEE Transactions on Information Theory
- 2009

We explore the degrees of freedom of M times N user wireless X networks, i.e., networks of M transmitters and N receivers where every transmitter has an independent message for every receiver. Weâ€¦ (More)

- Viveck R. Cadambe, Syed Ali Jafar
- ArXiv
- 2007

While the best known outerbound for the K user interference channel states that there cannot be more than K/2 degrees of freedom, it has been conjectured that in general the constant interferenceâ€¦ (More)

- Viveck R. Cadambe, Syed Ali Jafar
- 2008 IEEE International Conference onâ€¦
- 2008

We show that the sum capacity of the K user frequency selective (or time-varying) interference channel is C(SNR) = (K/2) log(SNR) +o(log(SNR)) meaning that the channel has a total of K/2 degrees ofâ€¦ (More)

- Hamed Maleki, Viveck R. Cadambe, Syed Ali Jafar
- IEEE Transactions on Information Theory
- 2012

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. An equivalence isâ€¦ (More)

- Viveck R. Cadambe, Syed Ali Jafar
- IEEE Transactions on Information Theory
- 2009

We find the degrees of freedom of a network with S source nodes, R relay nodes, and D destination nodes, with random time-varying/frequency-selective channel coefficients and global channel knowledgeâ€¦ (More)

- Syed Jafar, Viveck R. Cadambe, Chenwei Wang
- 2009 47th Annual Allerton Conference onâ€¦
- 2009

It has been conjectured that complex Gaussian interference channels with constant channel coefficients have only one degree-of-freedom (DoF) regardless of the number of users. While several examplesâ€¦ (More)