Abstract
We show that fully connected two-hop wireless networks with K sources, K relays and K destinations have K degrees of freedom for almost all values of constant channel coefficients. Our main contribution is a new interference-alignment-based achievability scheme which we call aligned network diagonalization. This scheme allows the data streams transmitted by the sources to undergo a diagonal linear transformation from the sources to the destinations, thus being received free of interference by their intended destination.
| Original language | English (US) |
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| Title of host publication | 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012 |
| Pages | 1935-1942 |
| Number of pages | 8 |
| DOIs | |
| State | Published - Dec 1 2012 |
| Externally published | Yes |
| Event | 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012 - Monticello, IL, United States Duration: Oct 1 2012 → Oct 5 2012 |
Publication series
| Name | 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012 |
|---|
Other
| Other | 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012 |
|---|---|
| Country | United States |
| City | Monticello, IL |
| Period | 10/1/12 → 10/5/12 |
ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Science Applications
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Cite this
Shomorony, I., & Avestimehr, A. S. (2012). Degrees of freedom of two-hop wireless networks: "Everyone gets the entire cake". In 2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012 (pp. 1935-1942). [6483459] (2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012). https://doi.org/10.1109/Allerton.2012.6483459