Abstract
This paper discusses the impact of relaying in interference-limited networks by studying a two-user Gaussian interference channel with a relay (IeR). Various models for relay reception and transmission are possible: The relay can receive and transmit in the same band as the sources (i.e., in-band reflly reception! transmission), or else relay reception, or both reception and transmission, can take place over orthogonal links of limited capacity (i.e., out-of-band reflly reception or/ and transmission). In all scenarios, the selection of either signal refllying, interference forwarding or a combination thereof for the relay operation is identified as a common design choice. While signal relaying enables the destination to obtain a stronger desired signal or additional information, interference forwarding helps removing part of the interference. Important scenarios under which signal relaying and interference forwarding are optimal are identified, including cognitive relaying where the relay is unaware of the source codebooks and out-of band relaying, both under certain modified strong interference conditions and the latter under additional capacity constraints on the orthogonal relay links.
| Original language | English (US) |
|---|---|
| Title of host publication | Information Theory and Applications Workshop, ITA 2009 |
| Pages | 90-95 |
| Number of pages | 6 |
| DOIs | |
| State | Published - 2009 |
| Event | Information Theory and Applications Workshop, ITA 2009 - San Diego, CA, United States Duration: Feb 8 2009 → Feb 13 2009 |
Other
| Other | Information Theory and Applications Workshop, ITA 2009 |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 2/8/09 → 2/13/09 |
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ASJC Scopus subject areas
- Computer Science Applications
- Information Systems
Cite this
Interference channel with a relay : Models, relaying strategies, bounds. / Sahin, Onur; Erkip, Elza; Simeone, Osvaldo.
Information Theory and Applications Workshop, ITA 2009. 2009. p. 90-95 5044928.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Interference channel with a relay
T2 - Models, relaying strategies, bounds
AU - Sahin, Onur
AU - Erkip, Elza
AU - Simeone, Osvaldo
PY - 2009
Y1 - 2009
N2 - This paper discusses the impact of relaying in interference-limited networks by studying a two-user Gaussian interference channel with a relay (IeR). Various models for relay reception and transmission are possible: The relay can receive and transmit in the same band as the sources (i.e., in-band reflly reception! transmission), or else relay reception, or both reception and transmission, can take place over orthogonal links of limited capacity (i.e., out-of-band reflly reception or/ and transmission). In all scenarios, the selection of either signal refllying, interference forwarding or a combination thereof for the relay operation is identified as a common design choice. While signal relaying enables the destination to obtain a stronger desired signal or additional information, interference forwarding helps removing part of the interference. Important scenarios under which signal relaying and interference forwarding are optimal are identified, including cognitive relaying where the relay is unaware of the source codebooks and out-of band relaying, both under certain modified strong interference conditions and the latter under additional capacity constraints on the orthogonal relay links.
AB - This paper discusses the impact of relaying in interference-limited networks by studying a two-user Gaussian interference channel with a relay (IeR). Various models for relay reception and transmission are possible: The relay can receive and transmit in the same band as the sources (i.e., in-band reflly reception! transmission), or else relay reception, or both reception and transmission, can take place over orthogonal links of limited capacity (i.e., out-of-band reflly reception or/ and transmission). In all scenarios, the selection of either signal refllying, interference forwarding or a combination thereof for the relay operation is identified as a common design choice. While signal relaying enables the destination to obtain a stronger desired signal or additional information, interference forwarding helps removing part of the interference. Important scenarios under which signal relaying and interference forwarding are optimal are identified, including cognitive relaying where the relay is unaware of the source codebooks and out-of band relaying, both under certain modified strong interference conditions and the latter under additional capacity constraints on the orthogonal relay links.
UR - http://www.scopus.com/inward/record.url?scp=70349269597&partnerID=8YFLogxK
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U2 - 10.1109/ITA.2009.5044928
DO - 10.1109/ITA.2009.5044928
M3 - Conference contribution
SN - 9781424439904
SP - 90
EP - 95
BT - Information Theory and Applications Workshop, ITA 2009
ER -