Abstract
We consider the ergodic fading Gaussian interference relay channel (EF-GIFRC) with individual power constraints at the nodes. Aiming at design insights to emerge from the optimal power allocation, we focus on scenarios similar to that of the degraded/reversely degraded relay channels. In particular, we focus on models where the source-to-relay (S - R) links are either stronger than direct links, or completely blocked, i.e., with an "on-and-off" relay. To characterize the capacity of EF-GIFRC with an on-and-off relay, we first investigate the parallel interference relay channel. We propose an achievable scheme based on partial decode-and-forward (DF) strategy and show that the capacity for the parallel IFRC can be achieved under strong interference and degradedness conditions. Based on the achievable rate region for parallel IFRC, we propose an achievable rate region for EF-GIFRC, and present the properties of optimal power allocation. We also present a sum capacity result when the EF-GIFRC satisfies certain channel conditions.
| Original language | English (US) |
|---|---|
| Title of host publication | 2010 IEEE International Symposium on Information Theory, ISIT 2010 - Proceedings |
| Pages | 400-404 |
| Number of pages | 5 |
| DOIs | |
| State | Published - 2010 |
| Event | 2010 IEEE International Symposium on Information Theory, ISIT 2010 - Austin, TX, United States Duration: Jun 13 2010 → Jun 18 2010 |
Other
| Other | 2010 IEEE International Symposium on Information Theory, ISIT 2010 |
|---|---|
| Country | United States |
| City | Austin, TX |
| Period | 6/13/10 → 6/18/10 |
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All Science Journal Classification (ASJC) codes
- Applied Mathematics
- Modeling and Simulation
- Theoretical Computer Science
- Information Systems
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The ergodic fading interference channel with an on-and-off relay. / Tian, Ye; Yener, Aylin.
2010 IEEE International Symposium on Information Theory, ISIT 2010 - Proceedings. 2010. p. 400-404 5513387.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - The ergodic fading interference channel with an on-and-off relay
AU - Tian, Ye
AU - Yener, Aylin
PY - 2010
Y1 - 2010
N2 - We consider the ergodic fading Gaussian interference relay channel (EF-GIFRC) with individual power constraints at the nodes. Aiming at design insights to emerge from the optimal power allocation, we focus on scenarios similar to that of the degraded/reversely degraded relay channels. In particular, we focus on models where the source-to-relay (S - R) links are either stronger than direct links, or completely blocked, i.e., with an "on-and-off" relay. To characterize the capacity of EF-GIFRC with an on-and-off relay, we first investigate the parallel interference relay channel. We propose an achievable scheme based on partial decode-and-forward (DF) strategy and show that the capacity for the parallel IFRC can be achieved under strong interference and degradedness conditions. Based on the achievable rate region for parallel IFRC, we propose an achievable rate region for EF-GIFRC, and present the properties of optimal power allocation. We also present a sum capacity result when the EF-GIFRC satisfies certain channel conditions.
AB - We consider the ergodic fading Gaussian interference relay channel (EF-GIFRC) with individual power constraints at the nodes. Aiming at design insights to emerge from the optimal power allocation, we focus on scenarios similar to that of the degraded/reversely degraded relay channels. In particular, we focus on models where the source-to-relay (S - R) links are either stronger than direct links, or completely blocked, i.e., with an "on-and-off" relay. To characterize the capacity of EF-GIFRC with an on-and-off relay, we first investigate the parallel interference relay channel. We propose an achievable scheme based on partial decode-and-forward (DF) strategy and show that the capacity for the parallel IFRC can be achieved under strong interference and degradedness conditions. Based on the achievable rate region for parallel IFRC, we propose an achievable rate region for EF-GIFRC, and present the properties of optimal power allocation. We also present a sum capacity result when the EF-GIFRC satisfies certain channel conditions.
UR - http://www.scopus.com/inward/record.url?scp=77955666792&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955666792&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2010.5513387
DO - 10.1109/ISIT.2010.5513387
M3 - Conference contribution
AN - SCOPUS:77955666792
SN - 9781424469604
SP - 400
EP - 404
BT - 2010 IEEE International Symposium on Information Theory, ISIT 2010 - Proceedings
ER -