Name
Title | ||
|---|---|---|
Cooperative feedback to improve capacity and error rate in multiuser diversity systems — An OFDM case study |
Abstract | ||
|---|---|---|
To achieve multiuser diversity gains, resource alloca- tion relies on accurate and timely feedback of the users' cha nnel states. Obtaining such reliable feedback under tight overhead and delay constraints is non-trivial in many wireless systems. To this end, we let multiple users cooperate when transmitting feedback. Studying our cooperative feedback scheme exemplarily for the multiuser OFDM downlink shows that it efficiently avo ids resource allocation errors. This significantly improves er ror rate and ergodic sum capacity even if overhead is taken into account. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/EW.2009.5358010 | European Transactions on Telecommunications |
Keywords | Field | DocType |
ofdm modulation,diversity reception,feedback,multi-access systems,resource allocation,ofdm,cooperative feedback scheme,delay constraints,ergodic sum capacity,feedback transmission,multiuser diversity gains,multiuser diversity systems,resource allocation errors,user channel states,wireless systems,error rate,downlink,resource management,automatic repeat request,fading,robustness,forward error correction,signal to noise ratio | Resource management,Forward error correction,Computer science,Fading,Multiuser detection,Communication channel,Computer network,Real-time computing,Resource allocation,Orthogonal frequency-division multiplexing,Telecommunications link | Journal |
Volume | Issue | ISSN |
21 | 8 | 1124-318X |
ISBN | Citations | PageRank |
978-1-4244-5935-3 | 1 | 1.36 |
References | Authors | |
8 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Stefan Valentin | 1 | 57 | 9.88 |
| H. Karl | 2 | 1817 | 180.47 |