Power Control in Wireless Interference Networks with Limited Feedback
2012 (English)In: International Symposium on Wireless Communication Systems (ISWCS), 2012, IEEE conference proceedings, 2012, 671-675 p.Conference paper, Presentation (Refereed)
This paper addresses a power control problem in a wireless time-varying K-user interference network. Each transmitter intends to communicate to its desired receiver at afixed rate. Quantized channel gains are globally available through limited feedback signals. To eliminate multi-user interference, interference alignment scheme is performed based on the imperfect channel knowledge. The communication quality is affected by the channel quantization errors and interference leakage. We proposea power control algorithm, aiming to guarantee successful transmissions of each user while minimizing the transmission powerof the network. Our results show that even with limited number of feedback bits, by performing power control the considered interference alignment scheme can outperform the conventional time-division-multiple-access scheme.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2012. 671-675 p.
Interference alignment, power control, wireless communication, feedback
Communication Systems Telecommunications Signal Processing
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-104482DOI: 10.1109/ISWCS.2012.6328452ScopusID: 2-s2.0-84871347570ISBN: 978-1-4673-0760-4OAI: oai:DiVA.org:kth-104482DiVA: diva2:564922
International Symposium on Wireless Communication Systems (ISWCS'12), Paris, France, August 28-31, 2012
FunderICT - The Next Generation
QC 201211142012-11-142012-11-052015-03-04Bibliographically approved