Distributed Interference Alignment and Power Control for Wireless MIMO Interference Networks with Noisy Channel State Information
2013 (English)In: 2013 First International Black Sea Conference on Communications and Networking (BlackSeaCom), IEEE conference proceedings, 2013, 23-27 p.Conference paper (Refereed)
This paper considers a multi-input multi-output(MIMO) interference network in which each transmitter intendsto communicate with its dedicated receiver at a certain fixed rate. It is known that when perfect CSI is available at each terminal, the interference alignment technique can be applied to align theinterference signals at each receivers in a subspace independent of the desired signal subspace. The impact of interference canhence be eliminated. In practice, however, terminals in general can acquire only noisy CSI. Interference alignment cannot be perfectly performed to avoid interference leakage in the signal subspace. Thus, the quality of each communication link dependson the transmission power of the unintended transmitters. Tosolve this problem, we propose an iterative algorithm to performstochastic power control and transceiver design based on onlynoisy local CSI. The transceiver design is conducted based on the interference alignment concept, and the power control seeks solutions of efficiently assigning transmit powers to provide successful communications for all transmitter-receiver pairs.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2013. 23-27 p.
Interference alignment, power control, noisy CSI
Communication Systems Telecommunications Signal Processing
IdentifiersURN: urn:nbn:se:kth:diva-122671DOI: 10.1109/BlackSeaCom.2013.6623375ISI: 000335887600005ScopusID: 2-s2.0-84890066502ISBN: 978-1-4799-0857-8OAI: oai:DiVA.org:kth-122671DiVA: diva2:623194
First International Black Sea Conference on Communications and Networking; Batumi, Georgia, July 3-5, 2013
QC 201308202013-05-242013-05-242014-06-13Bibliographically approved