Block diagonalization for interference mitigation in Ka-band backhaul networks
Zetik R, Ramireddy V, Grossmann M, Landmann M, Del Galdo G (2016)
Publication Type: Conference contribution
Publication year: 2016
Publisher: Institute of Electrical and Electronics Engineers Inc.
Conference Proceedings Title: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Event location: Valencia, ESP
ISBN: 9781509032549
DOI: 10.1109/PIMRC.2016.7794679
Abstract
This paper considers the design of precoding and decoding techniques for backhaul networks at Ka band. In this frequency band, large antenna arrays must be employed with appropriate beamforming and precoding techniques to combat the high path loss. Traditional multi-antenna systems use digital baseband beamforming and precoding that is not economical for large antenna arrays due to its cost and power consumption. Recently, hybrid analog-digital solutions were suggested for millimeter wave multiple-input-multiple-output systems. They rely on two steps. The first step consists of an analog only beamforming which aims at the exploitation of the high antenna gain offered by the large-scale antenna array. The second step mitigates the multiuser interference by means of digital precoding. In this paper, we focus on the second step of the hybrid precoding. We propose a solution for interference mitigation in multi-base station scenarios. Our solution is based on a block diagonalization technique and requires full channel state information at each base station of a backhaul network. The performance of the algorithm is compared to a partial block diagonalization which was originally proposed for the single base station downlink scenario.
Involved external institutions
Germany (DE)How to cite
APA:
Zetik, R., Ramireddy, V., Grossmann, M., Landmann, M., & Del Galdo, G. (2016). Block diagonalization for interference mitigation in Ka-band backhaul networks. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Valencia, ESP: Institute of Electrical and Electronics Engineers Inc..
MLA:
Zetik, Rudolf, et al. "Block diagonalization for interference mitigation in Ka-band backhaul networks." Proceedings of the 27th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2016, Valencia, ESP Institute of Electrical and Electronics Engineers Inc., 2016.
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