A semidefinite relaxation approach for beamforming in cooperative clustered multicell systems with novel limited feedback scheme

• Main Authors: Zhang, Zhiyu, Teh, Kah Chan, Li, Kwok Hung
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/105354; http://hdl.handle.net/10220/20489; http://dx.doi.org/10.1109/TVT.2013.2285710
• Institution: Nanyang Technological University

In this paper, we consider suboptimal cooperative downlink beamforming strategies to maximize the user sum rate in a clustered multicell system with limited feedback. We decouple the problem into multiple independent subproblems through the uplink-downlink duality theorem. Semidefinite relaxation is...