Muhammad Aatiq Ismail Xiang Xu 0001 Rudolf Mathar Autonomous antenna tilt and power configuration based on CQI for LTE cellular networks. 1-5 2013 ISWCS https://ieeexplore.ieee.org/document/6629766/ conf/iswcs/2013 db/conf/iswcs/iswcs2013.html#IsmailXM13