@inproceedings{LiScMa09c, author = {Chunhui Liu and Anke Schmeink and Rudolf Mathar}, title = "Efficient Power Allocation for {OFDM} with Imperfect Channel State Information", booktitle = "{IEEE} WiCOM 2009", address = {Beijing, China}, month = Sep, year = 2009, hsb = {hsb910012495}, }