@inproceedings{6c2ab9ab3527425f9c6904c7a13a804c,
title = "Power allocation in OFDM-based cognitive radio systems",
abstract = "In this paper, we investigate the optimal power allocation strategy that aims at maximizing the capacity in OFDMbased cognitive radio systems. We show that the traditional water-filling algorithm applied in general OFDM systems needs to be modified due to the per subchannel power constraints in such systems. An iterative partitioned water-filling algorithm is proposed and proved to be optimal based on the convex optimization theory.",
keywords = "Cognitive radio (CR), OFDM, Power allocation, Water-filling",
author = "Peng Wang and Ming Zhao and Limin Xiao and Shidong Zhou and Jing Wang",
year = "2007",
doi = "10.1109/GLOCOM.2007.772",
language = "英语",
isbn = "1424410436",
series = "GLOBECOM - IEEE Global Telecommunications Conference",
pages = "4061--4065",
booktitle = "IEEE GLOBECOM 2007 - 2007 IEEE Global Telecommunications Conference, Proceedings",
note = "50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007 ; Conference date: 26-11-2007 Through 30-11-2007",
}