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Interference Temperature Estimation in OFDM Based on the Directions of Arrival Sources

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4 Author(s)
Wei Ma ; Sch. of Inf. & Telecommun. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China ; Mu Qing Wu ; Chun Xiu Xu ; Li Yang

Cognitive radio (CR) is one of the most effective techniques to improve the spectrum utilization efficiency. In order to detect the presence of the spectrum holes and utilize them efficiently without causing interference to primary users, interference temperature estimation is considered as the key functionality. In this paper, we proposed a new interference temperature estimation method in OFDM based on the detection directions of arrival (DOA) sources in every resource element (RE) band. The derivation and simulation result shows that our proposed scheme can heighten the channel utilization of CR users.

Published in:
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Date of Conference: 24-26 Sept. 2009

Page(s):
1 - 4
E-ISBN :
978-1-4244-3693-4
Print ISBN:
978-1-4244-3692-7
INSPEC Accession Number:
10952679
Conference Location :
Beijing
Digital Object Identifier :
10.1109/WICOM.2009.5304119
Product Type:
Conference Publications

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