By Topic

A low-complexity adaptive co-channel interference removal scheme for COFDM systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Xiaoxin Zhang ; State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Peking Univ., Beijing, China ; Hongbo Guo ; Yuping Zhao

Coded orthogonal frequency division multiplexing (COFDM) broadband systems may coexist with other wireless systems and suffer from co-channel interferece (CCI). CCI severely affects soft decision decoding and degrades the performance of COFDM systems. In this paper, we propose a novel CCI removal scheme which is adaptive and low in implementation cost. The proposed scheme has three important features: 1) It can detect the pilots affected by CCI and amend the incorrect channel frequency responses (CFRs); 2) It calculates soft decisions by only using the amended CFRs; 3) It can detect the soft decisions affected by CCI and erase them. We compare the proposed scheme with the conventional one presented in [1]. Simulation results indicate that the proposed scheme eliminates CCI more effectively than the conventional one. Moreover, the proposed scheme requires lower computation complexity and memory

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:56 ,  Issue: 2 )