Home > Papers

 
 
Optimal Sub-carrier Allocation Algorithm in Multi-Cell OFDMA Cognitive Radio Network Using Graph Theory
Luo Shifeng * #
Beijing University of Posts and Telecommunications
*Correspondence author
#Submitted by
Subject:
Funding: NOKIA,国家自然科学基金,国家自然科学基金（No.,60572120,60602058）
Opened online:21 December 2009
Accepted by: none
Citation: Luo Shifeng.Optimal Sub-carrier Allocation Algorithm in Multi-Cell OFDMA Cognitive Radio Network Using Graph Theory[OL]. [21 December 2009] http://en.paper.edu.cn/en_releasepaper/content/37791
 
 
Cognitive radio (CR) makes it possible for a secondary user to access a spectrum unoccupied by primary users. This paper studies the problem of finding an optimal sub-carrier allocation algorithm for multiple secondary users in an OFDMA-based cell network like LTE. The algorithm we proposed will not allow frequency overlap with other cells in the same CR cluster under condition that the interference from the adjacent cell exists. Graph theory is introduced for achieving optimal performance. And the simulation result is given at the end, which shows satisfying results.
Keywords:cognitive radio;sub-carrier allocation;OFDMA;multi-cell;graph theory
 
 
 

For this paper
  • ● PDF (0B)
  • ● Revision 0 　　
  • ● Print this paper
  • ● Recommend this paper to a friend
  • ● Add to my favorite list

    Saved Papers

    Please enter a name for this paper to be shown in your personalized Saved Papers list

Tags
Add yours

Related Papers

Statistics
PDF Downloaded 276
Bookmarked 0
Recommend 5
Comments Array
Submit your papers