Abstract
In this study, the problem of optimum subcarrier allocation in different numbers to users in OFDMA systems is discussed. OFDMA systems can be modelled by random bipartite graphs in scope of graph theory. Optimum subcarrier allocation with fixed numbers can be done by using maximum matching algorithms with providing fairness between users. In this study, Multi-R2EHK algorithm which provides subcarrier allocation in different numbers is proposed in accordance with requirements of different users. The results obtained with proposed algorithm shows that optimum subcarrier allocation according to user needs can be done by sacrificing some amount of performance. Besides, maximum frequency diversity and fairness between users also are provided.
Translated title of the contribution | Different numbers of subcarrier allocation in OFDMA systems via random bipartite graphs |
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Original language | Turkish |
Title of host publication | 2015 23rd Signal Processing and Communications Applications Conference, SIU 2015 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 1082-1085 |
Number of pages | 4 |
ISBN (Electronic) | 9781467373869 |
DOIs | |
Publication status | Published - 19 Jun 2015 |
Event | 2015 23rd Signal Processing and Communications Applications Conference, SIU 2015 - Malatya, Turkey Duration: 16 May 2015 → 19 May 2015 |
Publication series
Name | 2015 23rd Signal Processing and Communications Applications Conference, SIU 2015 - Proceedings |
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Conference
Conference | 2015 23rd Signal Processing and Communications Applications Conference, SIU 2015 |
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Country/Territory | Turkey |
City | Malatya |
Period | 16/05/15 → 19/05/15 |
Bibliographical note
Publisher Copyright:© 2015 IEEE.