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Simple Dynamic Subcarrier Allocation With CQI Feedback Reduction for OFDMA Systems.
- Source :
-
IEEE Transactions on Vehicular Technology . Sep2008, Vol. 57 Issue 5, p3299-3303. 5p. 2 Charts, 5 Graphs. - Publication Year :
- 2008
-
Abstract
- The focus of this paper is a proposal for a computationally efficient dynamic subcarrier allocation (DSA) algorithm for orthogonal frequency-division multiple access (OFDMA) systems. The proposed DSA algorithm considerably reduces the computational complexity and the amount of channel quality information (CQI) compared to amplitude- craving greedy (ACG) algorithms, which use full CQI. At the same time, the performance of the proposed algorithm closely approaches that achieved by ACG algorithms. Moreover, the authors present a new bandwidth-assignment algorithm produced by modifying bandwidth as- signment based on the signal-to-noise ratio (BABS). This modified BABS algorithm enables the proposed DSA algorithm to produce a strong outage performance gain over the conventional scheme. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189545
- Volume :
- 57
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Vehicular Technology
- Publication Type :
- Academic Journal
- Accession number :
- 34659838
- Full Text :
- https://doi.org/10.1109/TVT.2008.917219