doi: 10.7763/IJET.2010.V2.178
Energy Efficient Modulation in MC DS/CDMA Using Game Theory Approach: Performance Results
- Department of Electronics and Communication Engineering, SMVEC, Pondicherry and *Jayaram Engineering college, Cuddalore
Abstract
The effect of constellation size on energy efficiency of Multi carrier Direct Sequence code-division multiple-access (MC DS/ CDMA) system for M-QAM modulation is studied using a game theoretic approach. A non cooperative game is proposed in which each user seeks to choose its transmit power, transmit symbol rate as well as the constellation size in order to maximize its own utility while satisfying its delay quality of service (QoS) constraint. The utility function used here measures the number of reliable bits transmitted per joule of energy consumed and it is particularly suitable for energy-constrained networks. It is shown that in order to maximize the user’s utility, a user must choose the lowest constellation size that can accommodate the user’s delay constraint. This strategy is different from one that could maximize spectral efficiency. Using this approach, the trade offs among energy efficiency, delay, throughput and constellation size are also studied and quantified.
How to Cite
Nagarajan . V, Murugan. V, and Prabagarane. N, "Energy Efficient Modulation in MC DS/CDMA Using Game Theory Approach: Performance Results," International Journal of Engineering and Technology, vol. 2, no. 6, pp. 537-542, 2010. https://doi.org/ 10.7763/IJET.2010.V2.178
Copyright & License
Copyright © 2010 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).