Abstract | ||
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The energy efficiency (EE) maximization in multi-carrier code division multiple access (MC-CDMA)1 cooperative wireless networks is a NP-hard optimization problem of great interest for future networks systems as well as wireless sensor networks. This paper presents a game theoretic approach for EE maximization in MC-CDMA wireless cooperative networks considering receiver single-user or multi-user design, as well as distributed implementation approach in order to solve the EE design problem. Moreover, the iterative water-filling algorithm (IWFA) and the Verhulst distributed power control algorithm (V-DPCA) are employed to solve the inner loop of the proposed EE maximization algorithm. A study over the quasi-concavity of the utility function is presented while numerical results are offered to corroborate the mathematical model, as well as to verify the better performance of the IWFA over the V-DPCA. Indeed, the superiority of the IWFA over V-DPCA in terms of both EE and SE is evident. This may be explained through the fact that the IWFA optimizes the power allocation of each user through all sub-carriers at the same time, while Verhulst-based DPCA performs the power control on each sub-channel considering all users. |
Year | DOI | Venue |
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2013 | 10.1109/PIMRC.2013.6666132 | PIMRC |
Keywords | DocType | ISSN |
game theory,iterative methods,power control,distributed parameter systems,code division multiple access,energy conservation,wireless sensor networks | Conference | 2166-9570 |
Citations | PageRank | References |
0 | 0.34 | 8 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
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Lucas Dias H. Sampaio | 1 | 26 | 4.10 |
Álvaro R. C. Souza | 2 | 1 | 1.36 |
Taufik Abrão | 3 | 126 | 36.18 |
Paul Jean Etienne Jeszensky | 4 | 19 | 6.24 |