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Optimal Resources Allocation in Cooperative OFDM systems
Rahmanian Koushkaki, Ali ; Khavand, Hakimeh ; Banizaman, Hamed
Synopsis "Optimal Resources Allocation in Cooperative OFDM systems"
In this book, first cooperative systems and structures are introduced. Then, OFDM systems are analyzed. Optimization and allocation of Sources of cooperative wireless networks are also discussed; so, in order to use these sources well, the allocation needs to be optimized. Three types of sources are studied in this book including Power Allocation, Subcarrier Pairing and Relay Assignment. Thus, the suggested methods involve the least calculation complexity while the function of semi-optimized algorithms is approximately optimized. In addition, optimization of sources of cooperative OFDM systems of Total Power Constraint and Individual Power Constraint are analyzed. Results indicate that suggested methods enjoy some merits regarding accuracy and speed of calculation so that their calculation complexity is less and functional accuracy are almost optimized compared with available methods. The semi-optimized suggested method can be a suitable substitute for the optimization method since optimization method has lots of complexities and seems not to fit real time systems while it shows long delays. Because of little calculations and simplicity in detection equipment, these semi-optimized algorithms are applicable in real time and practical systems.
