Ασύρματα δίκτυα - δυναμική κατανομή υποφερουσών στην τεχνική διαμόρφωσης OFDMA με τη χρήση του μετευριστικού αλγορίθμου της προσομοιωμένης ανόπτησης
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Subject
Τηλεπικοινωνιακά συστήματα ; Συστήματα ασύρματων επικοινωνιών ; Multiplexing ; Telecommunication systems ; Wireless communication systems ; Algorithms ; ΑλγόριθμοιAbstract
In this diploma thesis, Dynamic Subcarrier Allocation in wireless networks using OFDMA technique is considered. Consideration is focused in heuristic and meta- heuristic algorithms use and especially in simulating annealing. In telecommunication systems which use the OFDMA technique there is the necessity to allocate the subcarriers with the most optimum way in order to succeed the best potential services of the final user. The optimum working-out is a time-consuming procedure as varying the amount of users and their bandwidth requests there is the necessity to reallocate subcarriers. The users raise makes optimum solution as ineffective for real time networks. In this diploma thesis, simulated annealing algorithm is proposed in order to make the dynamic subcarrier allocation in a more timely effective way, producing an optimum or near to optimum solution.
Postgraduate Studies Programme
Ψηφιακά Συστήματα και ΥπηρεσίεςDepartment
Σχολή Τεχνολογιών Πληροφορικής και Επικοινωνιών. Τμήμα Ψηφιακών ΣυστημάτωνNumber of pages
104Language
GreekCollections
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Attribution-NonCommercial-NoDerivatives 4.0 Διεθνές
Attribution-NonCommercial-NoDerivatives 4.0 Διεθνές