Iterative Resource Allocation Algorithms for OFDM
| Autor: | Yu-Ruei Lin, 林鈺睿 |
|---|---|
| Rok vydání: | 2008 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 96 In this thesis, we consider the resource allocation for OFDM system with frequency offset under Rayleigh fading. The signal-to-interference ratio (SIR) and the resulting outage probability of each carrier is derived for the OFDM system. With the outage probability expression, the overall throughput of the OFDM system is obtained as well. Three different resource allocation problem: power allocation, bit allocation, and joint power-bit allocation, are explored to maximize the overall throughput for the OFDM system. For power allocation problem, the optimal power allocation is obtained by applying geometric programming technique. On the other hand, due to the difficulty of integer programming, iterative algorithms are proposed to find near optimal bit allocation and joint power-bit allocation for the OFDM system respectively. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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