Multiuser Detection with GA-Based Interference Cancellation for MC-CDMA Communication Systems
碩士 === 國立臺北科技大學 === 電機工程系所 === 94 === In this study a novel genetic algorithm based multiuser detector (GA-MUD) is developed to improve the performance and computational complexity of the multi-carrier code-division multiple-access (MC-CDMA) communication systems. To overcome the difficulty of high...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/b6guz4 |
| Summary: | 碩士 === 國立臺北科技大學 === 電機工程系所 === 94 === In this study a novel genetic algorithm based multiuser detector (GA-MUD) is developed to improve the performance and computational complexity of the multi-carrier code-division multiple-access (MC-CDMA) communication systems. To overcome the difficulty of high computational complexity of the conventional GA-MUD, a forced mutation (FM) operation is proposed and employed to the initialization procedure at each GA generation. A series of simulation is considered over frequency selective fading channel and the simulation result indicates that our proposed scheme can achieve the same BER of the conventional GA-MUD with a considerable reduction in computation. Furthermore, this study also finds that the bit error rate can be improved substantially when partial parallel interference cancellation (PPIC) is applied to the proposed FM-GA-MUD.
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