細胞間干擾下正交分頻多工系統之效能改進

Performance Improvement of OFDMA Systems under Inter Cell Interference

吳昱陞(Yu-Sheng Wu)

指導教授 ： 呂振森

國立臺北科技大學/電資學院/電機工程系研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00367

摘要

無線行動通訊的快速發展，使用者對於無線傳輸的頻寬及容量的要求提升。正交分頻多工存取技術是最有可能成為下一代的行動通信系統，然而，在正交分頻多工系統下，細胞間干擾的問題出現會在靠近細胞邊緣的使用者，即影響傳輸品質與系統容量。本論文主要是探討在正交分頻多工系統下，細胞間干擾對區域內使用者的傳輸效率的影響，利用目前已知的頻率重複使用的使用方式，調整細胞區域的關係、使用者遠近的影響、功率的配置，以及最低功率的要求來做優先權排程改進整體傳輸的效率。

關鍵字

正交分頻多工存取 ； 細胞干擾 ； 頻率重複使用

並列摘要

The wireless communications is fasted development, the requirement of transmission bandwidth and capacity have increased for users. The OFDMA technology is considered next generation wireless system. In OFDMA system, inter cell interference is a serious problem for cell edge users, it effect performance and total capacity of cell. This thesis mainly researches into the performance improvement of OFDMA system under inter cell interference, we proposed cell region、users distance and minimum power to schedule priority to improve system performance.

並列關鍵字

OFDMA ； Inter Cell Interference ； Frequency Reuse

參考文獻

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[3] A. Hamza and S. Khalifa, "A Survey on Inter-Cell Interference Coordination Techniques in OFDMA-Based Cellular Networks, " IEEE Communications Surveys & Tutorials, pp. 1-29, March 2013.

[4] M. Rahman and H. Yanikomeroglu, "Inter-Cell Interference Coordination in OFDMA Networks: A Novel Approach Based on Integer Programming," IEEE Vehicular Technology Conference, pp. 1-5, May 2010.

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