正交分頻多工系統結合功率控制的適應性調變編碼技術與自動回傳機制之效能改善

Improve Spectrum Efficiency Based On Adaptive-Power AMC and Truncated ARQ for OFDM Systems

朱泳鴻(Yung-Hung Chu)

指導教授 ： 曾恕銘

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00595

摘要

關於自適應調製編碼技術已經被廣泛的應用，主要的功用在於對抗無線通道下的衰弱與提高系統的資料傳輸量。而更進一步的研究在於結合實體層的自適應編碼技術跟資料連結層的自動重傳機制。本篇論文主要是探討OFDM系統在自適應編碼技術和自動重傳機制這兩種技術架構下加入功率控制的方法。不同於其他篇論文的地方在於，我們的功率控制參數是針對每一個自適應編碼模式做設計，而其他篇則是以全部的模式取平均。

關鍵字

功率控制 ； 自適應編碼技術 ； 自動回傳機制 ； 正交分頻多工

並列摘要

In this paper, we add transmit power control within each AMC mode for the cross-layer combining AMC and ARQ for OFDM system. Our scheme that subjects to power constraint in each AMC mode is different from the scheme of the other paper that subject to power constraint averaged over all AMC modes. Also the other paper is a single-carrier system. Numerical results reveal that in the system, the average SE of our proposed scheme is better than the non-adaptive case.

並列關鍵字

power control ； AMC ； ARQ ； OFDM

參考文獻

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