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題名 | Performance Analysis of Carrier Frequency Offset on Up-link MC-CDMA System with Unbalanced EGC over Nakagami Fading Channels=上鏈多載波分碼多重進接系統具有載波頻率偏移及不平衡權重等增益合成於中上環境之效能分析 |
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作 者 | 楊耀波; 鍾素麗; 劉智群; 劉慶華; | 書刊名 | 中正嶺學報 |
卷期 | 32:1(A) 民92.11 |
頁次 | 頁141-153 |
分類號 | 448.5 |
關鍵詞 | 頻率偏移; 多載波分碼多重進接系統; 不平衡權重等增益合成; 中上衰落; Frequency offset; MC-CDMA; Unbalance EGC; Nakagami fading; |
語文 | 英文(English) |
中文摘要 | 本論文在中上衰落環境下,探討完美的等增益合成之載波頻率偏移影響下的上鏈路多載波分碼多重進接系統 (MC-CDMA) 之性能及不平衡權重等增益合成 (EGC) 對效能的衝擊,同時與傳統的直序分碼多重進接 (DS-CDMA) 系統相比較。本研究結果已經證實載波頻率偏移確實降低系統性能,其中分支間不平衡權重造成系統性能退化更嚴重。 |
英文摘要 | In this paper effects of carrier frequency offset on performance of an uplink MC-CDMA (multi-carrier code division multiple access) system with equal gain combining (EGC) receivers over Nakagami fading channel have been investigated, and the impacts of gain unbalance between branches in MC-CDMA system has also been examined. The performance of such an MC-CDMA system is compared with that of the conventional single-carrier DS-CDMA system. Numerical results indicate that the system performance is indeed deteriorated by both the carrier frequency offset and the gain unbalance between branches. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。