非同調位元交錯編碼調變;Noncoherent Bit-Interleaved Coded Modulation

NCUIR > College of Electrical Engineering & Computer Science > Department of Communication Engineering > Research Project > Item 987654321/70121

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/70121

Title:	非同調位元交錯編碼調變;Noncoherent Bit-Interleaved Coded Modulation
Authors:	魏瑞益
Contributors:	通訊工程系
Keywords:	電信工程
Date:	2016-03-29
Issue Date:	2016-03-30 12:34:48 (UTC+8)
Publisher:	科技部
Abstract:	無線通訊常傳輸在連續衰退(continuous fading)通道上，而最適合此種通道的通道碼為位元交錯編碼調變(bit-interleaved coded modulation, BICM)。然而，同調BICM需要傳前導符元(pilot symbol)以做通道估測，但當通道變化較快速時，前導符元須傳送較頻繁，所導致的速率損失(rate loss)也較大。如果這時使用非同調編碼（例如相差編碼），在接收端可以使用非同調檢測，這樣就沒有前導符元的速率損失問題。本計畫目標是針對連續衰退通道，設計比『使用前導符;The common channel model used for wireless communications is the continuous fading channel. Bit-interleaved coded modulation (BICM) is the most powerful channel code for such channel. However, coherernt BICM needs pilot symbols for channel estimation. If ;研究期間：10408~10507
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Department of Communication Engineering] Research Project

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