空時(shí)旋轉(zhuǎn)不變性編碼技術(shù)及其頻率選擇性信道盲估計(jì)方法

吳曉軍; 李星; 王繼龍; 張金祥

空時(shí)旋轉(zhuǎn)不變性編碼技術(shù)及其頻率選擇性信道盲估計(jì)方法

吳曉軍^{①②;李星},
李星,
王繼龍,
張金祥

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出版歷程
- 收稿日期: 2004-06-04
- 修回日期: 2004-08-26
- 刊出日期: 2005-12-19

Space-Time Rotational-Invariance Coding Technique and Corresponding Blind Estimation Scheme of Frequency-Selective Channels

摘要

摘要: 針對(duì)處于頻率選擇性衰落環(huán)境中的垂直型貝爾實(shí)驗(yàn)室分層空時(shí)(Vertical Bell iabs LAyered Space-Time，V-BLAST)結(jié)構(gòu)，該文首先對(duì)其進(jìn)行聯(lián)合空時(shí)符號(hào)分組，然后提出了一種新穎的空時(shí)旋轉(zhuǎn)不變性編碼技術(shù)(Space-Time Rotational-Invariance Coding Technique，STRICT)。通過巧妙利用上述編碼技術(shù)中的旋轉(zhuǎn)不變性性質(zhì)，該文繼續(xù)為V-BLAST結(jié)構(gòu)提出了一種多輸入多輸出(Multiple-Input Multiple-Output，MIMO)頻率選擇性無線信道的盲估計(jì)方法。仿真結(jié)果表明了該文新穎STRICT的有效性及其信道盲估計(jì)方法的性能。
- 頻率選擇性; 多輸入多輸出;信道盲估計(jì)
Abstract: This paper firstly addresses the joint space-time symbol block for the Vertical Bell labs LAyered Space-Time (V-BLAST) architecture under the frequency-selective fading environment. Successively, one novel Space-Time Rotational-Invariance Coding Technique (STRICT) is proposed for the V-BLAST architecture. By elegantly exploiting the above introduced rotational-invariance property, one blind estimation scheme of the Multiple-Input Multiple-Output (MIMO) frequency-selective wireless channels is derived for the V-BLAST architecture. Extensive simulation results demonstrate both the validity of the novel STRICT and the performance of the blind estimation scheme of frequency-selective channels.

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