文档介绍：㽓ᅝ⬉ᄤ⾥ᡔᄺ
ᄺԡ䆎᭛⣀߯ᗻ˄߯ᮄᗻ˅ໄᯢ
⾝ᡓᄺ᷵Ϲ䇼ⱘᄺ亢Ӭ㡃ⱘ⾥ᄺ䘧ᖋˈᴀҎໄᯢ᠔ਜѸⱘ䆎᭛ᰃ៥ϾҎᇐᏜᣛ
ᇐϟ䖯㸠ⱘⷨおᎹঞপᕫⱘⷨお៤ᵰDŽሑ៥᠔ⶹˈ䰸њ᭛Ё⡍߿ࡴҹᷛ⊼㟈䇶Ё᠔
㔫߫ⱘݙᆍҹˈ䆎᭛Ёϡࣙ݊ҪҎᏆ㒣থ㸼᪄ݭ䖛ⱘⷨお៤ᵰ˗гϡࣙЎ㦋ᕫ
㽓ᅝ⬉ᄤ⾥ᡔᄺ݊ᅗᬭ㚆ᴎᵘⱘᄺԡ䆕к㗠Փ⫼䖛ⱘᴤ᭭DŽϢ៥ϔৠᎹⱘৠᖫ
њᯢ⹂ⱘ䇈ᯢᑊ㸼⼎њ䇶ᛣDŽخⱘӏԩ䋵⤂ഛᏆ䆎᭛Ёخᇍᴀⷨお᠔
⬇䇋ᄺԡ䆎᭛Ϣ䌘᭭㢹᳝ϡᅲП໘ˈᴀҎᡓᢙϔߛⱘ⊩ᕟ䋷ӏDŽ
ᴀҎㅒৡ˖᮹ᳳ
㽓ᅝ⬉ᄤ⾥ᡔᄺ
݇Ѣ䆎᭛Փ⫼ᥜᴗⱘ䇈ᯢ
ᴀҎᅠܼњ㾷㽓ᅝ⬉ᄤ⾥ᡔᄺֱ᳝݇⬭Փ⫼ᄺԡ䆎᭛ⱘ㾘ᅮˈे˖ⷨお⫳᷵
ᬏ䇏ᄺԡᳳ䯈䆎᭛Ꮉⱘⶹ䆚ѻᴗऩԡሲ㽓ᅝ⬉ᄤ⾥ᡔᄺDŽᄺ᳝᷵ᴗֱ⬭䗕Ѹ䆎᭛ⱘ
䆌䞛⫼ᕅܕ䯙䆎᭛˗ᄺ᷵ৃҹ݀Ꮧ䆎᭛ⱘܼ䚼䚼ߚݙᆍˈৃҹ׳䆌ᶹ䯙ܕˈॄӊ
ǃ㓽ॄ݊ᅗࠊ↉ֱᄬ䆎᭛DŽৠᯊᴀҎֱ䆕ˈ↩Ϯৢ㒧ড়ᄺԡ䆎᭛ⷨお䇒乬ݡ᪄ॄ
ݭⱘ᭛ゴϔᕟ㕆ৡऩԡЎ㽓ᅝ⬉ᄤ⾥ᡔᄺDŽ
˅ᆚⱘ䆎᭛㾷ᆚৢ䙉ᅜℸ㾘ᅮֱ˄
ᴀᄺԡ䆎᭛ሲѢֱᆚˈᑈ㾷ᆚৢ䗖⫼ᴀᥜᴗкDŽ
ᴀҎㅒৡ˖᮹ᳳ˖
ᇐᏜㅒৡ˖᮹ᳳ˖
ᨬ㽕
ᨬ㽕
ϟˈᰒ㨫ᦤछ䗮ֵ㋏㒳ⱘމMIMO ᡔᴃৃҹϡࡴ㋏㒳乥䈅ᏺᆑথᇘࡳ⥛ⱘᚙ
᳡⬅Ѣሎᑺ㹄㨑ᓩ䍋ⱘֵোᔎᑺ䱣Ӵ䕧䎱⾏ⱘࡴ㗠ᰒ㨫ܟᆍ䞣DŽ᮴㒓Ё㒻ᡔᴃৃҹ
ϟ䰡ⱘ䯂乬ˈ㛑ᦤ催᮴㒓㔥㒰ⱘ㋏㒳ᆍ䞣㽚Ⲫ㣗ೈDŽMIMO ᡔᴃϢЁ㒻䗮ֵᡔᴃⱘ
᳝ᬜ㵡ড়ˈѻ⫳њ MIMO ᮴㒓Ё㒻ᡔᴃˈ䆹ᡔᴃ᳝ MIMO Ё㒻ϸ⾡ᡔᴃⱘさߎӬ
ˈᏅ㒣៤Ўᴹ 4G Ёⱘ䞡㽕ᡔᴃDŽᴀ᭛Џ㽕ⷨおњ⚍ᇍ⚍ⱘ MIMO ᮴㒓Ё㒻䗮ֵ
⬅㒳⚍ᇍ⚍ⱘ MIMO ᮴㒓Ё㒻䗮ֵ㋏㒳ˈⷨおⱘ䞡⚍ᰃ㦋পሑৃ㛑催ⱘ㞾㋏
ᑺे⫼Ⲟᯊˈ䗮ֵᮍḜⱘԧᅲ⦄ᔶᓣҹঞⳌᑨⱘ㒓䜡㕂㑺ᴳᴵӊDŽ
ᴀ᭛ᦤߎњϔ⾡Ѣ乘㓪ⷕ㔥㒰㓪ⷕⱘ⚍ᇍ⚍ⱘ MIMO ᮴㒓Ё㒻䗮ֵˈܜ佪
᠋⫼ᮍḜˈ䆹ᮍḜ߽⫼ֵোぎ䯈ᇍ唤ᡔᴃ䳊ぎ䯈ᡥࠊᡔᴃᴹ䆒䅵乘㓪ⷕⶽ䰉ˈ⍜䰸
ᑆᡄˈᑊ߽⫼㔥㒰㓪ⷕᡔᴃⱘ⡍⚍ˈৃҹᅲ⦄⑤㡖⚍ϢϾⳂⱘ㡖⚍П䯈ऴ⫼Ⳍৠⱘᯊ
乥䌘⑤ᴹⳌѦ䗮ֵˈᦤ催њ䗮ֵ㋏㒳ⱘ㞾⬅ᑺӴ䕧ᬜ⥛DŽℸ⸔Ϟˈজ䖯ϔℹ
䞛⫼ᬊ㒓䗝ᢽᡔᴃᴹᠽሩ䆹ᮍḜⱘ㒓䜡㕂ᴵӊˈՓ䆹䗮ֵᮍḜⱘ㒓䜡㕂ᴵӊ
߭⾡ৃ㸠ⱘ㒓䜡㕂Ё䖯㸠♉⌏䗝ᢽDŽޚЎᑓ⊯ˈᅲ䰙䗮ֵЁˈৃҹḍϡৠ
ˈˈᴀ᭛䖬ᦤߎњϔ⾡Ӭ࣪㞾⬅ᑺⱘ⚍ᇍ⚍ⱘ MIMO ᮴㒓Ё㒻䗮ֵᮍḜ݊
⫼Ѣᅲ⦄Ͼ⫼᠋㡖⚍䯈䗮䖛ϔϾЁ㒻㡖⚍ⱘ䕙ࡽ䕀থՓऴ⫼Ⳍৠᯊ乥䌘⑤ⱘ㡖⚍䖯
㸠ⳌѦ䗮ֵDŽ䆹ᮍḜ䞛⫼ϔ⾡Ā᭄⌕ߚ㒘āⱘᗱᛇˈᅲ⦄њЁ㒻Ӵ䕧ˈे㒓
䜡㕂ᴵӊܕ䆌ⱘᚙމϟˈᇚॳᴹⱘऩ⌕᭄ߚ㾷៤ᑊ㸠ⱘ⌕᭄䖯㸠ৠᯊৠ乥Ӵ䕧ˈ
Փᕫ↣Ͼ䗮ֵ⫼᠋ᇍП䯈ৃҹѸѦ䏃⣀ゟֵᙃ⌕ˈᦤ催њ㋏㒳ⱘ㞾⬅ᑺ⫼
ⲞDŽϢℸৠᯊˈгৃҹḍᅲ䰙䗮ֵഎ᱃ᴹࡼᗕഄ䗝প⣀ゟֵো⌕ⱘ᭄䞣ˈ⫼Ⲟ
ߚ䲚ⲞП䯈䖯㸠ᡬЁDŽӓⳳ㒧ᵰг㸼ᯢˈ߽⫼ᴀ᭛ᦤߎⱘㅫ⊩ৃҹᦤ催㞾⬅ᑺӴ
䕧ᬜ⥛DŽ
݇䬂䆡˖MIMO Ё㒻ᡔᴃ乘㓪ⷕ㔥㒰㓪ⷕ㞾⬅ᑺ
Abstract
Abstract
MIMO technology can increase the system capacity munication significantly with
the spectrum bandwidth and the transmission power not increased. The wireless relay
technology can e the problem that the signal decreased significantly with the increase
of transmission distance due to the large-scale fading, and improve the system capacity and
coverage of the work. The MIMO wireless relay technology is an effective
integration of the two technologies and has e an important technology in 4G. This paper
studies the schemes for point-to-multipoin