ディペンダブルワイヤレスNGN (DWN) の実現へ向け
て(3項 先端ワイヤレス通信技術研究分野,2節 ブロ
ードバンド工学研究部門の目標と成果,第3章 研究
活動)
雑誌名
東北大学電気通信研究所研究活動報告
巻
15
ページ
25-26
発行年
2009-08-01
URL
http://hdl.handle.net/10097/48350
ҳየ̅ʺ˺̂ˏᥱд૮ለኴԔᨂ¡
࠺ࠖࡍࡦ࠳ࡉ࡞ࡢࠗࡗࠬ NGN (DWN) ߩታ߳ะߌߡ
ᶼԔᨂʍᆾᶾ¡
ࡄ࠰ࠦࡦ߆ࠄኅ㔚ຠߦ⥋ࠆ߹ߢ㧘ㆉߔࠆߔߴߡߩ࠺ࠖࠫ࠲࡞ᯏེ߇ή✢ࡀ࠶࠻ࡢ
ࠢߢធ⛯ߐࠇ㧘శࡈࠔࠗࡃߥߤߦࠃࠆ㜞ㅦࡃ࠶ࠢࡏࡦߦࠃߞߡធ⛯ߐࠇߚ⇇ਛߩ
ࠬࡄࠨࡃ߆ࠄ㧘㖸ჿ࠹ࠠࠬ࠻േ↹ߥߤߩࠄࠁࠆ⒳㘃ߩ࠺࠲߳ߩࠕࠢࠬ
ࠍน⢻ߣߥࠆ࡙ࡆࠠ࠲ࠬࡀ࠶࠻ࡢࠢ␠ળߩታߪ⋡೨ߢࠆ㧚ᒰ⎇ⓥಽ㊁ߢߪࡢࠗࡗ
ࠬ NGN ߩታࠍ⋡ᜰߒߡ㧘వ┵ࡢࠗࡗࠬᖱႎㅢାᛛⴚ㧔Wireless IT㧕ߦ㑐ߔࠆ⎇ⓥࠍ㧘
ࡀ࠶࠻ࡢࠢࠪࠬ࠹ࡓ߆ࠄ㧘࠺ࡃࠗࠬ‛ᕈߦ⥋ࠆ߹ߢ㧘৻⽾ߒߚ⎇ⓥ㐿⊒ߢⴕߞ
ߡࠆ㧚
ᶼ³±±¹ श्ʍʉીೖᶾ¡
㧝㧚ᐢၞࡕࡃࠗ࡞ࡉࡠ࠼ࡃࡦ࠼ࡢࠗࡗࠬࠕࠢࠬ (MBWA) ᣇᑼߩ⎇ⓥ
⒖േㅢାⅣႺߦ߅ߡ߽㜞ㅦ IP ࡀ࠶࠻ࡢࠢߦࠕࠢࠬน⢻ߣߔࠆ MBWA ᣇᑼߩᬌ
⸛ࠍⴕߞߚ㧚ᐕᐲߪ․ߦ MBWA ߥߤᐢၞ♽ࠪࠬ࠹ࡓߢ㊀ⷐߣߥࠆᵄᢙ㗔ၞ╬ൻᛛⴚ
ߦߟߡ㧘ASIC ߳ታⵝߔࠆߚߩᬌ⸛ࠍⴕߞߚ㧚
㧞㧚㜞ㅦᐢᏪၞή✢ㅢାߩߚߩࠕ࠽ࡠࠣRF ࡕࠫࡘ࡞ߩ⎇ⓥ
ή✢ㅢା┵ᧃߩવㅍㅦᐲ㜞ㅦൻዊဳൻૐᶖ⾌㔚ജൻࠍ⋡ᜰߒ㧘60GHz Ꮺ Si CMOS
VCOㅍାჇེ߿ࠬࠤࡉ࡞ A/D ᄌ឵ེߥߤߩᬌ⸛ࠍⴕߞߚ㧚․ߦ㧘ᧄᐕᐲߪ㧘90nm
Si CMOS ࡊࡠࠬࠍ↪㧘ߘࠇߙࠇߩⷐ⚛࿁〝ߩ⹜⹏ଔࠍⴕߞߚ㧚
㧟㧚ࠪࡓࠬ 3 ᰴరታⵝ SiP (System in a Package) ᛛⴚ
⇣⒳᧚ᢱ࠺ࡃࠗࠬࠍ 3 ᰴరታⵝߔࠆߎߣߦࠃࠅ㧘㜞ᵄᏪߢ߽ࠪࡓࠬߦታⵝน⢻ߢ
ࠆߎߣࠍឭ᩺ߒߚ㧚ᐕᐲߪ․ߦ 60GHz Ꮺዊဳࠕࡦ࠹࠽ࠍࡕࠫࡘ࡞ߦታⵝߒ㧘ታ
࿑㕙⺑: ࠺ࠖࡍࡦ࠳ࡉ࡞ࡢࠗࡗࠬ NGNⷙᩰൻߐࠇߡࠆή✢ㅢା
ࠪࠬ࠹ࡓߩㅢାㅦᐲߣㅢା〒㔌
ߩ㑐ଥࠍ␜ߒߚ߽ߩߢࠆ㧚ㅢ
ା〒㔌ߦᔕߓߡ㧘ᐢၞ♽ή✢
LAN ♽ㄭ〒㔌♽ߩਃ⒳㘃ߩ
ࠪࠬ࠹ࡓ߇ሽߔࠆ㧚࡙ࠩ┵
ᧃߦߪ㧘㔚ᳰߩኈ㊂߿ੱ߳ߩ
ᓇ㗀߆ࠄ 1W ߩㅍା㔚ജ㒢߇
ࠆߣ⠨߃ࠆߣ㧘2GHz Ꮺߢߪ
࿑ਛߩ⿒✢ߩࠃ߁ߦㅢା〒㔌ߣ
વㅍㅦᐲߣߩ㑆ߦ࠻࠼ࠝࡈ
߇ሽߒ㧘ฦޘߩࠪࠬ࠹ࡓߩ㜞
ㅦൻߦߪ㒢⇇߇ሽߔࠆ㧚
ᒰಽ ㊁ߢߪ㧘ߎࠇࠄⶄᢙߩࠪࠬ࠹ࡓࠍ ⛔วߔࠆߎߣߦࠃߞߡ㧘ᦨㆡߥㅢ ା〒㔌વㅍㅦᐲߢㅢାࠍⴕ߁ߎ ߣ߇ߢ߈ࠆࠃ߁ߥዊဳૐᶖ⾌㔚 ജή✢ㅢା┵ᧃߩታࠍ⋡ᜰߔ㧚᷹⹏ଔࠍⴕߞߚ㧚
㧠㧚MOCVD ᴺߦࠃࠆ AlN ⭯⤑ࠍ↪ߚ⭯⤑ࡃ࡞ࠢᵄᝄེ (FBAR) ࡈࠖ࡞࠲⊒ᝄེ
ή✢ LAN Ꮺၞߢࠆ 5GHz Ꮺ↪ߩ RF ࡈࡠࡦ࠻ࠛࡦ࠼ࡈࠖ࡞࠲ߩ㜞ᕈ⢻ൻࠍ⋡ᜰߒ㧘
FBAR ࡈࠖ࡞࠲⊒ᝄེߩᬌ⸛ࠍⴕߞߚ㧚ᐕᐲߪਥߦ FBAR ࠍ↪ߚ⊒ᝄེߩ⹜⹏
ଔ㧘߮ FBAR ߩ㜞ᵄൻߩᬌ⸛ࠍⴕߞߚ㧚
ᶼᒶىᶾ¡
ᢎ ဝౝ ᄦ (1993 ᐕࠃࠅ) ಎᢎ ਛἑ ඳਯ (2005 ᐕࠃࠅ 2007 ᐕ 6 ߹ߢ) ഥ ᢎ ↰ ථᶼۺӑحބʍ˭̃˫ʹ̎́ᶾ¡
ᤘ 49 ᐕ 3 ฬฎደᄢቇᄢቇ㒮Ꮏቇ⎇ⓥ⑼㔚ሶᎿቇኾඳ჻⺖⒟ୃੌ㧚Ꮏቇඳ჻㧚ᤘ 49 ᐕ 4 ᧲ർᄢቇ㔚᳇ㅢା⎇ⓥᚲഥᚻ㧚ᤘ 57 ᐕ 4 㨪 10 ☨࿖ࡄ࠺ࡘᄢቇቴຬഥᢎ㧚ᤘ 58 ᐕ 3 ഥᢎ㧚ᐔᚑ 5 ᐕ 3 ᢎ㧚ᤘ 58 ᐕㇱႎ⾨㧘ᐔᚑ 6 ᐕ╙ 26 ࿁Ꮢቇⴚ⾨⽸₂⾨㧘ᐔᚑ 8 ᐕ ╙ 11 ࿁㔚᳇ㅢା᥉⽷࿅⾨ (࠹ࠦࡓࠪࠬ࠹ࡓᛛⴚ⾨)㧘ᐔᚑ 9 ᐕ╙ 22 ࿁ᤐᚑ⾨㧘ᐔᚑ 15 ᐕ ᧲ർ✚วㅢାዪ㐳ޟ㔚ᵄߩᣣޠᓆ㧘ᐔᚑ 17 ᐕFPGA/PLD Design Conference ࡙ࠩࡊࡦ࠹
࡚ࠪࡦክᩏຬ․⾨㧘ᐔᚑ 17 ᐕᐲ㔚ሶᖱႎㅢାቇળᬺ❣⾨
㧘╙ 5 ࿁↥ቇቭㅪ៤ഞഭ⠪ᓆޟᢥㇱ⑼ ቇᄢ⤿⾨ޠฃ⾨㧚ᣣᧄ‛ℂቇળ㧘ᔕ↪‛ℂቇળ㧘㔚᳇ቇળ㧘㔚ሶᖱႎㅢାቇળ㧘ᣣᧄࠛࠢ࠻ࡠ࠾ࠢࠬ ታⵝቇળ㧘IEEE ળຬ㧚ᶼ³±±¹ श्ʍʉᆌᜟ៵௮ጇᶾ¡
[1] K. Shimoyama, S. Yoshida, T. T. Thanh, K. Matsuzaki, H. Oguma, S. Kameda, H. Nakase, T. Takagi, and K. Tsubouchi, "5GHz Si-CMOS differential power amplifier module with directly connected dipole antenna," IEICE Electronics Express, vol.5, no.7, pp.229-234, April 10, 2008.
[2] S. Yoshida, K. Tsubouchi, A. Tosaki, H. Oguma, S. Kameda, H. Nakase, and T. Takagi, "Radiation characteristics of ultra-small wireless communication modules for 60GHz band WPAN," 2008 IEEE Int. Symp. on Antennas and Propagation and USNC/URSI National Radio Science Meeting, 108.11, July 2008.
[3] V. Gheorghiu, S. Kameda, T. Takagi, K. Tsubouchi, and F. Adachi, "Implementation of single carrier packet transmission with frequency domain equalization," 68th IEEE Vehicular Tech. Conf., 4H-3, Sept. 2008.
[4] N. Izuka, Y. Asano, Y. Yamazaki, H. Oguma, S. Kameda, T. Takagi, and K. Tsubouchi, "First-ever report on MBWA system field trial: Interference issue in sectored cell layout," 68th IEEE Vehicular Tech. Conf., 7E-4, Sept. 2008.
[5] V. Gheorghiu, S. Kameda, T. Takagi, K. Tsubouchi, and F. Adachi, "Implementation of frequency domain equalizer for single carrier transmission," 4th Int. Conf. on Wireless Commun., Networking and Mobile Computing (WiCOM 2008), Oct. 2008.
[6] T. N. Hao, S. Kameda, T. Takagi, and K. Tsubouchi, "Measurement of indoor multipath propagation characteristics at 60 GHz with high delay time resolution," Int. Conf. on Advanced Tech. for Commun., 4C, Oct. 2008.
[7] H. Oguma, S. Kameda, N. Izuka, T. Takagi, K. Tsubouchi, Y. Asano, and Y. Yamazaki, "Measured downlink throughput performance of MBWA system in urban area," IEEE Int. Symp. on Wireless Commun. Systems (ISWCS2008), Oct. 2008.
[8] Y. Aota, S. Tanifuji, H. Oguma, S. Kameda, T. Takagi, and K. Tsubouchi, "AlN film using low temperature MOCVD process for FBAR," 2008 IEEE Int. Ultrason. Symp., P3J095-05, Nov. 2008.
[9] S. Tanifuji, Y. Aota, H. Oguma, S. Kameda, T. Takagi, and K. Tsubouchi, "Spurious vibration sppression by film thickness control for FBAR," 2008 IEEE Int. Ultrason. Symp., P3J094-04, Nov. 2008.
[10] H. Oguma, S. Kameda, N. Izuka, Y. Asano, Y. Yamazaki, T. Takagi, and K. Tsubouchi, "Comparison of downlink throughput distributions between frequency reuse factors of one and three in MBWA system field trial," Int. Symp. on Wireless and Pervasive Computing (ISWPC2009), Feb. 2009.
