10G - Epon mạng quang thụ động Ethernet thế hệ kế tiếp

I IK<br /> MANG QUANG THU D O N G ETHERNET THE Ht Kt TIEP<br /> <br /> Le Hai Chau<br /> <br /> <br /> Bai bao gidi thieu tong quan ve cong ngtie don gidn hda he thdng vd giam gid thdnh eung nhu<br /> mang truy nhap quang thu dgng Ethernet 10 didn tich cde tram trung tdm, ede mang truy nhdp<br /> Gigabit theo tieu chuan IEEE Std 802.3avTM- quang thu ddng PON vdi hai edng nghd canh ttanh<br /> 2009 vdi vai tro la cong nghe mang truy nhap ehinh la GPON vd EPON dang duge tridn khai rdng<br /> ke tiep toe do cao co kha nang ho trd ca toe khdp. Mang quang thu ddng Ethernet (EPON) hidn<br /> do doi xCfng hai hifdng 10 Gbit/s va khong ddi nay theo tidu chudn IEEE 802.3ah eung edp tde dd<br /> xvfng 10 Gbit/s du'dng len va 1 Gbit/s du'dng truy nhdp ddi xiing 1 Gbit/s eho dudng ldn vd dudng<br /> xudng, trong khi van duy tri tfnh tifdng thich<br /> xudng (edn ggi la GE-PON bode IG-EPON). Trong<br /> ngu'dc vdi cac thiet bi EPON da dUdc trien<br /> taong lai, dd ddp img nhu edu vd chdt lugng vd bang<br /> khai.<br /> thdng ngdy edng cao eua ede img dung va dich vu<br /> hudng video, dung lugng cua mang truy nhdp thd<br /> G I O I T H I E U CHUNG hd kd tidp can tidp tac dugc md rdng, nham dap img<br /> Cimg vdi nhimg tidn bd ciia cdng nghe mang truy cde dich vu hudng video va tich hgp da dich vu ttdn<br /> nhdp, cdc loai hinh dich vu duge eung edp bdi cdc mdt ndn tdng truy nhdp chung.<br /> nhd khai thde vidn thdng cftng dang ddn thay ddi; Nhdm md rdng tdc dd truy nhap dudng ldn vd dudng<br /> bdn canh cde dich vu truydn thdng dft Ueu truydn xudng ttong EPON hidn nay ldn mue 10 Gbit/s ttong<br /> thdng vide eung cdp bd sung ede dich vu mdi nhu khi vdn dam bao khd ndng taong thich nguge vdi<br /> didn thoai ttdn ndn IP vd dich vu hudng video (IPTV, cae thidt bi EPON dd duge tridn khai, td chuc chudn<br /> Tivi dd phdn gidi cao HD-TV,...). Vdi kha ndng eung hda IEEE dd tidn bdnh phat tridn vd chudn hda cdng<br /> cdp mdt cdch hidu qua vd Mnh td nhidu loai dich vu nghd mang truy nhdp quang thu ddng Ethernet 10<br /> khde nhau ttdn cimg mdt ndn tang mang truy edp. Gigabit (lOG-EPON). Thdng 3 ndm 2006, IEEE 802.3<br /> <br /> <br /> <br /> TAP CHI CNTT&TT KY 1 (8.2011) I 231<br />  CONG NGHE V I E N THONG<br /> <br /> <br /> <br /> <br /> 9! Wireless back-haul<br /> <br /> LIE, WiFi, WiMAX<br /> <br /> <br /> <br /> <br /> Cable Apartment<br /> <br /> Hinh 1. Ki&i tnJc chung oja mang lOG EPON<br /> <br /> <br /> thdng bdo kdu ggi thdnh lap nhdm nghidn eim mdi Gbit/s; ONU boat ddng d ehd dd tdc dd khdng ddi<br /> vdi tdn ggi Id "10 Gbit/s PHY for EPON" dd xem xet xiing 10 Gbit/s dudng len vd 1 Gbit/s dudng xudng;<br /> dinh nghla tdng vdt ly (PHY) eua EPON boat ddng vd ONU otdc do 1 Gbit/s dudng ldn vd 1 Gbit/s dudng<br /> vdi tde dd 10 Gbit/s. Sau khi nhdm nghidn eim di xudng eua ede IG-EPON. He tiidng lOG-EPON cd tiid<br /> vdo hoat ddng, IEEE 802.3av Task force dugc tiidnh eung cap nhidu loai hinh dieh vu truy cap bang rdng<br /> ldp ta thdng 7 ndm 2006. Vide phdt tridn ehuan da dang nhu ede loai hinh dich vu FTTx, cdc dudng<br /> edng nghe lOG-EPON 802.3av duge hodn tiianh vd thud kenh rieng tde dd cao cho ede dich vu thuong<br /> phd ehuan vdo thdng 9 nam 2009 (cdn ggi la tidu mai vd ede diem truy cap eho dieh vu khdng ddy<br /> ehuan IEEE Std 802.3av™-2009). Theo dd, lOG- tdc do cao. Vdi khd ndng phdi hgp hidu qua nhidu<br /> EPON Id ehuan edng nghd mang truy nhdp quang didm truy cap. Men tnie lOG-EPON ciing phu hgp<br /> thu ddng Ethernet kd tidp eua edng nghd EPON hien eho vide eung edp mang mang vd taydn cho cde hd<br /> nay vdi kha nang hd ttg hai loai tde do: Ddi ximg vdi tiidng di ddng nhu LTE, WiFi vd WiMAX.<br /> 10 Gbit/s dudng ldn vd dudng xudng; vd khdng ddi Mae du ed thd phai mdt vdi nam nfta cdng nghd<br /> ximg vdi 10 Gbit/s dudng xudng vd 1 Gbit/s dudng lOG-EPON mdi ttd ndn du chin mudi vd mat ky thudt<br /> ldn. Hinh I minh hga Mdn tnic chung eua mot mang eung nhu vd mat Mnh td dd dugc dua vdo khai thde<br /> truy nhdp dua tren cdng nghd lOG-EPON da cung rdng rai ttong tiii trudng mang truy nhdp, edng nghd<br /> edp ede dudng truy nhdp cho cde loai dieh vu vdi tde lOG-EPON hua hen Id giai phap hidu qua vd Mnh td<br /> dd ddi ximg 10 Gbit/s vd tde dd khdng ddi xiing vdi dd ehuydn hda lidn tue ldn ede hd thdng mang truy<br /> 10 Gbit/s dudng ldn va 1 Gbit/s dudng xudng. nhdp thd he kd tidp, dap iing nhu eau dich vu hudng<br /> Trong mang lOG-EPON, OLT boat ddng nhu tiiidt video va truy cap tde dd cao trong taong lai.<br /> bi kdt eudi hgp nhdt cho tdt ea eac loai hinh dich vu<br /> vd ede ONU eung edp cdc giao didn tmy nhdp cho CONG NGHE MANG QUANG THU DONG<br /> mdi loai dich vu. Vdi kha ndng taong thich vdi cdc ETHERNET 10 GIGABIT<br /> mang IG-EPON vd hd ttg qud tiinh ndng edp ddn<br /> Trong dac ta chudn 802.3av cho mang truy nhdp<br /> ddn eua hd tiidng, ONU ttong lOG-EPON bao gdm<br /> quang tiiu ddng 10 Gigabit, tdng vdt ly vd tdng Udn<br /> 3 loai: ONU boat ddng a ehd dd tde dd ddi ximg 10<br /> <br /> <br /> 2 4 I TAP CHI CNTT&TT KY 1 (8.2011)<br />  CONG NGHE VIEN THONG<br /> <br /> <br /> <br /> OSI Reference model IEEE 802.3 Layering diagram<br /> <br /> Logical Link Control<br /> <br /> <br /> <br /> Application<br /> <br /> Presentation Reconciliation Sublayer (RS)<br /> <br /> aablt/lOG Media Independent Interface<br /> -XGIlllll)<br /> <br /> Transport<br /> Physical Coding Sublayer (PCS) •<br /> <br /> Network JB^^^V I Main scope of<br /> > Physical Medium Attachment (PMA) I |EEE 802 3av<br /> <br /> Scope of Physical Medium Dependent (PMD)<br /> IEEE802.3 Mediunfl)ep*nd«nt Intwfica<br /> (DMI)<br /> J777J~™^™^7» - ^<br /> <br /> Hinh 2. Moi quan he giija ki6n tnic phan tang IEEE 802.3av va mo hinh OSI<br /> <br /> kdt dft lieu duge phdn nhd them thdnh cdc phdn dd dft lidu cua eae he tiidng EPON ta I Gbit/s ldn<br /> tdng vd cdc giao dien (Hinh 2). Chuan lOG-EPON 10 Gbit/s phii hgp vdi giao dien Ethernet 10 Gbit/s.<br /> 802.3av duy tri kha nang taong thich hodn toan v(3i Nhidu giao thire duge diing chung gifta hai chudn<br /> cdc fliiet bi EPON 1 Gbit/s hidn tai (chudn 802.3ah) edng nghd IG-EPON (802.3ah) va lOG-EPON. Ky<br /> vd dac ta tdng vdt ly bao gdm eae phdn tdng: Phdn tiiudt ghep kenh tiieo sdng tiid (CWDM) va ghdp<br /> tdng tai didu giai (RS); Cde phdn tang ma hda vdt ly kdnh theo thdi gian TDM duge sir dung kdt hgp dd<br /> (PCS) ddi ximg vd khdng ddi jcimg; Phdn tdng di kdm eho phdp eae he thdng IG-EPON vd lOG-EPON cd<br /> phuong tien vdt ly (PMA) vd phdn tdng phu thude thd boat ddng tten cimg mdt ha tdng mang PON.<br /> phuong tidn vdt ly (PMD) cho cae tdc dd dft lieu 10 Tuong ta nhu vdi IG-EPON, lOG-EPON dua vdo<br /> Gbit/s ddi xiing vd tdc dd khdng ddi ximg dudng ldn edng nghe VoIP dd tmydn tai luu lugng thoai vd ede<br /> 10 Gbit/s vd dudng xudng 1 Gbit/s. Phdn tdng PMD dieh vu md phdng kenh CES dd dap img ede ydu edu<br /> chiu ttdch nhidm giao tidp vtiii phuong tidn tmydn img dung TDM khde. IEEE 802.3av dinh nghia 2 ehd<br /> dan thdng qua giao didn phu thude phuong tidn do tdng vdt ly eho mang lOG-EPON:<br /> (MDI). Giao didn phu tiiude phuong tien dae td ede - Tde dd ddi ximg: Hd trg tmydn tdi vd thu dft lidu<br /> tin hidu qua phuong tien vat ly vd ede giao didn didn 6 tde dd dudng ldn vd dudng xudng 10 Gbit/s.<br /> vd eo. Phdn tdng PMA bao gdm cdc chuc nang ddng<br /> - Tde dd khdng ddi ximg: Hd ttg tde dd dudng ldn<br /> chinh pha, khdi phuc ddng hd, tidp nhdn vd truydn<br /> 10 Gbit/s vd tdc dd dudng xudng I Gbit/s.<br /> tai. Phdn tang PCS ma hda ede bit du lieu tiidnh<br /> cdch nhdm ma ed thd truydn dugc qua phuong tidn Tmydn ddn dudng ldn ttong lOG-EPON gidng vdi<br /> vdt ly yeu edu. Giao dien ddc ldp phuong tien 10 ttong he thdng IG-EPON taong img hidn tai bdng<br /> Gbit (XGMn) hoac giao didn ddc lap phuong tidn each dua vdo cde bd thu phat quang theo chd dd<br /> Gigabit (GMII) dac ta mdt giao didn gifta tdng didu burst. Trong khi dd, traydn ddn dudng xudng su<br /> khidn tmy nhdp (MAC) vd tdng vdt ly (PHY) vd phdn dung thu phdt quang ehd dd lien tue nhu ttong cdc<br /> tdng RS eung edp ehuydn ddi cho ede tin hidu GMII/ thidt bi Ethernet didm-didm tde dd 10 Gbit/s. Dft<br /> XGMn ddn cde dinh nghla dich vu MAC. lieu dudng ldn vd dudng xudng duge tmydn tai ttdn<br /> cimg mdt mang PON vd duge phdn tach bdng ky<br /> Chudn cdng nghd mang quang thu ddng Ethernet thudt ghep kdnh theo budc sdng. Dai budc sdng eho<br /> 10 Gigabit IEEE 802.3av dugc phdt tridn dd tdng tdc<br /> <br /> <br /> TAP CHI CNTT&TT KY 1 (8.2011)<br /> 125<br />  CONG NGHE V I E N THONG<br /> <br /> <br /> <br /> <br /> Dudng xuong<br /> <br /> <br /> <br /> <br /> Hinh 3. Truyin din d u ^ g I6n vd duong xu6ng trong he thong lOG-PON kit hop vol IG-PON<br /> <br /> <br /> dudng ldn vd dudng xudng duge lua chgn sao eho cdng sudt thdp, sd 20 the hien quy edng sudt trung<br /> laser ydu edu tai cdc ONU khdng qud ddt. Khi edng binh vd sd 30 thd hidn eho quy cdng sudt cao. Bang<br /> nghd vd dieh vu phdt tridn, ede mang lOG-EPON se 1 tdng ket mdi quan hd giua cdc ti Id chia, khoang<br /> ehuyen ddn ldn ehd do tde dd ddi xung. cdch tmydn dan vd loai quy edng sudt taong iing.<br /> Ba loai quy edng sudt quang (PRIO/PRXIO, PR20/<br /> PRX20 vd PR30/PRX30) ttong lOG-EPON duge ddc<br /> DAC D I E M CHINH CUA C O N G NGHE<br /> ta dd hd trg ede ti le chia 1:16 vd 1:32 vd khoang<br /> EPON 1 0 G I G A B I T<br /> cdch tmydn ddn cue dai ttdn 10 km va trdn 20 km.<br /> Quy cong suat<br /> Ldp edng sudt thdp PR/PRXIO hd trg suy hao chdn<br /> Chuan IEEE 802.3av dinh nghla hai kidu quy kenh 6 mue 20 dB eho mang PON v(Di ti Id chia Id<br /> cdng sudt ky hidu Id PX hoac PRX. Trong dd, ede 1:16 va khoang edeh tmydn ddn cue dai tten 10<br /> quy edng sudt PRX duge dinh nghla eho lOG-EPON km. Lcfp quy edng sudt trung binh hd ttg suy hao<br /> tdc do khdng ddi ximg hoat ddng d tdc do 10 Gbit/s chdn kenh 24 dB ddi vdi PON ed ti Id chia 1:16 vd<br /> dudng xudng vd 1 Gbit/s dudng ldn vd cde quy cdng khoang each Id 20 km hoac PON ed ti Id chia 1:32<br /> sudt PR ddnh eho tdc do ddi ximg vdi 10 Gbit/s 6 ca vdi khoang edeh Id 10 km. Quy edng sudt cao PR/<br /> dudng ldn vd dudng xudng. Mdi quy edng sudt dd PRX30 bd ttg suy hao chdn kenh 29 dB eho PON cd<br /> lai duge dae ta rd thdm bdng mdt con sd kdm theo ti Id chia 1:16 vd khoang each cue dai hon 20 km.<br /> dai didn cho phdn loai eua nd: Sd 10 the hidn quy<br /> <br /> Bdng 1. Cac loai quy c6ng suat trong lOG-EPON<br /> <br /> ™ ^ c d 6 d » ' •^Kc do dtt Khoang ' Tiie Suy hao ch^n<br /> Quf cdng su4t li€a dirtmg lifu dirdrng c§ch cvc chia kSnh cvc dai<br /> xu6ng (Gb/s) Ign (Gb/s) dai [km]<br /> TScO^dit PRIO 10.3125 10.3125 10 1:16 20<br /> li$u dSi PR20 10.3125 10.3125 20 1:16 24<br /> x&ng PR30 10.3125 10.3125 20 1:32 29<br /> Tdcd^dtf' rPRXroW 10.3125 1.25 10 1:16 20<br /> li$u khdng PRX20 10.3125 1.25 20 1:16 24<br /> dSixAng PRX30 10.3125 1.25 20 1:32 29<br /> <br /> <br /> <br /> 26 TAP CHI CNTT&TT KY 1 (8.2011)<br />  CONG NGHE VIEN THONG<br /> <br /> <br /> <br /> Dudng l£n Duong xuong Analog<br /> PXlO/20 PXlO/20 Y~ video<br /> 09<br /> c5<br /> NJ<br /> 0J<br /> Q1 Wavelength<br /> [nm]<br /> 1260<br /> <br /> <br /> <br /> <br /> 1360<br /> <br /> <br /> <br /> <br /> 1480<br /> 1500<br /> <br /> <br /> 1540<br /> 1560<br /> Dudng l£n<br /> 802. 3av<br /> <br /> <br /> Analog Dudng xudng<br /> 1 PRlO/20/30 video PR(X)10/20/30<br /> <br /> C<br /> <br /> f&<br /> C ^1 Dudng l£n<br /> PRXlO/20/30 1 We velengtti<br /> [nm]<br /> 1260<br /> <br /> <br /> <br /> <br /> 1580<br /> 1540<br /> 1560<br /> 1575<br /> <br /> 1600<br /> J<br /> a<br /> 3<br /> <br /> Hinh 4. Phan bd buoc song trong IG-EPON va lOG-EPON<br /> <br /> Phan bo bUdc song dinh nghia cho 1 OG-EPON ndm trong khoang tii<br /> Cde dai bude sdng dudng ldn vd dudng xudng eua 1260 den 1280 run eho tat ea eae loai quy edng<br /> lOG-EPON duoc phdn bd trong eua sd tmyen ddn sudt khac nhau. Tuy nhidn, do dai sdng ndy da bi<br /> quang eua sgi don mode (Hinh 4). Yeu edu tuong ehiem bdi dai bude sdng dudng ldn eua IG-EPON,<br /> thich va cung tdn tai vdi IG-EPON vd eae he thdng I OG-EPON boat ddng che dd burst tde dd kdp bdng<br /> phdn phdi video RF tuong tu da ban ehd eae lua edeh su diing TDMA tde dp khde nhau la lua chpn<br /> ebon ddi vdi bdng tdn bude sdng hudng dudng xuong duy nhdt de dam bao yeu edu cimg tdn tai eua I OG-<br /> trong lOG-EPON. Dai budc sdng dudng xudng trong EPON vd IG-EPON.<br /> 1OG-EPON phdi khdng trimg vd dam bao du dp phdn Sira loi thuan FEC<br /> edeh cdn thidt vdi ede dai bude sdng da lua chon Cdng nghe IG-EPON vd 1 OG-EPON su dung cdc<br /> trude dd eho cdc he thdng IG-EPON eung nhu eac each sua ldi thudn FEC khde nhau. Trong IG-EPON,<br /> he thdng phdn phoi video tuong tu, do do, dai bude ma FEC RS(255,239) dupe dinh nghia va la tuy chpn<br /> sdng dudng xudng dupe xdc dinh la dai budc sdng tir dp dung cho cde khung Ethernet. Trong khi dd, sua<br /> 1575 nm den 1580 nm eho moi loai quy edng sudt. loi thudn FEC la ydu edu bdt budc ddi vdi ede kdnh<br /> Trong khi dd, vdi hudng dudng ldn, yeu td kinh te d tde dp 10 Gbit/s trong 1 OG-EPON. Mat khac, thay<br /> (gid thdnh thiet bi) dupe xem xdt ddu tidn de quyet vi su diing RS(255, 239) cho ede khung Ethernet<br /> dinh su phdn bo bude sdng. Dai budc sdng dudng ldn nhu Uong IG-EPON, 1 OG-EPON dp dung loai md<br /> dupe chpn lua sao cho gidm bdt dupe anh hudng tan FEC RS(255, 223) eho cde day dd ddi ed dinh eua dii<br /> sdc ddng thdi cau hinh vd cdng nghd tuong img eho lieu ludng. Ddi vdi tmydn ddn dudng ldn trong 1 OG-<br /> I OG-EPON ONU EPON, tir ma FEC<br /> don gian va khdng 802.3 frame I FEC<br /> ddu tidn eua mdt<br /> qud ddt d^ giam burst dudng ldn<br /> a) FEC trong IG-EPON<br /> gid thdnh chimg dupe ddng ehinh<br /> cua he thdng. Vi TT F<br /> a E<br /> F H I F t 1 FE 1 F vdi phdn bdt ddu<br /> Data E Data P E<br /> t E Data l E Data C t<br /> vdy, dai budc sdng C C II<br /> e C eua burst nhdm<br /> b) FEC trong lOG-EPON eho phep bd gidi<br /> dudng len vdi dd<br /> Hinh 5. SiB I6i tmbc dudng xu6ng trong IG-EPON va lOG-EPON ma FEC tai OLT<br /> rdng 20 nm dupe<br /> <br /> <br /> <br /> TAP CHI CNTT&TT KY 1 (8.2011) 127<br />  CONG NGHE V I E N THONG<br /> <br /> <br /> <br /> <br /> lOG/lG<br /> icno locaoG<br /> MAC MAC MAC<br /> <br /> <br /> ^U<br /> GMn<br /> <br /> <br /> lOb/tTi<br /> PCS<br /> <br /> <br /> PMA<br /> <br /> PMD<br /> <br /> <br /> <br /> <br /> Hinh 6. cac dufing truyen du li§u trong OLT d ch6 dp hoat d6ng tdc dd kdp<br /> <br /> ddng bd hda ede tir ma trong moi burst. dp tai mdt diem nhdt dinhtirongphdn tdng PMD. Cd<br /> Hoat dong che do toe do ilu v i o tir kenh "OGPMA DIHI vio tu kenh<br /> <br /> PON dudng len Diu n den PON dudng len<br /> <br /> (aptfoul)<br /> IGPMA FlModetecw<br /> 1CdHKiar ICTUadL/i ICLA<br /> <br /> a) Ph&t tdch trong miSn quang b) Phdn tdch trong miin difn<br /> Hinh 7. Cdu hinh PMD tdc d6 k6p<br /> <br /> <br /> <br /> 2 8 I TAP CHI CNTT&TT KY 1 (8.2011)<br />  CONG NGHE VIEN THONG<br /> <br /> <br /> <br /> <br /> SO SANH GICTA lOG-EPON VA EPON<br /> sdng phdn phdi video RF tuong tu, ngupe lai, bude<br /> Mang tiny cdp quang thu ddng Ethernet hidn nay<br /> sdng dudng len eua 1 OG-EPON dupe cdp phdt ttong<br /> (IG-EPON) ehi cung edp tde dd du lidu ddi xiing 1<br /> cua sd bude sdng tii 1260 den 1280 nm, hodn todn<br /> Gbit/s eho dudng ldn vd dudng xudng. Trong khi<br /> trimg lap vdi mdt phdn dai bude sdng dudng ldn<br /> do. mang tiruy cdp quang thu ddng Ethernet 10<br /> ttong IG-EPON. Cdc dac diem khde bidt ehinh giua<br /> Gigabit (1 OG-EPON) b6 tiro ca hai che dp: chd dd<br /> cdng nghe I OG-EPON vd IG-EPON dupe tong ket<br /> ddi xiing vdi tdc dd cao bon (dudng len vd dudng<br /> ttong Bang 2.<br /> xudng 10 Gbit/s) vd chg dd khdng ddi xiing vdi tdc<br /> dp dudng ldn 10 Gbit/s vd tdc dd dudng xudng I Tai lieu tham Ichao<br /> <br /> Gbit/s. Md dudng cho 1 OG-EPON va IG-EPON ldn [1]. IEEE, "802.3av-2009 IEEE Standard for Infonnafion<br /> lupt la 64B/66B vd 8B/10B. Nhd su dmig bd ma Technology - Part 3: CSMA/CD Access Method and Physical Layer<br /> dudng 64B/66B hieu qua hon, dd du ma trong 1 OG- Specifications, Amendment h Physical Layer Specifications and<br /> EPON dupe giam xudng ehi edn 3% so vdi 20% tirong Management Parameters for 10 Gb/s Passive Optical Networks,"<br /> IG-EPON. Ngoai ra, trong mang 1 OG-EPON, mdt loai October 2009.<br /> quy cdng sudt bd sung mdi (PR30/PRX30) dupe dua [2]. "lOCSb/sEthemetpassiveopticainetwork,"IEEEP802.3av<br /> vdo dl hd trp ti Id chia 1:32 vdi khoang edeh toi da Task Face: http://www.ieee802.org/3/av/index.html<br /> ti-dn 20 km. Thay vi Id tiiy ebon nhu tirong ede he<br /> [3] K. TANAKA, A AGATA AND Y. HORIUCHI, "EEE 802.3av<br /> thdng IG-EPON, vide thuc hidn sua ldi tmdc (FEC)<br /> lOG-EPON Staxlardization and Its Research and Development<br /> Id ydu edu bdt budc tirong mang 1 OG-EPON d6 hd<br /> Status," IEEE Joinal of Lightwave Technology, Vol.28, No. 4,<br /> tirp tdc dd tmydn ddn 10 Gbit/s vd quy edng sudt<br /> February 2010.<br /> mdi. Trong dd, ma Reed-Solomon (255, 223) dupe<br /> [4] M. HAJDUCZENIA, H. DA SUVA, AND M. iVIOTEIRO,<br /> dp dung bat bude eho du lidu tde dd 10 Gbit/s tirong<br /> "Development of 10 Gb/s EPON in EEE 802.3av," IEEE<br /> 1 OG-EPON; trong khi ma RS(255, 239) Id tiiy chpn<br /> Communication IVIagazine, July 2008.<br /> tirong IG-EPON. Bude sdng dudng xudng eua 1 OG-<br /> EPON dupe phdn bd trong eua so bude sdng ndm [5] White paper: "Introduction to EEE 802.3av lOGblt/s<br /> <br /> giiia 1575 nm vd 1580 nm vd ndm ngodi ddi bude Ehternet Passive Optical Networks"ai www.pmc-slerra.com<br /> <br /> [6] ZTE white paper: "lOG EPON<br /> Bang 2. So sanh giua lOG-EPON vS IG-EPON<br /> —Unleashing the Bandwidth Potential"<br /> D$c dilm IG-EPON lOG-EPON<br /> Tiiu chuin 802.3ah 802. iav [7] J. KANI, AND K. SUZUKI,<br /> Dii budc Budnglin 1260-1360 nm 1260-1280 nm "Standardization Trends of Next-generation<br /> sdng ^i&r^xuSng 1 4 8 0 - 1500 nm 1 5 7 5 - 1580 nm<br /> Ticdfda-li^u doixijmg: lOG/lOG 10 Gigdjit-class Passive Optical Network<br /> doi xijmg: IG/lG<br /> (/hidng ISn/dudttgxuSni^ khong doi ximg: lOG/lG Syztems," NTT Technical Review, Vol.7,<br /> T6C df duing 1.25 Gbit/s 10.3125 Gbit/s<br /> Ma hda dn hifu 8B/10B 64B/66B November 2009.<br /> (do du mi hda) (20%) (3%)<br /> 3 [8] C. CHEN, Z. CHAIR, AND B.<br /> S6 liefng lofi quj> cdng 2<br /> (PR 10/20/30; VELIVIURUGAN, "lOG EPON: Next<br /> suit (PX 10/20)<br /> PRX 10/20/30)<br /> Tl lochia 1:16 1:16 hoac 1:32 Generation Ethernet Passive Optical<br /> tuy chpn bat bupc Networks,"CFaUFOEC, JThASO, 2009.<br /> FEC<br /> RS(225,239) RS(225,223)<br /> <br /> <br /> <br /> <br /> TAP CHI CNTT&TT KY 1 (8.2011) 29<br />