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IEEE 802b Performance Evaluation: Cnegene of Theet-a, Smuain and Experimna RslsR G Garroppo, Stefn orda Stefan Luci, Fran Rusoet fnrmin Egrn Universi of Pisa, Vi Cu -156, Pi, AY

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In , g ss ew lo mmn s e atnto ofdrdao e ork d anfar Aog he vill thlge I 821 r )] he tat gnd l n a een wy ed pr sy exten cnei edi e ied inractr o mie aob s L PDA . Thwie fthi l ha rin h cf w T Gr d e eig ofew t-; n paulr the Tk Goup . 82 [4] a ety 0 5, a vt p hghe x a . o go 02n h ed work or e dn 0 M a n gy ad mi bad 802lI d 801 g ad 54M r l lk 802.Ib Ym wi nne t n bt epri l th eienil t r te net few asTh dena me 0 ro-co o ace mdum Dribe Co n (C) r n evew o 82 ewr cu o dt rip o pratn he rer rer [6.In h er ineg te ai odahel y e bc ace ur h D tus ndg he RS/CS ehn heoriginl ntu f w t j i mS rt mli t r, comang he btne

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in expmly t dpd mlatie anll A r h h ioed we extensv i aal lat he te-e evaion o y nd er th i cs chm, ie om he .ool eti l d [7 Says u t ere -tp UP paylod z d mu iee oo or a f he fou pobeda r v i 81b wor I 2 5.5a I Mp. Siain ls o th 8.1 prm hav n ardy bne r rw [8 uig N NSmul l [9J ma an . I ap rn l t f f 802b rrie g P Moee e im0] hh r s e o d t e ba anl an o mncat eor I rclr i th ONE muatio ol e th horta .b h prn e heetl i t e FHSSnd e SSS hyical er a I Mb, m n o a m u A al e ulo im e mximmgood aabl h an eD pd z referi SSS lye II b Al ili nd nail r vl m ma u o an l st-b e woeen 8. I nung rt a

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t ts btned n m exemet aayis h a those eene i II) an 2 Al anes ave ben c out i h asumti dea e codt. I xperimetal ly, ditn wa btnd iai h nrknodes in h e rm wit n hyical bwe them, eg no thr tin wasrsmtng ierfering ce a cnatl

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Investigation 0211b BS CpacityThe t ls i osed te deiat f

hrial maxmum godu ace nta t UP tc To h ai, w Fg whc o e i d tn ofa gl a ver , an to a recev fw y e eat ndgmn K ram inditdD fl n ume headr m D w t t Ph le i s ardt uned t nly oio he d t vted t e tamissn o "us-evel atahe vs o e pm i fr erlyin al a; Tab I lets a f DSS phyc ay i E 801 b. B- Tim rndom i R tmes SlTm wer R anom v w fom unom dtin r h ial [OCW], aCW for tei Wiw T vu W i er ic an ine t f alu n

e ae CCWCmx; CWmin anm r dend y e tandd fo ch ir, vlue fr SSS r rod abe Inially W i t qual in, ad i mh as _1 (wt w ranges fo t 10eh ie r is an el te Afm tanmio ieid b e bne nACK wh a gn timut. eauae r

oud ai fh E 802.1b sym am ha ony n tn (STA) hs ti iie tat ter re lsonn d h, qa CWm ghoute tamsin th we es dat ames.e ale of th ko Tm i he al toSlm*m2, in unifl .F lea t lig eie r ni:=_TwCW F + z SloTm To ob iecy a it b h e neessay t opute T iclg a he vhartd h ead ha h hser ta s Fg. ). I see o ameain h s rssing, hae a r a

lok lve bt at i ssa

en me am alo: e P har e Pd h LLC h MAC r d he k Sqen ld ad laty h PyiaHar P nd b a rab aeaer wih m 24 By a e an daa q Mbp a l e hr nrman ae tmited a he data rte elted b (, 2 55 I Mps) uppg hv N a rat I Mb T l ua o:

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rmii plia blk f ionou ir i a ed ere ue h na-aon qa to 4 (f he ssn fe

1 Mbp ) pu 19 J r Mp PPanm). T pc u ra o-y re s e ize f h bk r- vle E hi ha o b derned am is 14 B ani M the let een hsl NIC d r) lu a C lea (i se an trmsi r D ame. I o anmi m TKs ten l t 9 ec uppong ae a In rte o Mbp r er Ssiui ae vlu n q I h rn n at ame e presn i e I Mbps e)

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he mu gdp hebe e user lever en e o the N t M n u ce)mipie y e ecin rte g 3 how the be-

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t an or imd wh 3% fo te e o 1 actve stto an t t 8% in e 5 SA e sa cluin a e a wel oe n he iht that e aua te rt avabe uing OET Mdeesmlaton to i ad ao it a a tl inetgt erfonc evaluin f 0 wlace etwk

4 Expemenal AnysT at i rente i d n te xpeimn ppch o prfo he nli w st up nr d detd in t vi cdnce eteen he ertca gputachive b ingle P soue t madn he eed is ms b

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O cc Pon a i d Pnm I sstp P whic at P si Lnbd Pentl ptp hih Pce W hoe MGN } s t c gtion apli, bcae of it wide niit t f yes o ttsa prp e gen-te csic i ie pe s). Te otd ietl te U, has uto ning Mp lt itc h P i i qe wth aalgu e cs cnge ora 00Ms ll nnecon

Th t f ame w aim at verigwht he m gneton e ctl rduced by MEN evalug iwh e ee re acct it e qu-m minly P I o n xperien scn th mpl pit t pint iectin tw th UDP UP ikh b t e ets ri themg apliao have en ped at the laye At t her emity o e li, t d k re pd bth th pplicad he lik lay dng hi tims.Th wd pointtpt ectn pe alt e usd tls houthe nun of th WL monnts n orde tv min f he gen te ue thappicon el d e op evces, a piewis

te c t ha een con o gntionrain he l e t inteals. Whn ning lg _g e e h no oed ny ireen e o tc e a gnar id tat obd at th ecing e rate te odr th at o t IEEE 82b teh-no siatin bc dierent en -ng v ml pcktW ha eeate he e t apng the maltsie p z generbe by M e 2

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eng r vtid oping eren pegeeaio d e ts. H ul fis ralss e ded h anme b ce pe sens i oU -nro b 2000. Iee F. 7 hhlgh h thppln level ereen llow t pre w-ut los p o e second tp M

In expnt y, lato ha bneq latvlwt n e li woIE 802 NCs Luent O Gld and a D-Lnk DWL6A baSd Pipet T a-n apign, er vla the pe-ace e EEE02l W d ps p t d prfe a t o divee EEE 8021 N u ive. he it eul ee t limd ut iel deece ext mg eo ok d In moe el, cnieg epl epe n Fg. 8, p rese teUDP tnt d evd sing he w dr PCMCA 0l dters in the UD oueot The p bind ing noinn a an UDP BR gneraed MGE 00 5.5 M egte ete t L evel ( te mt and receve sde) a e ppl-to lv civer e e to ei e of psibose nside he ink t.T perms av been d r r pyad sizs h t oF. efero UPpa z f 64 s, ndeig h m of200 on e nina ae gnao ud we nys pned n e ae pgTe upper p s d pcche y h Lucent O Go nwodat, wle he e ne obd g a -Link DW6 b on P.5cpet The O-

no G N l apph he maxiri vale f 057 Mbp ey sel; inde misson rate, ed e the p 0330 c but 056 Mbps. O t e d thD DW650 ls o rh sgh hghehghpu evn hgr hn oetc oeat 09 Mp i 000 cote a a a ue f6 y b csn te ecae h d bl te genea-ti pce s ae i e s 4 ind e aket lat t t generati 0kbps 00 hch s loe h tb0 lii ine ae Tl III ieeeaue g e i he t iernD yd sze an e niderdEEE80. Ns nmg t lghtly highral n by te P bs N e to e Oioco e

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5 Comparison of esus h cnusio o ur sdy, w p t to rg e ap rteTh rl r qlivy izd n Fg 9her e al ce of gpu vpcke sze whe th" daa ra at I is cire. In te am we ls rsu

fo ket es bid xperimnluin eith roo Gol o he D-Lnk DWL650Cs o by multio usi OPNE is s asis cr also a f lue of k ).A an obse m th av a enoagig onee o he saraton gdput ob-n uig ifrnt ohes whh aow sto ssme the aprah mos quvale fom lt oi o vi e V mzs uie c og e sus p byt de a. I ilar, a ot hlhl sm su a ig ONhi io i b otd omag x a

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aloa Value God NIC

[M] C [Mbps] (OPNE[Be [Mb),] 7 09 0 4576 3. 6 . 6. .

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mu

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goodp g .1 b a benoned prfg a i g

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7 Ackowledgemeth ok s ben cr out ne h nilsup Il iity fo Euatn ei Re (IUR in awok VICOM jet

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