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mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi

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P B<br />

E=<br />

F<br />

BS<br />

rx min<br />

, sa<strong>da</strong>c B-signalis bazaa.<br />

<br />

simboloebis ga<strong>da</strong>cemis siCqare fasdeba C/R<br />

fardobiT, sa<strong>da</strong>c C _ informaciis ga<strong>da</strong>cemis siCqarea,<br />

xolo R_gamoyenebuli xelSeSlamdgradi kodis<br />

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rTuli signalis speqtris siganesTan Semdegi<br />

FR<br />

gamosaxulebiT: C= .<br />

B<br />

aRniSnuli formuliT miviRebT s/x fardobis<br />

gamosaxulebas simboloze ukukavSiris arxSi:<br />

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mocemuli gamosaxuleba asaxavs s/x fardobis<br />

<strong>da</strong>mokidebulebas sabazo sadguris (BS) mimReb<br />

mowyobilobaze.<br />

CDMA sistemaSi fiWebis seqtorizacia saSualebas<br />

iZleva, rom gavzardoT qselis gatarebis unari—<br />

aqtiuri abonentebis ricxvi fiWaSi:<br />

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,<br />

sa<strong>da</strong>c M_ aqtiuri abonentebis ricxvia fiWis<br />

erT seqtorSi; m_ seqtorizaciis koeficienti.<br />

seqtorizaciis koeficienti Tavis maqsimalur<br />

SesaZlo mniSvnelobas aRwevs mxolod erTseqtorian<br />

fiWaSi: m=1. samseqtorian fiWaSi m realuri moqmedi<br />

mniSvneloba Seadgens maqsimumi<strong>da</strong>n 85%: m=2,55.<br />

ganvsazRvroT mosazRvre fiWebis wvlili saerTo<br />

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nax. 1.11. energetikuli Tanafardoba CDMA<br />

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sistemaSi<br />

xelSeSlebis fonze. movaxdinoT erTseqtoriani<br />

fiWis analizi ma 1 , M M s .<br />

miRebuli Sedegi<br />

samarTliani iqneba mravalseqtoriani fiWisTvisac.<br />

CavTvaloT, rom qseli Sesdgeba erTnairi zomis<br />

fiWebisagan, abonentebi ganlagebulni arian Tanabarzomieradi<br />

qselis teritoriaze. Sefaseba movaxdinoT<br />

eqvsi fiWisTvis. nax. 1.12-ze R—warmoadgens fi-<br />

Webis r adius s ; S= R 2 _ fiWis farTobia;<br />

0<br />

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30 _fiWebis centrebs Soris manZilia (BS-<br />

is antenebs Soris); (r, ) _ <strong>mobiluri</strong> abonentebis<br />

f<br />

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