Iimveliso ze-WiFi zifuna ukuba silinganise ngesandla kwaye silungise ulwazi lwamandla e-WiFi kwimveliso nganye, ingaba wazi kangakanani malunga neeparamitha zokulinganisa i-WiFi?Makhe ndikwazise apha ngezantsi:
I-1, i-TX Amandla: ibhekisela kwimveliso engenazintambo ehambisa i-eriyali amandla okusebenza, iyunithi yi-dBm.Amandla othumelo olungenazingcingo lumisela amandla kunye nomgama wemiqondiso engenazingcingo.Okukhona amandla amakhulu, kokukhona umqondiso womelele.Kuyilo lwemveliso engenazingcingo, kukho amandla ekujoliswe kuwo njengesiseko soyilo lwethu, kwisiseko sokuhlangana nepleyiti ye-spectrum kunye ne-EVM, amandla amakhulu othumelo, kokukhona ukusebenza ngcono.
2. I-RX Sensitivity: iparameter ebonisa ukusebenza kolwamkelo lwento eza kuvavanywa.Okukhona uvakalelo lolwamkelo lungcono, kokukhona imiqondiso eluncedo kakhulu eya kuthi ilufumane kwaye kokukhona inkulu ukugqunywa kwayo ngaphandle kwamacingo.Xa uvavanya uvakalelo lokufumana, yenza imveliso kwimeko yokufumana, sebenzisa isixhobo sokulinganisa i-WiFi ukuthumela iifayile ezithile ze-waveform, kwaye imveliso ifumana.Umgangatho wamandla wokuthumela unokuguqulwa kwisixhobo sokulinganisa i-WiFi de ireyithi yempazamo yepakethe (PER%) yemveliso idibana nomgangatho.
3. Impazamo yokuphindaphinda: imele ubukhulu bokutenxa kophawu lweRF ukusuka kumbindi ojikelezayo wejelo apho umqondiso ukhoyo (iyunithi yePPM).
I-4, i-amplitude ye-vector yephutha (EVM) : sisalathisi sokuqwalasela umgangatho wesignali yokumodareyitha, iyunithi yi-dB.Incinci i-EVM, ingcono umgangatho wesignali.Kwimveliso engenazintambo, i-TX Power kunye ne-EVM inxulumene, inkulu i-TX Power, inkulu i-EVM, oko kukuthi, umgangatho wesignali umbi kakhulu, ngoko ke kwizicelo eziphathekayo, ukuthatha i-compromise phakathi kwe-TX Power kunye ne-EVM.
5. Ithemplate ye-frequency offset yesignali edlulisiweyo inokulinganisa umgangatho wesignali edlulisiweyo kunye nokukwazi ukuphazamiseka kokuphazamiseka komjelo osondeleyo.Itemplate ye-spectrum yesignali elinganisiweyo ifanelekile ngaphakathi kwetemplate ye-spectrum eqhelekileyo.
6. Ijelo, ekwabizwa ngokuba litshaneli kunye nebhendi yefrikhwensi, lijelo lokuhambisa uphawu lwedatha kunye nophawu olungenazingcingo (i-electromagnetic wave) njengomphathi wothumelo.Iinethiwekhi ezingenazintambo (ii-routers, i-AP hotspots, amakhadi angenantambo ekhompyutheni) anokuqhuba kwiindlela ezininzi.Kuluhlu lweesignali ezingenazingcingo zezixhobo ezahlukeneyo zenethiwekhi engenazingcingo kufuneka zizame ukusebenzisa amajelo ahlukeneyo ukuthintela ukuphazamiseka phakathi kweempawu.