Imikhiqizo ye-WiFi isidinga ukuthi silinganisele mathupha futhi silungise imininingwane yamandla e-WiFi yomkhiqizo ngamunye, ngakho-ke kungakanani okwaziyo ngamapharamitha wokulinganiswa kwe-WiFi?Ake ngikwazise ngezansi:
I-1, Amandla e-TX: ibhekisela kumkhiqizo ongenazintambo odlulisela amandla okusebenza othi, iyunithi yi-dBm.Amandla okudlulisa okungenantambo anquma amandla nebanga lamasignali angenantambo.Lapho amandla amakhulu, isignali inamandla.Emklamo womkhiqizo ongenazintambo, kunamandla okuhlosiwe njengesisekelo somklamo wethu, esimweni sokuhlangabezana nepuleti le-spectrum kanye ne-EVM, uma amandla okudlulisela ekhudlwana, ukusebenza kangcono.
2. Ukuzwela kwe-RX: ipharamitha ebonisa ukusebenza kokwamukela kwento ezohlolwa.Uma ukuzwela kokwamukela kuba ngcono, amasiginali awusizo kakhulu azowathola futhi abe mkhulu ukumbozwa kwayo okungenantambo.Lapho uhlola ukuzwela kokwamukela, yenza umkhiqizo ube sesimweni sokwamukela, sebenzisa idivayisi yokulinganisa ye-WiFi ukuthumela amafayela athile e-waveform, bese umkhiqizo uthola.Izinga lamandla okuthumela lingashintshwa kudivayisi yokulinganisa ye-WiFi kuze kube yilapho izinga lephutha lephakethe (PER%) lomkhiqizo lifinyelela izinga.
3. Iphutha Lefrikhwensi: imele ubukhulu bokuchezuka kwesiginali ye-RF ukusuka kumafrikhwensi amaphakathi wesiteshi lapho isignali itholakala khona (iyunithi ye-PPM).
I-4, i-amplitude ye-vector yephutha (EVM) : iyinkomba yokucabangela ikhwalithi yesiginali yokushintshashintsha, iyunithi yi-dB.I-EVM encane, ingcono ikhwalithi yesiginali.Emkhiqizweni ongenazintambo, i-TX Power ne-EVM ihlobene, i-TX Power enkulu, i-EVM enkulu, okungukuthi, ikhwalithi yesignali ibe yimbi kakhulu, ngakho-ke ekusebenzeni okungokoqobo, ukuthatha ukuvumelana phakathi kwe-TX Power ne-EVM.
5. Ithempulethi ye-frequency offset yesignali edlulisiwe ingakala ikhwalithi yesiginali edlulisiwe kanye nekhono lokucindezela ukuphazamiseka kwesiteshi esiseduze.Isifanekiso se-spectrum sesiginali elinganisiwe sifanelekile ngaphakathi kwesifanekiso se-spectrum esijwayelekile.
6. Isiteshi, esaziwa nangokuthi ishaneli nebhendi yefrikhwensi, isiteshi sokudlulisa isignali yedatha enesignali engenantambo (igagasi logesi) njengesithwali sokudlulisa.Amanethiwekhi angenantambo (amarutha, izindawo ezidonsela kuzo i-AP, amakhadi angenawaya ekhompuyutha) angasebenza eziteshini eziningi.Ebangeni lesignali engenantambo yezinsiza ezihlukahlukene zenethiwekhi engenantambo kufanele uzame ukusebenzisa amashaneli ahlukene ukugwema ukuphazamiseka phakathi kwamasignali.