Chidziwitso

Kwa protocol ya IEEE802.11 mu WiFi, mafunso ambiri amachitidwe amachitidwa, ndipo chitukuko cha mbiriyakale chikufotokozedwa mwachidule motere.Chidule chotsatirachi si mbiri yokwanira komanso yatsatanetsatane, koma kufotokozera ma protocol omwe amagwiritsidwa ntchito pamsika.IEEE 802.11, idakhazikitsidwa ...

Kuyambira Nkhondo Yachiwiri Yapadziko Lonse, kuyankhulana opanda zingwe kwakhala kofunika kwambiri chifukwa cha ntchito zake zankhondo, zomwe zathandiza kwambiri kuchepetsa kufalitsa uthenga m'chilengedwe.Kuyambira pamenepo, kulumikizana opanda zingwe kwakhala kukukula, koma kulibe njira zambiri ...

Optical fiber ndi njira yamawaya yotumizira ma siginecha a kuwala.Timatcha zizindikiro zosafunikira zamagetsi mumsewu "phokoso Phokoso mu njira yolankhulirana limayikidwa pamwamba pa chizindikirocho.Pamene palibe chizindikiro chotumizira, palinso phokoso mu njira yolumikizirana.&#...

Njirayi ndi chipangizo choyankhulirana chomwe chimagwirizanitsa mapeto otumizira ndi mapeto olandira, ndipo ntchito yake ndi kutumiza zizindikiro kuchokera kumapeto kwa kutumiza mpaka kumapeto.Malinga ndi ma media osiyanasiyana opatsirana, mayendedwe amatha kugawidwa m'magulu awiri: mawayilesi opanda zingwe ndi mawaya ...

M'nkhaniyi ndikamba za Communication System Model mwatsatanetsatane ndikuphatikiza magawo awo a 5, (1) Coding source ndi decoding, (2) Encoding and decoding of channels, (3) Encryption and decryption, (4) Digital modulation and kutsitsa, (5) Kulunzanitsa.Tiyeni tigwere mozama̷...

1. Gulu la bizinesi yolumikizirana Malinga ndi mitundu yosiyanasiyana ya mautumiki olumikizirana, njira zoyankhulirana zitha kugawidwa m'njira zoyankhulirana zapa telegraph, njira zoyankhulirana ndi telefoni, njira zoyankhulirana za data, ndi njira zolumikizirana ndi zithunzi.Chifukwa mafoni amalumikizana ...