C S SAP ) LOP con hOMU Ogc M
A throughput (kbps)
}CET LUAN VA HU'ONG PHAT TRIEN DE TA
Ket luon
Luan van da giai quyet &we the yin a co ban &Km dat ra a phan dau bao gam: Tong quan ve cong ngb8 WiMAX, cac dac diem va hoat dOng cua WiMAX, nhang cu so quan tong caa WiMAX, cac chuiin WiMAX, cac ky thuat duqc ung dung trong WiMAX. Chit yeu top twig a cac khia earth sau: Hoot dOng mia WiMAX cho yeu tap trung o lap MAC (qua trinh truy nhap mang, ca the you clu va cep phat bang th8ng, ea cite lap ljch djch vv. Nhon xat ve lap dich vu VoIP trong chuy'en giao lien mang.
Crng phit trien de tai
Nh&ng van de &Km de cap trong luk van nay meri chi tap trung chit yeu vao 1y thuy8t ea ban dm chart IEEE 802.16, con han the a pham vi nghien ciru. Vi voy trong thai gian tai huang phat trien dm de tai se m& rOng tap trung nghien eau cac khia earth }chic nhau ctia chuin IEEE 802.16 danh cho ang dung di dOng — WiMAX di dOng (IEEE 802.16e). Khi ma WiMAX di dOng la giii phip mang khong clay bang th6ng rung voi kien trac mang linh hoat nhu point to point, point to mutilpoint, mesh.
NhUng van de dugc trinh bay trong luan van nay van con han the a pham vi, chi tap trung vao chuin IEEE 802.16 danh cho cac ang dung truy cap bang thong rung
co djnh (IEEE 802.16-2004). Do de, trong thtri gian tai huang phat trien dm de tai se tap trung vao nghien Gifu chain IEEE 802.16 danh cho theling dung di dOng — WiMAX di dOng (IEEE 802.16e).
WiMAX di dOng la giai phap khong day bang rung cho phep phi' song mang khong day va c8 djnh rho cong nghO truy nhap v8 tuyen bang rang ten digit rOng veri kien true mang linh hoat (Point-to-Point, Point-to-MultiPoint, Mesh).