split-mount installation with single-point building ground
Tampilkan postingan dengan label WIMAX. Tampilkan semua postingan
Tampilkan postingan dengan label WIMAX. Tampilkan semua postingan
GPS Installation Guidelines
A GPS unit is required for the synchronization of the TDD radio network. With the TimeDivision Duplex TDD operation each sector should trans...
WiMAX PKI Hierarchies
WiMAX technology has two classes of PKI hierarchy, the device hierarchy that identifies devices and the server hierarchy that identifies AA...
Hybrid Automatic Repeat Request (HARQ)
Hybrid ARQA Hybrid ARQ system consists of combination of error control mechanism namely Forward Error Correction and Automatic Repeat Reques...
Automatic Repeat Request (ARQ)
Automatic Repeat Request (ARQ)A Layer-2 sliding-window based flow control mechanism. Per connection basis. Only effective to non-real-time a...
MAC PDU Transmission
Fixed WiMAX (802.16d) MAC PDU TransmissionMAC PDUs are transmitted in PHY bursts. A single PHY burst can contain multiple. Concatenated MAC ...
IEEE 802.16d MAC Addressing & Identifiers.
IEEE(802.16d) MAC Addressing & IdentifiersSS has 48-bit IEEE MAC address BS has 48-bit base station ID Not a MAC address 24-bit operator...
802.16 MAC: Overview
Fixed WiMAX (802.16d) MAC OverviewPoint-to-Multipoint. Metropolitan Area Network. Connection-oriented. Supports difficult user environments....
802.16d PHY – FDD
Fixed WiMAX (802.16d) PHY - FDDUplink & Downlink Channels are on separate frequency. Downlink is transmitted in bursts Simultaneously su...
802.16d PHY – TDD
Fixed WiMAX (802.16d) PHY - TDDUplink & Downlink transmission shares the same frequency. Uplink & Downlink transmission are separate...
802.16d PHY - Framing
Fixed WiMAX (802.16d) PHY - FramingFrame consist of Downlink Subframe & Uplink SubframeDownlink Subframe begins with information necessa...
802.16d PHY - Overview
Fixed WiMAX (802.16d) PHY - OverviewThe purpose of the PHY is the physical transport of data Framing mechanism supports adaptive burst profi...
Broadband Wireless Access Technologies
Broadband Wireless Access Technologies Local Multipoint Distribution Services (LMDS) Multi-channel Multipoint Distribution Services (MMDS) C...
Ways of providing Broadband Access
Ways of providing Broadband Access?Copper Wire (DSL) Optical Fiber Cable Wireless Access System. Satellite Communication System Why Broadba...
What is Broadband
Q: What is Broadband?Ans:Broadband comes from the words "broad bandwidth" and is used to describe a high-capacity, two-way link be...
16-QAM,64-QAM Modulation
16-QAM,64-QAM The number before QAM (for example 16QAM) refers directly to the number of decision points in the constellation. Meaning, 256Q...
Abbreviations
Abbreviations used in WiMAX Section AAA Authentication, Authorization and Accounting AAS Adaptive Antenna System also Advanced Antenna Sy...
OFDMA
OFDMATDD Frame StructureOFDMA is two-dimensional with users sharing in both the time and frequency domains.This allows scheduling and optimu...
Cyclic Prefix (CP)
Cyclic Prefix (CP)Cyclic prefix (CP) mitigates multipath fading and inter-symbol interference (ISI) at the price of increasing bandwidth.Del...