a brief overview on wimax and its implementation
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8/7/2019 a brief overview on WiMAX and its implementation
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Abstract
� WiMAX Refers to broadband wireless
networks that are based on the IEEE
802.16 standard, which ensurescompatibility and interoperability.
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Content
� What is WiMAX.
� Features of WiMAX.
� WiMAX in Bangladesh.
� bracNet¶s strategy and services .
� Technology supported by bracNet.
� bracNet¶s Network Architecture.
�Frequency used by bracNet.
� Network Management System of bracNet.
� Installation of a WiMAX Radio/CPE.
� Conclusion.
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What is WIMAX
� WIMAX stands for Worldwide
Interoperability for Microwave
Access(IEEE 802.16).� Frequency bands: 2 to 11GHz for licensed
and 10 to 66GHz for unlicensed bands.
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Features of WiMAX
� WiMAX Standards: fixed WiMAX (IEEE 802.16-d) and
mobileWiMAX (IEEE 802.16-e).
� WiMAX can provide broadband wireless access (BWA)
up to 30 miles (50 km) for fixed stations, and 3 - 10miles (5 - 15 km) for mobile stations.
� Data rate:
For fixed standard up to 75 Mbps per subscriber.
For mobile applications 30Mbps per subscriber.
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WiMAX in Bangladesh
bracNet is the 1st company in Bangladesh usingWiMAX
They are using fixed WiMAX, vendor Alvarion
6 BS (POP) covering Dhaka city. These are in
Mohakhalli, Uttara, khilkhet, Mirpur, Motijhil &Dhanmondi
Each BS covers 25km in 90 degree angel
About 250 SS (CPE) under each BS (LOS)
Datarate:
For CPE 10 Mbps DL and 7.3 Mbps UL
For POP 17.5 Mbps
Covarage area: Dhaka, Sylhet & Chittagong.
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bracNet¶s strategy and
services
� To provide reliable, widespread,convenient and cost effective broadband
internet services.
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Technology supported by
bracNet
� Uses state-of-the-art WiMAXtechnology.
� Quality of Service Mechanisms used
with WiMAX.
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bracNet¶s Network
Architecture
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bracNet¶s Network Architecture-
Functional Entities
� Base station (BS)
� Access service
network (ASN)
� Access service
network gateway
(ASN-GW)
� Connectivity servicenetwork (CSN)
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Frequency used by bracNet
� From BTRC 98 MHz Frequency of 3.5
GHz is used
� Frequency range for this 98 MHz is 3300MHz to 3398 MHz
� This 98 MHz is divided into two parts 56
MHz for large cells and 42 MHz for small
cells
� Channel bandwidth is 3.5 MHz
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Installation of a WiMAX
Radio/CPE� Site survey- Whether the Base Station
is Line of Sight/ Non Line of Sight with
the CPE.
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Installation of a WiMAX
Radio/CPE� The installation process:
� The place is visited first where the
radio/CPE will mount.� CPE mounting, cabling.
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Installation of a WiMAX
Radio/CPE� The installation process (Continued):
� Configuration of following parameters-
� 1. Registration parameters:
� a. Common name:
� b. Organization:
� c. Address:
� d. Country:
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Installation of a WiMAX
Radio/CPE� The installation process (Continued):
� 2. Base Station ID Parameters:
a. Operator ID:16.17.18
b. Sector ID:19.41
c. Cell ID: 21
d. Central Frequency: xyz MHz
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