wireless community
DESCRIPTION
Wireless Community. Ajmal Nazir Green Dot Ltd. AGENDA. Introduction Wireless Network Coverage Spectrum Planning NMS (Network Management System). “A Year is an eternity in Networking”. Wireless Define our community Geographically based Interest based Define our Scope Cost Coverage - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Wireless Community](https://reader036.vdocuments.us/reader036/viewer/2022062518/5681465b550346895db37ae8/html5/thumbnails/1.jpg)
Wireless Community
Ajmal Nazir
Green Dot Ltd
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Green Dot Ltd
AGENDA
Introduction Wireless Network Coverage Spectrum Planning NMS (Network Management System)
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Green Dot Ltd
“A Year is an eternity in Networking” Wireless Define our community
Geographically based Interest based
Define our Scope Cost Coverage services
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Green Dot Ltd
Wireless Networking
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Green Dot Ltd
Wireless Network
Point to Multipoint
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Green Dot Ltd
PTMP
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Green Dot Ltd
PTMP and PTP
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Green Dot Ltd
Connecting to the Internet
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Green Dot Ltd
Connecting to the Internet
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Green Dot Ltd
Redundancy/Load Balancing Mesh protocol Capacity Redundancy scalability
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Green Dot Ltd
Simple Mesh Network
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Green Dot Ltd
Access Point
Radio for ACCESS network (2.4G) for the users
Radio for BH network (5G) for the AP’s (PTP or PTMP)
In built switch Outdoor enclosures
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Green Dot Ltd
Coverage
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Green Dot Ltd
Wireless Coverage
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Green Dot Ltd
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Green Dot Ltd
Coverage
FREE SPACE Budget = 90db Window (3db) Wall (6-10db) 1/2/3 walls Roof(metal/wood) (3-10db) Multipath (4db)
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Green Dot Ltd
Distance ChartBudget (db) Distance (m)
90 300
84 150
78 75
72 37.5
66 19
60 9.5
54 5
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Green Dot Ltd
Coverage Analysis
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Green Dot Ltd
RF Mapping Tools
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Green Dot Ltd
Spectrum Planning
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Green Dot Ltd
802 Standards
802.11/a/b/g/n 802.16/a/d/e/m 802.20 802.1x
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Green Dot Ltd
2.4 Spectrum 802.11b/g
Channels 1 to 11 Each channel is 22 MHz in size Channel spacing is 5 MHz
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Green Dot Ltd
2.4 Spectrum
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Green Dot Ltd
Channel Planning
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Green Dot Ltd
Interference
CSMA/CA (Carrier Sense Multiple Access Collision Avoidance)
Reduce through put Change channel/power Directional antennas/shielding
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Green Dot Ltd
NMS
(Network Management System)
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Green Dot Ltd
Security
802.1x 802.11i WEP (RC4 stream cipher) WPA (RC4) AES/DES WPA2/RSN (AES block cipher) Authentication Server
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Green Dot Ltd
NMS (Network Management System) Security NAT/DHCP Routing/firewalls Traffic engineering
http P2p Mail RTP
Measure usage Speed (512kbps/1Mb/2Mb…11Mb) Traffic usage (1/5/10G)
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Green Dot Ltd
Operations
Monitoring of nodes Capacity planning Usage patterns Redundancy SLA’s
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Green Dot Ltd
Multi Antenna System Upto extra 10db Extended range Robust and
reliable
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Green Dot Ltd
Multipath
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Green Dot Ltd
Other Tools
Space Division Multiple Access (SDMA)
Directional Antennas Receivers Channel Bonding
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Green Dot Ltd
Other Factors
SSID’s – Virtual mesh networks Roaming FREE wall gardens Public Safety
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Green Dot Ltd
Questions and Answers ?
Ajmal Nazir