IEEE 802.16 & IEEE 802.16 & 802.15802.15

Priyanka VanjaniPriyanka Vanjani

CST 554: Short PresentationCST 554: Short Presentation

ASU Id # 993923182ASU Id # 993923182

AgendaAgenda

IEEE and IEEE StandardsIEEE and IEEE Standards 802.16802.16 Benefits of 802.16Benefits of 802.16 Problems associated with 802.16Problems associated with 802.16 802.16 vs 802.11802.16 vs 802.11 802.15802.15 Problems associated with 802.15Problems associated with 802.15 ConclusionConclusion

IEEEIEEE

Institute of Electrical and Institute of Electrical and Electronics EngineersElectronics Engineers

International, Non-profit International, Non-profit organizationorganization

Leading standards-making Leading standards-making organizations in industries like organizations in industries like IT, healthcare, IT, healthcare, telecommunications, IS etc.telecommunications, IS etc.

IEEE StandardsIEEE Standards

802.1802.1 LAN/MAN bridging, remote MAC LAN/MAN bridging, remote MAC bridgingbridging

802.2802.2 Logical Link control standards for Logical Link control standards for connectivityconnectivity

802.3802.3 Ethernet standards for CSMA/CDEthernet standards for CSMA/CD

802.4802.4 Standards for token passing bus Standards for token passing bus accessaccess

802.5802.5 Standards for token rings & Standards for token rings & LAN/MAN comm.LAN/MAN comm.

802.6802.6 Standards for information exchangeStandards for information exchange

802.7802.7 Broadband LAN cablingBroadband LAN cabling

802.8802.8 Fiber Optic connectionFiber Optic connection

802.9802.9 For services like voice and dataFor services like voice and data

IEEE Standards (contd..)IEEE Standards (contd..)

802.1802.100

For LAN/MAN security For LAN/MAN security implementationsimplementations

802.1802.111

WiFi-Wireless NetworkingWiFi-Wireless Networking

802.1802.122

Standards for demand priority Standards for demand priority access methodsaccess methods

802.1802.144

For cable television broadband For cable television broadband communicationscommunications

802.1802.15.15.1

BluetoothBluetooth

802.1802.15.45.4

Wireless Sensor/Control Networks: Wireless Sensor/Control Networks: ZigbeeZigbee

802.1802.166

Wireless Networking: WiMAXWireless Networking: WiMAX

802.16802.16

Aims at deploying broadband Aims at deploying broadband Wireless Metropolitan Area NetworksWireless Metropolitan Area Networks

Approved in Dec 2001Approved in Dec 2001 Entry of broadband wireless access to Entry of broadband wireless access to

link homes and businesses worldwidelink homes and businesses worldwide 802.16 Wireless MAN provides 802.16 Wireless MAN provides

network access to buildings by using network access to buildings by using exterior antennasexterior antennas

802.16 (contd..)802.16 (contd..)

Network access through cables Network access through cables is no longer requiredis no longer required

802.16: delivers broadband 802.16: delivers broadband wireless transmission in the wireless transmission in the frequency range: 10-66 GHzfrequency range: 10-66 GHz

802.16a: 2-11 GHz802.16a: 2-11 GHz Lower frequency range helps Lower frequency range helps

reach more people and cost lessreach more people and cost less

802.16 (contd..)802.16 (contd..) 802.16: Line of sight only, 10-66GHz, 802.16: Line of sight only, 10-66GHz,

Point-to-Multipoint applicationsPoint-to-Multipoint applications 802.16a: Non Line of sight, 2-11GHz, 802.16a: Non Line of sight, 2-11GHz,

Point-to-Multipoint applications. Base Point-to-Multipoint applications. Base stations directly connect to the stations directly connect to the customercustomer

802.16c: Line of sight communication,802.16c: Line of sight communication,

10-66GHz. Can be used in backhaul 10-66GHz. Can be used in backhaul networks to connect 802.16a BS with networks to connect 802.16a BS with high-speed links over long distanceshigh-speed links over long distances

802.16 (contd..)802.16 (contd..)

How it works?How it works?

How it works? (contd..)How it works? (contd..)

802.16 provides communication 802.16 provides communication path between the subscriber site path between the subscriber site and the core networkand the core network

It has a three-layered It has a three-layered architecturearchitecture

How it works? (contd..)How it works? (contd..)

Physical Layer: lowest layer, deals Physical Layer: lowest layer, deals with error correction, with error correction, synchronization, modulation and synchronization, modulation and frequency. DAMA-TDMA technique frequency. DAMA-TDMA technique is used for transmission from is used for transmission from subscribers subscribers base station base station

MAC Layer: layer above Physical MAC Layer: layer above Physical layer, associated with in what layer, associated with in what manner and when a station will manner and when a station will initiate transmissioninitiate transmission

How it works? (contd..)How it works? (contd..)

Convergence Layer: for Convergence Layer: for providing functions specific to providing functions specific to the service such as ATM, the service such as ATM, internetinternet

BenefitsBenefits

Services can be deployed faster even Services can be deployed faster even where wires cannot be reachedwhere wires cannot be reached

Reliable & ScalableReliable & Scalable Single station is capable of serving Single station is capable of serving

hundreds of usershundreds of users Wireless systems can span large Wireless systems can span large

geographical areas and are not geographical areas and are not expensive as cable links are not expensive as cable links are not requiredrequired

Benefits (contd..)Benefits (contd..)

Efficient even when there are Efficient even when there are multiple connections per multiple connections per terminalterminal

Provides QoS (Quality of Provides QoS (Quality of Service) mechanismsService) mechanisms

802.16 : Amendments802.16 : Amendments

802.16e-2005: Mobile 802.16802.16e-2005: Mobile 802.16 802.16f-2005: Management 802.16f-2005: Management

Information BaseInformation Base 802.16g-2007: Management 802.16g-2007: Management

Plane Procedures and ServicesPlane Procedures and Services 802.16k-2007: Bridging of 802.16k-2007: Bridging of

802.16802.16

ProblemsProblems

Difficult to determine each and Difficult to determine each and every physical location for accurate every physical location for accurate placement of the equipmentplacement of the equipment

As a result, Deployment costs As a result, Deployment costs might increasemight increase

Operational costs are high tooOperational costs are high too Needs strong electrical support-Needs strong electrical support-

higher costs and power higher costs and power consumptionconsumption

Problems (contd..)Problems (contd..)

Weather conditions such as rain can Weather conditions such as rain can interfere with receptioninterfere with reception

Limitation of bandwidth: In high Limitation of bandwidth: In high density areas, bandwidth may not density areas, bandwidth may not be sufficient to meet the needs of all be sufficient to meet the needs of all the users-high coststhe users-high costs

Costs associated with setting up Costs associated with setting up wireless network since the wireless network since the frequency used is licensed by the frequency used is licensed by the governmentgovernment

802.15 & 802.16802.15 & 802.16802.15802.15 802.16802.16

Bluetooth GroupBluetooth Group Wireless Personal Wireless Personal Area Networks (PAN)Area Networks (PAN) 802.15.1-derives a 802.15.1-derives a Wireless PAN Wireless PAN standard based on standard based on bluetooth bluetooth specificationsspecifications 802.15.4-802.15.4-emphasizes on low emphasizes on low cost communication cost communication of nearby devices. of nearby devices. Simple battery Simple battery operated devices as operated devices as sensorssensors

Wireless MANWireless MANAddresses point to Addresses point to multipoint multipoint communicationscommunicationsLess costs as Less costs as compared to DSL or compared to DSL or cable modem accesscable modem access10-66GHz for 10-66GHz for 802.16c and802.16c and

2-11GHz for 2-11GHz for 802.16a802.16a

802.16 & 802.11 802.16 & 802.11 802.16802.16 802.11802.11

WiMAXWiMAX License is License is requiredrequiredPerforms well Performs well when there are when there are large number of large number of usersusers Range: can go Range: can go upto 50kmupto 50km

Wi-FiWi-Fi No license No license required by govt.required by govt. Has performance Has performance limitations with limitations with large number of large number of usersusers Range: Range: optimized for optimized for 100m 100m

802.16 & 802.11802.16 & 802.11

802.16802.16 802.11802.11

QoS: Guaranteed QoS: Guaranteed mechanisms to mechanisms to provide QoSprovide QoS 802.16a: 2-802.16a: 2-11GHz11GHz

802.16c: 10-802.16c: 10-66GHz66GHz Security: WEP, Security: WEP, WPA, WPA2WPA, WPA2

QoS: No QoS: No guarantee for guarantee for delays, throughputdelays, throughput

Operates in the Operates in the 5GHz and 2.4GHz 5GHz and 2.4GHz bandsbands Security: 128-bit Security: 128-bit 3 DES, 1024-bit 3 DES, 1024-bit RSARSA

Problems with 802.15Problems with 802.15

IEEE 802.15.4 does not take into IEEE 802.15.4 does not take into account changes in the account changes in the predetermined frequency channel. predetermined frequency channel. In case of interferences, switching In case of interferences, switching to another channel is not possibleto another channel is not possible

Not well-suited to applications with Not well-suited to applications with larger distance between nodeslarger distance between nodes

Can accommodate 7 or more nodes Can accommodate 7 or more nodes and has a short range of 10 metersand has a short range of 10 meters

Problems with 802.15Problems with 802.15 Cannot operate well in high Cannot operate well in high

interference environmentsinterference environments

ConclusionConclusion

Both 802.16 and 802.15 have their Both 802.16 and 802.15 have their own advantages and disadvantages. own advantages and disadvantages. While 802.16 has high installation While 802.16 has high installation costs, 802.15 is not expensive and costs, 802.15 is not expensive and doesn’t need licensing. 802.15 is doesn’t need licensing. 802.15 is used for devices like bluetooth, home used for devices like bluetooth, home security and 802.16 is Wireless security and 802.16 is Wireless MAN’s. To conclude, they both have MAN’s. To conclude, they both have different transmission range, rate different transmission range, rate and work in different situationsand work in different situations

ReferencesReferences

http://en.wikipedia.org/wiki/IEEEhttp://en.wikipedia.org/wiki/IEEE http://wirelessman.org/docs/02/C80216-http://wirelessman.org/docs/02/C80216-

02_05.pdf 02_05.pdf http://en.wikipedia.org/wiki/http://en.wikipedia.org/wiki/

IEEE_802.16IEEE_802.16 http://en.wikipedia.org/wiki/WiMAXhttp://en.wikipedia.org/wiki/WiMAX http://mocca.objectweb.org/attach?http://mocca.objectweb.org/attach?

page=WP3Events%2FIEEE802.16.pdfpage=WP3Events%2FIEEE802.16.pdf http://www.wireless.ucla.edu/http://www.wireless.ucla.edu/

techreports/UCLA-WINMEC-2003-401-techreports/UCLA-WINMEC-2003-401-802.16-NW.pdf 802.16-NW.pdf

References (contd..)References (contd..)

http://rswcyyw.blogspot.com/2007/06/http://rswcyyw.blogspot.com/2007/06/wimax-disadvantages.html wimax-disadvantages.html

http://www.networkworld.com/news/http://www.networkworld.com/news/tech/2001/0903tech.html tech/2001/0903tech.html

http://www.sentecelektronik.de/http://www.sentecelektronik.de/downloads/wirelessnetworksolutions.pdfdownloads/wirelessnetworksolutions.pdf

http://www.rfm.com/products/http://www.rfm.com/products/page2.htmpage2.htm

http://www.networkworld.com/news/http://www.networkworld.com/news/tech/2001/0903tech.htmltech/2001/0903tech.html

References (contd..)References (contd..)

http://images.google.com/imgres?http://images.google.com/imgres?imgurl=http://www.cs.wustl.edu/imgurl=http://www.cs.wustl.edu/~jain~jain

http://www.fumec.org.mx/ingles/http://www.fumec.org.mx/ingles/resources/collab%20acad%20novresources/collab%20acad%20nov%202005/5.Akingbehin.pdf%202005/5.Akingbehin.pdf

http://www.cs.wustl.edu/~jain/http://www.cs.wustl.edu/~jain/cse574-06/ftp/j_6man/sld022.htmcse574-06/ftp/j_6man/sld022.htm

http://en.wikipedia.org/wiki/http://en.wikipedia.org/wiki/IEEE_802.11IEEE_802.11

Thank You !Thank You !