Modul 9 Pengenalan BWA - WiMAX

Modul 9 Pengenalan BWA - WiMAX Mata Kuliah Sistem Telekomunikasi Semester Genap 2009 – 2010 Sumber : Materi Training TELKOM

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Latar Belakang WiMAX

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Keuntungan & Fitur WiMAX

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Standar WiMAX & WiMAX Forum

Aplikasi & Layanan WiMAX

Market Trends

Broadband

Mobile Communications

Personal Mobile Broadband

Content

Broadband Services Anywhere, Anytime Success of wireline broadband and short-range portable wireless data has created a “killer” application : “Wireless Broadband Services

anytime, anywhere”

Need a standard technology to meet the challenge of Mobile Broadband Internet

Broadband Makes The Difference ENTERPRISE: Mobile Worker Services Virtual Office Hotspot & SME Access VoIP over WLAN Private Networks

CONSUMER: Personal Broadband Services Streaming Video/ Online Gaming Video Messaging Location Based Services

PUBLIC SERVICE: Government and Emergency Services

EMERGING: Data/VOIP Last Mile Fixed and Wi-Fi Backhaul Lowest Cost Broadband

WiMAX Answers This Need WiMAX enables Personal Broadband, real-time applications on the move

WiMAX: All-IP infrastructure for converged services 6

What is WiMAX ? Worldwide Interoperability for Microwave Access • •

WiMAX is a standards-based technology enabling the delivery of mobile wireless broadband connectivity WiMAX is: – 4G – Broadband – IP native – Standard-based: IEEE 802.16 – Industry to create interoperable complete eco-system

Why WiMAX ? • Suatu solusi broadband yang Low Cost & High Performance yang mampu memberikan konektivitas High Speed Data dan Next-Gen IP Telephony. – Satu standar global – Beroperasi pada spektrum Licensed and License exempt

• Suatu teknologi Radio Non Line-of-Sight – Mendukung coverage Outdoor dan Indoor • Menciptakan peluang bisnis baru untuk layanan broadband (in Developed, Emerging and Rural markets)

• Didisain untuk beroperasi sebagai solusi komplemen bagi sistem seluler 2G and 3G – Khususnya untuk lingkungan yang tele-densitasnya rendah.

Why WiMAX ? •

Suatu peningkatan business case untuk Broadband Wireless Access – Interoperabilitas berbasis standar menurunkan biaya perangkat. – Mengurangi resiko investasi bagi operator.

•

Solusi komplemen wireless LAN & WAN – Sebagai backhaul teknologi lain (mis : Wi-Fi hotspots) – Menambah kapasitas data broadband untuk jaringan seluler.

•

WiMAX tersedia dalam range frekwensi yang luas – Lebih fleksibel daripada standar-standar radio yang lain.

Where does WiMAX play ?

802.16e

802.16-2004

802.16-2004

802.16-2004 802.16e

Wireless Broadband Landscape

WiMAX is the optimal broadband technology for fixed & mobile subscribers

Comparison of WiMAX with Other Broadband Wireless Technologies

Wireless Networks Will Co-Exist

WiMAX WW Subscribers by Region Asia Pacific (APAC) region fastest growth with Europe next

Millions of Subcribers

4 3,5 3 Asia Pacific North America Latin America Europe Rest of World

2,5 2 1,5 1 0,5 0 2006

2007

2008

2009

WiMAX WW Subscribers

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Keuntungan WiMAX Pembuat Komponen • Menciptakan suatu volume opportunity bagi suplier silikon.

Pembuat Perangkat • Inovasi lebih cepat karena terdapat platform berbasis-standar dan kuat untuk menambah kapabilitas-kapabilitas baru. • Tidak perlu lagi mengembangkan setiap bagian dari solusi end-to-end.

Operator • Suatu platform bersama yang menurunkan biaya perangkat dan mempercepat perbaikan performansi/harga yang tidak bisa diperoleh melalui pendekatan proprietary. • Membangkitkan revenue dengan mengisi broadband access gaps. • Penyediaan layanan-layanan broadband yang cepat untuk level T1/E1 dan “on demand” high margin. • Tidak perlu tergantung pada vendor tunggal karena base station akan interoperable dengan multiple vendors‟ CPEs.

Konsumen • Pilihan akses broadband yang lebih banyak, khususnya di area-area yang sulit mendapatkan akses broadband (urban, suburban, rural). • Pilihan akses broadband yang makin banyak akan menciptakan kompetisi yang menyebabkan biaya langganan bulanan menjadi lebih murah.

Fitur-fitur WiMAX (1/3) OFDM-based physical layer •

Skema yang menawarkan resistansi terhadap multipath dan memungkinkan WiMAX beroperasi dalam kondisi NLOS.

Very high peak data rates • •

Dengan lebar spektrum 20 MHz, PHY data rate dapat mencapai 74 Mbps. Dengan lebar spektrum 10 MHz, skema TDD, rasio uplink-to-downlink 3:1, PHY data rate dapat mencapai 25 Mbps (uplink) dan 6.7 Mbps (downlink).

Scalable bandwidth and data rate support •

Dengan mode OFDMA, ukuran FFT dapat disesuaikan berdasarkan bandwidth kanal yang tersedia. (Misalnya : FFT 128/512/1048 untuk bandwidth kanal 1.25 MHz/5 MHz / 10 MHz).

Adaptive Modulation & Coding (AMC) •

Mendukung sejumlah skema modulasi dan FEC, yang dapat diubah secara dinamis per user per frame berdasarkan kondisi kanal.

Link layer retransmissions •

Mendukung ARQ pada link layer untuk meningkatkan reliability hubungan.

Fitur-fitur WiMAX (2/3) Support for TDD and FDD •

IEEE 802.16-2004 dan IEEE 802.16e-2005 mendukung skema TDD dan FDD serta half-duplex FDD.

Orthogonal frequency division multiple access (OFDMA) •

Mobile WiMAX menggunakan teknik akses OFDMA, dimana user-user yang berbeda dapat dialokasikan sejumlah OFDMA subcarrier.

Flexible and dynamic per user resource allocation •

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Alokasi resource uplink dan downlink dapat dikontrol oleh suatu scheduler di dalam base station. Kapasitas di-share diantara multiple user berdasarkan demand, dengan menggunakan skema TDM burst. Resource bandwidth dapat dialokasikan dalam domain waktu, frekwensi dan space.

Support for advanced antenna techniques •

Mendukung penggunaan teknik multiple antenna, seperti space-time coding, beamforming dan spatial multiplexing, untuk memperbaiki kapasitas sistem dan efisiensi spektral.

Fitur-fitur WiMAX (3/3) Quality-of-Service support • •

WiMAX MAC layer mempunyai arsitektur connection-oriented yang didisain untuk mendukung berbagai aplikasi, termasuk layanan voice dan multimedia. Sistem menawarkan dukungan untuk constant bit rate, variable bit rate, real-time, nonreal-time dan best effort data traffic.

Robust security • •

WiMAX mendukung enkripsi yang kuat, dengan menggunakan Advanced Encryption Standard (AES) dan mempunyai robust privacy & key-management protocol. Sistem juga menawarkan arsitektur autentikasi yang sangat fleksibel berdasarkan EAP (Extensible Authentication Protocol).

Support for mobility • •

Varian sistem mobile WiMAX mempunyai mekanisme untuk mendukung secure seamless handover untuk aplikasi-aplikasi delay-tolerant full-mobility, seperti VoIP. Mendukung mekanisme power-saving, channel estimation, uplink subchannelization dan power control.

IP-based architecture •

Semua layanan end-to-end di-deliver melalui suatu arsitektur berbasis IP.

IP-based WiMAX Network Architecture

Network Reference Model

Access Service Network (ASN)

Connectivity Service Network (CSN)

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Development of Wireless Telecommunication

Development of Wireless Telecommunication

WiMAX IEEE Standardization Path 802.16

Fixed Wireless Broadband Air Interface : 10 – 66 GHz

(2001)

Korea developing a parallel effort “WiBro”

802.16a (2003)

802.16-2004 July ’04 Korea Govt Decision Convergence “WiBro” w 802.16e

(June 2004) OFDM

802.16e

802.16 Amendment Fixed Wireless Broadband MAC & PHY : 2 – 11 GHz NLOS based upon OFDM

802.16 Revision PAR for 802.16, 802.16a Fixed Wireless Broadband System Profiles, Errata for 2 – 11 GHz (Formerly 802.16 REVd)

Changes to 802.16e ratified that allowed for a unified profile completed and mobility support

OFDMA

802.16e-2005 (End 2005) OFDM+OFDMA

802.16 Amendment for Combined Fixed and Mobile wireless broadband at vehicular speeds in Licensed bands from 2 – 6 GHz Waiting for corrigendum

• WiMAX Forum Interoperability Profiles

• WiMAX Certification

IEEE 802.16a/d/e, ETSI-HIPERMAN and WiMAX Forum

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IEEE 802.16a – A Fixed Wireless Access standard – PtMP MAC layer, three Physical layers: OFDM, OFDMA and Single Carrier IEEE 802.16d – adapts the 802.16a PHY for Mobility IEEE 802.16e – Provides Handoff and power-save mechanisms to complete support for mobility •

HIPERMAN – the parallel ETSI effort • Identical to 802.16a and 802.16d, except: • Only OFDM PHY •

WiMAX Forum – industry organization for promotion of IEEE 802.16 and ETSI HiperMAN • Focuses on the OFDM 256 mode • Drives the effort for test specs, PICS, test lab certification, equipment certification.

Siapa WiMAX Forum ? •

Suatu organisasi non-profit yang terdiri dari : – Manufaktur perangkat Broadband Wireless – Component Suppliers (silicon, RF, antenna, software, test services) – Service Providers (DSL Operators, Carriers, Wireless ISPs)

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Fungsi Utama: Melakukan sertifikasi perangkat yang memenuhi standard IEEE 802.16. – Fokus pada sub ban frekuensi 6 GHz

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Proses yang dilakukan termasuk perangkat-perangkat yang memenuhi standard interoperability, seperti HiperMAN ETSI

Ruang Lingkup WiMAX Forum

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Memiliki misi dan tujuan yang sama dengan Wi-Fi Alliance untuk standard 802.11, DSL Forum untuk sistem DSL, dll

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Pengembangan standard dilakukan dengan menggunakan market requirements yang diusulkan anggota forum sehingga basic interoperability dapat tercapai antar vendor. Dengan demikian, tes sertifikasi pun disusun oleh multi-vendor

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Menjadi Host dari pelaksanaan test interoperability (“PlugFests”)

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Memungkinkan suatu proses sertifikasi yang berlaku di seluruh dunia (melalui pengesahan „WiMAX Certified” pada perangkat).

WiMAX Forum Mission Statement

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Tujuan utama dari WiMAX Forum adalah memajukan suatu sistem WiMAX (Worldwide Interoperability for Microwave Access) yang menggunakan global standard, disamping melakukan sertifikasi interoperability dari produk dan teknologi. Tujuan ini didukung dengan aktivitas : – Menyusun test specifications – Melakukan kualifikasi terhadap lab test – Melaksanakan sertifikasi produk

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Fokus pada aspek interoperability

WiMAX is the next revolutionary technology after WiFi!

Anggota WiMAX Forum

Update : Oktober 2006

Positioning WiMAX Forum

Expanded Charter Alliance

Fixed

Portable

Mobile

IEEE802.16d and 802.16e Air Interface standard

Was Just Fixed, now also Portable and Mobile!

Relasi IEEE, ETSI dan WiMAX Forum

Spesifikasi dalam Gelombang Sertifikasi Backward Compatibility

More Features Tested Release 3 No new module has been announced yet. Release 2 Optional modules : Quality of Service (QoS), Advanced Encryption Standard (AES), Automatic Repeat Request (ARQ)

Release 1 Basic functionality, including air interface, network entry, dynamic services and bandwidth allocation.

1Q06

2Q06

3Q06

4Q06

1Q07

2Q07

Proses Sertifikasi WiMAX Forum Return to Vendor Testing

Conformance Testing

No

Pass?

No Yes

Interoperability Testing (x3)

Pass?

Yes

PCT: Protocol Conformance Tester RCT: Radio Conformance Tester

Base station will be tested to interoperate with at least two (2) other vendor CPE‟s CPE will be tested to interoperate with at least two (2) other vendor base stations

Vendor 1 BS

Vendor 1 CPE

Vendor 2 BS

Vendor 2 CPE

Vendor 3 BS

Vendor 4 CPE

Produk WiMAX Certified

Basic Data on IEEE 802.16 Standards (1/2)

Basic Data on IEEE 802.16 Standards (2/2)

Fixed and Mobile WiMAX Initial Certification Profiles

Usage Scenarios and WiMAX Forum Profile 802.16e-2005 OFDMA (MTG) 802.16-2004  802.16e-2005 OFDM (ETG)

Fixed Access Indoor/Outdoor modems Residential Gateways

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Nomadic Laptops, PC Card

PTP and PMP networking Outdoor antenna deployments Data and voice service 802.16-2004 OFDM mode Fixed mode No handoffs

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Portable

Simple Mobility

Full Mobility

Laptops PDAs

Laptops PDAs

Laptops PDAs Mobile Phone

Outdoor and indoor coverage PCMCIA cards 802.16-2004 OFDM mode BBM and handoffs for portable model Supporting sleep mode

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Cellular deployments, high frequency reuse, and backend infrastructure enabling mobile services Indoor usage model with advanced antenna options 802.16-2005 OFDMA mode Embedded clients for PCs and handhelds MBB and advanced handoffs Data, Audio, Voice, Video

Types of Access to a WiMAX Network

Technology Advantages

Which WiMAX ? Decision criteria for operators Target business model/application for subscribers : Fixed/Nomadic vs Mobile

Frequency Band : Spectrum availability Regulation

Duplex Mode TDD vs FDD

Operator Business Case Timelines Timeframe Usage model

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WiMAX Applications

Traditional Fixed Broadband Wireless Access “Personal Broadband” Backhaul Specialist Applications Deployment scenarios

WiMAX Time Frames

Traditional Fixed Broadband Wireless Access • Offers all services and features expected by BWA customers – – – –

Web browsing Streamed multi-media Loosely coupled VoIP supported as standard File transfer (FTP) • Transparent delivery of all TCP-IP services – Full VLAN interoperability • Guaranteed isolation between co-located users • Network bridging of geographically distributed sites

• Throughput up to 25Mbit/s • Integrated support with „network-wide‟ service level agreements – Integrated QoS – Full bandwidth commitment services and associated alarms

• Like DSL or Cable – Service to a fixed location

WiMAX Applications : “Personal Broadband” •

Business Case for Outdoor CPEs works only in special situations – Outdoor CPE mean “Fixed” Broadband, service is delivered to a location

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WiMAX supports a new kind of deployment model, called “Personal Broadband” where the service is delivered directly to a person‟s device, not a location. There are four types of Personal Broadband: – – – –

Self-Install Indoor Broadband: One Per Person Nomadic Broadband: in Laptop PCs or PDAs Portable Broadband: Devices with a built-in WiMAX capability Mobile Broadband: Broadband Services on the Move!

Personal Broadband : Broadband for People not Places!

WiMAX for “Personal Broadband”

Line of Sight BACKHAUL

802.16 802.16

802.16

802.16 PCI Express* Form Factor

Laptop Connected Through 802.16

SEEKS BEST CONNECTION

Telco Core Network or Private (Fiber) Network

INTERNET BACKBONE

WiMAX Backhaul •

WiMAX Backhauling WiMAX – Backhauling PMP AS.MAX solutions – Backhauling other WiMAX solutions – Wireless ISP backhaul

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WiMAX Backhauling Wi-Fi – Backhauling Hotspots – Integrated WiFi – Enterprise networks

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WiMAX Backhauling Other Technologies – Backhauling proprietary wireless networks – Backhauling mobile networks

WiMAX Backhaul BACKHAUL OUTDOOR CPE 802.11

Non Line of Sight Point to Multipoint

802.16

Point to Point BACKHAUL

802.16 802.16

INDOOR CPE


INTERNET BACKBONE

WiMAX : Wireless DSL “Wireless DSL” OUTDOOR CPE 802.11

Non LOS Point to Multipoint

802.16

Point to Point BACKHAUL

802.16

802.16

INDOOR CPE


INTERNET BACKBONE

WiMAX Backhauling Wi-Fi

Usage Scenarios : Key Characteristics Fixed

Nomadic

Portable

Simple Mobility

Full Mobility

SS Mobility

None

None during session

5 km/h

>60 km/h with an option to support >120 km/h with graceful degradation of data rate

>120 km/h

Network Latency on Handoff (Full E2E Latency)

N/A

N/A

Best Effort

<1 sec between IP subnets, <150 ms within IP subnet

<50 ms

Data Transmission Disruption Time (Latency radio Layer)

N/A

N/A

Best Effort

<150 ms L2

<max (5 ms. Frame time)

Session Continuity

No

No

Best Effort

Yes

Yes

Idle Mode Support

Optional

Optional

Optional

Yes

Yes

Target Applications for Stationary Operation

All IP Applications supported on DSL or Cable

Applications supported while mobile (moving)

N/A

N/A

Non Real Time

Non Real Time

Real Time and Non Real Time

Example application targets for mobile operation

N/A

N/A

Email, web, FTP file transfer, video streaming (w/ buffering)

Email, web, FTP file transfer, video streaming (w/ buffering)

VoIP, Video Streaming, video telephony, internet gaming & email, web, FTP file transfer, video streaming (w/ buffering)

Associate with multiple base stations

No

No

Optional

Device Type Support

Standalone CPE Gateway

Standalone CPE PCMCIA RG Embedded Devices

Standalone CPE PCMCIA RG Embedded Devices

Yes may receive data from multiple BS and combine or do fast cell switching Standalone CPE PCMCIA Compact Flash RG

Standalone CPE PCMCIA Compact Flash RG

Deployment Scenarios : Fixed (Outdoor LOS) 0.6 FZC

70km+ Line-of-Sight (LOS) 9-12dB from Obstructions and Frenzel Zone Encroachment

30km+ Near Line-of-Sight (Near LOS)

Deployment Scenarios : Fixed (Outdoor NLOS) Fully Obstructed / Reflected Radio Path

Rural

10km

Urban

Fully Obstructed / Reflected Radio Path

5km

Deployment Scenarios : Fixed/Nomadic (Indoor NLOS) Fully Obstructed / Reflected Radio Path

Rural

First Wall Penetration

4km

Urban



2km

Deployment Scenarios : Portable (Indoor NLOS) Fully Obstructed / Reflected Radio Path

Rural


3km

Urban



1km

Deployment Scenarios : Mobile (Indoor NLOS) Fully Obstructed / Reflected Radio Path

Rural


2km

Urban



500m

Deployment Scenarios : Mobile (Indoor NLOS)

Modul 9 Pengenalan BWA - WiMAX

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