coming to actual Wi MAX

Mobile WiMAX – Part 1: A Technical Overview and

Performance Evaluation

This paper has been prepared on behalf of the WiMAX Forum and the material presented

represents the combined efforts of many people from several WiMAX Forum

organizations with long-standing experience in wireless technologies. Additionally, a

broader range of WiMAX Forum members have had the opportunity to review and

critique the material and every attempt has been made to assure accuracy of the material.

WiMAX Forum member organizations that have made contributions to the material

presented in this paper are:

Alvarion

Arraycomm

ATT

Beceem

Intel

Motorola

Nortel

Samsung

The WiMAX Forum is especially grateful to participants from Intel, Motorola, and Nortel

for their dedicated efforts and substantial contributions towards completing this paper in a

timely manner. The overall preparation and editing was done by Doug Gray, a

Telecommunications Consultant under contract to the WiMAX Forum.

Acronyms

3GPP 3G Partnership Project

3GPP2 3G Partnership Project 2

AAS Adaptive Antenna System also Advanced Antenna System

ACK Acknowledge

AES Advanced Encryption Standard

AG Absolute Grant

AMC Adaptive Modulation and Coding

A-MIMO Adaptive Multiple Input Multiple Output (Antenna)

ASM Adaptive MIMO Switching

ARQ Automatic Repeat reQuest

ASN Access Service Network

ASP Application Service Provider

BE Best Effort

BRAN Broadband Radio Access Network

CC Chase Combining (also Convolutional Code)

CCI Co-Channel Interference

CCM Counter with Cipher-block chaining Message authentication code

CDF Cumulative Distribution Function

CDMA Code Division Multiple Access

CINR Carrier to Interference + Noise Ratio

CMAC block Cipher-based Message Authentication Code

CP Cyclic Prefix

CQI Channel Quality Indicator

CSN Connectivity Service Network

CSTD Cyclic Shift Transmit Diversity

CTC Convolutional Turbo Code

DL Downlink

DOCSIS Data Over Cable Service Interface Specification

DSL Digital Subscriber Line

DVB Digital Video Broadcast

EAP Extensible Authentication Protocol

EESM Exponential Effective SIR Mapping

EIRP Effective Isotropic Radiated Power

ErtVR Extended Real-Time Variable Rate

ETSI European Telecommunications Standards Institute

FBSS Fast Base Station Switch

FCH Frame Control Header

FDD Frequency Division Duplex

FFT Fast Fourier Transform

FTP File Transfer Protocol

FUSC Fully Used Sub-Channel

HARQ Hybrid Automatic Repeat reQuest

HHO Hard Hand-Off

HiperMAN High Performance Metropolitan Area Network

HMAC keyed Hash Message Authentication Code

HO Hand-Off

HTTP Hyper Text Transfer Protocol

IE Information Element

IEFT Internet Engineering Task Force

IFFT Inverse Fast Fourier Transform

IR Incremental Redundancy

ISI Inter-Symbol Interference

LDPC Low-Density-Parity-Check

LOS Line of Sight

MAC Media Access Control

MAI Multiple Access Interference

MAN Metropolitan Area Network

MAP Media Access Protocol

MBS Multicast and Broadcast Service

MDHO Macro Diversity Hand Over

MIMO Multiple Input Multiple Output (Antenna)

MMS Multimedia Message Service

MPLS Multi-Protocol Label Switching

MS Mobile Station

MSO Multi-Services Operator

NACK Not Acknowledge

NAP Network Access Provider

NLOS Non Line-of-Sight

NRM Network Reference Model

nrtPS Non-Real-Time Packet Service

NSP Network Service Provider

OFDM Orthogonal Frequency Division Multiplex

OFDMA Orthogonal Frequency Division Multiple Access

PER Packet Error Rate

PF Proportional Fair (Scheduler)

PKM Public Key Management

PUSC Partially Used Sub-Channel

QAM Quadrature Amplitude Modulation

QPSK Quadrature Phase Shift Keying

RG Relative Grant

RR Round Robin (Scheduler)

RRI Reverse Rate Indicator

RTG Receive/transmit Transition Gap

rtPS Real-Time Packet Service

RUIM Removable User Identify Module

SDMA Space (or Spatial) Division (or Diversity) Multiple Access

SF Spreading Factor

SFN Single Frequency Network

SGSN Serving GPRS Support Node

SHO Soft Hand-Off

SIM Subscriber Identify Module

SINR Signal to Interference + Noise Ratio

SISO Single Input Single Output (Antenna)

SLA Service Level Agreement

SM Spatial Multiplexing

SMS Short Message Service

SNIR Signal to Noise + Interference Ratio

SNR Signal to Noise Ratio

S-OFDMA Scalable Orthogonal Frequency Division Multiple Access

SS Subscriber Station

STC Space Time Coding

TDD Time Division Duplex

TEK Traffic Encryption Key

TTG Transmit/receive Transition Gap

TTI Transmission Time Interval

TU Typical Urban (as in channel model)

UE User Equipment

UGS Unsolicited Grant Service

UL Uplink

UMTS Universal Mobile Telephone System

USIM Universal Subscriber Identify Module

VoIP Voice over Internet Protocol

VPN Virtual Private Network

VSF Variable Spreading Factor

WiFi Wireless Fidelity

WAP Wireless Application Protocol

WiBro Wireless Broadband (Service)

WiMAX Worldwide Interoperability for Microwave Access

EXECUTIVE SUMMARY

In this document we provide an overview of Mobile WiMAX and provide the

performance for the basic minimal configuration based on the WiMAX Forum Release-1

system profiles. We show that mobile WiMAX can provide tens of megabits per second

of capacity per channel from each base station with a baseline configuration. Some of the

advanced features such as adaptive antenna systems (AAS) which can significantly

improve the performance are discussed but not included in the performance analysis.

The high data throughput enables efficient data multiplexing and low data latency.

Attributes essential to enable broadband data services including data, streaming video and

VoIP with high quality of service (QoS). The performance will enable transparency of

quality of service between Mobile WiMAX and broadband wired services such as Cable

and DSL, an important requirement for the success of the targeted Mobile Internet

application for Mobile WiMAX.

The scalable architecture, high data throughput and low cost deployment make Mobile

WiMAX a leading solution for wireless broadband services. Other advantages of

WiMAX include an open standards approach, friendly IPR structure and healthy

ecosystem. Hundreds of companies have contributed to the development of the

technology and many companies have announced product plans for this technology. This

addresses another important requirement for the success of the technology, which is low

cost of subscription services for mobile internet. The broad industry participation will

ensure economies of scale that will help drive down the costs of subscription and enable

the deployment of mobile internet services globally, including emerging countries.

A companion paper, Mobile WiMAX - Part II: A Competitive Analysis, provides a

comparison with contemporary cellular alternatives. The comparison is carried out in

qualitative (feature comparison) and quantitative terms to demonstrate the advantages of

Mobile WiMAX compared to the available mobile wireless alternatives.