E8874A Wireless LAN (WLAN) Design Library

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E8874 Wireless LAN (WLAN) Design Library offers easy-to-use, hierarchical, realizable models for the efficient design and verification of IEEE 802.11 and Hiperlan2 transmitters and receivers. Pre-configured Test and Verification setups simplify the process of evaluating design performance parameters such as Output RF Spectrum, Error Vector Magnitude (EVM), Power Statistics using Complementary Cumulative Distribution Function (CCDF), Bit Error Rate (BER) and Packet Error Rate (PER). IEEE 802.11a,b,g and Hiperlan2 test and verification setups are also included in the examples. Click on the following links for complete information. Product Information Ordering and Configuration Product Literature Publications User Support

Product Highlights

• The WLAN DesignGuide is included with the E8874A WLAN Design Library.
  
  
• IEEE 802.11b compliant receiver models and test benches.
  
  
• IEEE 802.11g test benches.
  
  
• Algorithmic (behavioral) models based on IEEE 802.11a, 802.11b, and Hiperlan2 standards.
  
  
• Complete transmitter and receiver models support all data rates specified in the IEEE 802.11a standard.
  
  
• Pre-defined system measurements include:
  
  
  • Output RF Spectrum
    
    
  • Error Vector Magnitude (EVM)
    
    
  • Power Measurements
    
    
  • Bit Error Rate (BER)
    
    
  • Packet Error Rate (PER)
    
    

• Pre-defined system measurements include Output RF Spectrum, Error Vector Magnitude (EVM), Power Measurements, Bit Error Rate and Packet Error Rate for IEEE 802.11a.
  
  
• Pre-configured test and verification projects support standard compliant measurements for IEEE 802.11a and Hiperlan2 Physical layers.
  
  

Product Description

E8874A Wireless LAN (WLAN) Design Library enables a WLAN design team to more rapidly design and verify IEEE 802.11a,b,g and Hiperlan2 based systems. Each specification presents its own design challenges and requirements for specification measurement and simulation sources, sinks and other system components. The WLAN Design library provides all these preconfigured simulation elements and measurement setups freeing the designer to spend the majority of their time on actual circuit design and optimization.

IEEE 802.11a uses 300 MHz of Bandwidth in the 5 GHz UNII band. Its specifications are based on wide bandwidth and a high data rate - up to 54Mb/s for multimedia (video) -data transmission based on OFDM technology.

IEEE 802.11b operates in the highly populated 2.4 GHz ISM band. It uses eight chip Complementary Code Keying (CCK) as the modulation scheme to achieve a data transmission rate of up to11 Mb/s.

IEEE 802.11g will increase 802.11b data rates to 54 Mb/s by using OFDM in the 2.4 GHz band.

The Test and Verification projects included with the WLAN Design Library enable designers to easily explore performance vs. cost tradeoffs--examples are EVM, CCDF, ACPR, and constellation fidelity tests that can be easily customized and simulated over a range of parameter values. This enables the engineer to easily and rapidly optimize their design for the specific appliacation

Power Amplifier designers can predict whether their circuits will meet system design requirements by substituting their circuit design into the pre-configured baseband models for verification.

For receiver test, there are receiver minimum input level sensitivity, adjacent channel rejection, and non adjacent channel rejection tests based on IEEE 802.11 standard.

In addition, the example projects include BER and PER tests that can be run under AWGN and indoor fading conditions allowing real world impairments to be evaluated as part of the design process.

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IEEE 802.11b signal generation capability covers all data rates - 1, 2, 5.5 and 11 Mb / sec. Included are:

• 1 and 2 Mbps DSSS signal source test
  
• 5.5 and 11 Mbps CCK signal source test
  
• 5.5 and 11 Mbps BPCC signal source test
  

• Rate
  
• PLCPType
  
• Octets
  
• ClocksBit
  
• InitPhase
  
• ScrambleInit
  
• PwrType
  
• RampTime
  
• OverSampling
  
• IdleInterval
  
• FilterType
  
• Taps
  
• Alpha
  
• BT
  

Links to Test Equipment

Links between Advanced Design System and test equipment such as the Agilent Vector Signal Analyzer help bridge the gap between design and test for a more seamless design flow.

Product Details

For additional product details, please consult the product overview and the other publications that are listed under Product Literature.

Agilent Technologies Bluetooth and Wireless LAN Research & Development

For an overview of all Agilent Technologies products for Bluetooth and Wireless LAN chipset and component designers, click on the following link:

• Agilent Technologies Bluetooth and Wireless LAN Products
  

How To Buy

To request immediate sales assistance - for help choosing the best system; for product configuration and integration details; to request telephone assistance or an on-site demo of the software; or to request a price quotation - click on the following link:

• Agilent EEsof EDA Sales Assistance

Configuration Details

Required

• E8823A Ptolemy Simulator
  
• E8900A Design Environment
  
• E8901A Data Display
  

Related Products

• E8850A/51A/52A Communication Systems Designer
  

Product Literature

• RF Testing of Wireless LAN Products   Application Note 1380-1.
  (PDF, 6.4 MB)   40-page Application Note. 29 September 2001.
  

Technical Articles

• Kerry Z. Cai and Pengfei Zhang, RF Micro Devices Inc., The Effects of IP2 Impairment on an 802.11a OFDM Direct Conversion Radio System, Microwave Journal, February 2004. Current issue: Microwave Journal.
  
  
• Dingqing Lu and Jinbiao Xu, Agilent Technologies, A WLAN Test System Using Test Equipment With EDA Software, analogZONE, 23-page technical paper, 5 May 2003. PDF Version (210 KB). Current Issue: analogZONE.
  
  
• Afshin Amini, Dingqing Lu, and Cory Edelman, A Simulation Environment for Selection of Power Amplifiers in 5 GHz WLAN Applications, DesignCon 2002, 28 January 2002. 24-page technical paper.   (PDF file, 2.8 MB)
  
  
• Joe Troychak, Design and Verification of IEEE 802.11a 5 GHz Wireless LAN, ChipCenter Technical Note, December 2001.   PDF Version   (PDF file, 2.1 MB).   Current issue: ChipCenter.
  
  
• Cory Edelman, Improving the Predictability of RF/DSP Transmitter Design, Communication Systems Design, August 1999.   Current issue: Communication Systems Design.
  
  

Design Seminars

• Agilent EEsof EDA Advanced RFIC Seminar 2004.   Downloadable PDF versions of the papers in this seminar given in Europe and North America in March and April 2004. Includes the paper "Meet in the Middle" on using wireless library models and test benches in Cadence AMS Designer.
  

• NetSeminar: Wireless LAN - A Unified Physical Layer Design and Measurement Environment.   Afshin Amini, Joe Troychak, Agilent Technologies, 6 March 2002. Web site. Brief registration required.
  

• Wireless Networking Design Seminar.   Agilent Technologies, November 2001 - January 2002. Papers, ADS project files.
  

News and Events

Seminar Archive: Wireless Networking Design Seminar

In this seminar, Agilent Technologies application engineers present both software and hardware solutions for wireless networking.

Software solutions include ADS simulation of wireless LAN systems and an 802.11a DesignGuide. Combined hardware and software solutions presented include design verification for IEEE 802.11a 5 GHz wireless LAN systems.

WLAN and Bluetooth demos will highlight the benefits of software/hardware connected solutions. Agilent Technologies application engineers will also be available to discuss your particular design and measurement challenges.

Click on the following link for the complete seminar archive:

• Wireless Networking Design Seminar
  

Training Classes

Designing Wireless LANs Using Advanced Design System

This live, interactive e-Learning course provides a detailed presentation of WLAN 802.11a technology and its implementation in Agilent's Advanced Design System (ADS). Pricing is kept low by using web technology to deliver the training.

The course begins with a discussion of Orthogonal Frequency Division Multiplex (OFDM) as the enabling technology for WLAN applications. The 802.11a-compliant signal source implementation in ADS is then presented. System level measurements like Tx EVM and Rx BER measurements are also covered for both transmitters and receivers. Connected Solutions applications for WLAN systems are part of the hands-on labs completed by the students. WLAN signals are downloaded into the ESG signal generator and read back into ADS using the 89600 VSA. Each student will be provided with a prototype board for measurements. Classes are available at convenient times for students worldwide.

For detailed course descriptions and class schedules worldwide, click on the following link:

• Agilent EEsof EDA Customer Education

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