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WiPAN LVSG: IEEE 802.15.4/ZigBee PHY+MAC Signal Generation Solution
 

WiPAN LVSG-Rx Testing

Overview

The WiPAN LVSG signal generation solution is designed to generate IEEE 802.15.4 compliant signals in the 2450/868/915 MHz bands. WiPAN LVSG seamlessly integrates with the NI PXI RFSG 5670 vector signal generator. WiPAN LVSG gives full control over PHY and MAC parameters and facilitates the user to define a delay between packets with options to save and load MPDU and payload configurations (MSDU) to/from a file.

To save time and speed up the development process, WiPAN LVSG facilitates the generation of frames by customizing the MAC settings or building a sequence of frames. Customizing MAC settings can be done in three flexible options (Load MPDU data, Advanced Configuration, or Default settings). Sequences of different frames can also be generated.

WiPAN LVSG allows modeling and viewing of various impairments for simulation purposes and facilitates the viewing of key measurements with IQ plots, Eye Diagrams, Constellation diagrams (before and after pulse shaping) and a Power Spectral Density Plot.

 

Features

Supported frequency range
   
2450/868/915 MHz
   

Modulation formats Supported

   
O-QPSK modulation with half-sine pulse shaping
BPSK modulation with raised cosine spectrum
   

MAC Frames Supported
   
Data Frame
Beacon Frame
MAC Command Frame
 
•
 Association request
•
 Association response
•
 Disassociation notification
•
 Data request
•
 PAN ID conflict notification
•
 Orphan notification
•
 Beacon request
•
 Coordinator realignment
•
 GTS request
Acknowledgement Frame
   

Generate frames with same/varying
sequence number
   

Import options

   
Load MPDU
Load Payload data (MSDU)
   

Save Options
   
Save MPDU
Save Payload data (MSDU)
   

Encryption Algorithm
   
AES-CCM-128 security suite
   

Generate multiple frames or sequence
of frames in one shot
   

Mode of Transmission
   
Continuous mode transmission
 
•
 Modulated Spectrum
•
 Unmodulated Carrier
Burst mode transmission
 
•
 Packet transmission with
User-defined delay between packets
 

Supported Data configuration patterns
   
User defined Pattern
Predefined Pattern
Text
PRBS
MSDU payload (user configured)
   

Impairments Supported
   
Memoryless Nonlinearity
AWGN (Additive White Gaussian Noise)
Frequency Offset
DC Offset
I/Q gain imbalance
Quadrature skew
Phase noise
   

Measurements
   
IQ Plot ( First 100 Samples)
Complete IQ Plot
Constellation Diagram (Before and After Pulse Shaping)
Power Spectrum plot
Eye Diagram
MAC Layer Parameters
 
•
 Frame Type
•
 Destination Pan ID
•
 Source Pan ID
•
 Sequence number
•
 FCS (Frame Check Sequence)
•
 Encryption Status
•
 Acknowledgement Request
•
 Destination MAC Address
•
 Source MAC Address
•
 Frame body
•
 Number Of Frames
   

Configurations
   
Configure delay between frames
Configure output power level
Configure the channel
Enable/Disable Impairments Configuration
Configure Acknowledgement Request
Configure transmissions to Inter or Intra PAN
Configure addressing modes as 16 bit or 64 bit
Configure Frame Sequence number
Configure Frame Security
   

Generates signals in all the 16 channels


Figure 1: MAC Frame Format
Figure 2: Modeling Of Impairments
 

 

Advantages
 
Verification of chipset designs
Communicate with devices within and outside PAN
Researchers and academicians can carry out their research on IEEE 802.15.4 (2.4 GHz) WPANs with ease
IP vendors can validate their WPAN IP for market acceptance.
Generates ideal and impaired data which helps the designers to Test/Analyze Receiver performance with ease
Easy to use GUI
Designers can move quickly from the simulation domain to generation of real world WPAN signals
Seamless integration with NI PXI 5670 RFSG
 

IQ Plot of first 100 samples
 

IEEE 802.15.4/ZigBee signal generation solution is available for all three IEEE 802.15.4 radio bands.
   
WiPAN LVSA 2450 : To test, measure and analyze the performance of ZigBee receivers operating in 2450 MHz band
 
  
WiPAN LVSA 868/915: To test, measure and analyze the performance of ZigBee receivers
operating in 868.3 to 924 MHz bands
 

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