Signal sources are needed in R&D (or Production) for testing RF modules to evaluate basic WLAN Receiver functionality and when new RF designs are being evolved. Engineers now have a highly precise and flexible signal generation solution to do so.

WiLANTA LVSG11bg is a comprehensive software for generating IEEE 802.11b and IEEE 802.11g compliant signals (including their PHY+MAC layers) in the 2.4 GHz ISM (Industrial Scientific and Medical) band. WiLANTA LVSG11bg seamlessly integrates with the NI PXI RFSG 5670 to generate ideal and/or impaired IEEE 802.11b/g compliant RF signals, providing the user with complete control over the MAC frames (Management, Control and Data).

It facilitates configuration of all the MAC frame fields as mentioned in the standard along with duration ID (lets you to set the network allocation vector field and amount of time the frame occupies the channel). WiLANTA LVSG11bg generates multiple frames (i.e., frame sequences) in just one click. The sequence can be a combination of various frame types. This saves the time spent on configuring individual frame types.

The measurement set includes Power Spectral density plot, IQ Plots, Transmitter Power Plot, Constellation and Eye diagrams.

IEEE 802.11b/g signal generation solution is available in two versions

	WILANTA LVSG11bg- Real Time Signal Generation Solution
	WiLANTA IQ Generator – Creates IEEE 802.11a/b/g compliant signal files
	Know more about IQ Generator

Standards Supported

	IEEE 802.11g
	IEEE 802.11b
	IEEE 802.11a

Supported frequency range

5 GHz Band

Data Rates Supported

1,2,5.5,6,9,11,12,18,24,36,48,54 Mbps

Modulation formats Supported

	OFDM
	CCK/DSSS

Supports all the Sub Frame types mentioned in standard

Measurements

	IQ plot
	Constellation Diagram
	Transmit power plot
	Power Spectrum plot
	CCDF plot

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

Data configuration patterns

	User defined Pattern
	Predefined Pattern
	Text message
	PRBS (PN Sequence)

Impairments Supported

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

Configurations

	Enable/Disable MAC configuration
	Enable/Disable Impairments Configuration
	Enable/Disable Scrambler
	Adjust transmit frequency
	Configure Output Power

Display Parameters

	Standard
	Modulation
	Data Rate
	Number of packets transmitted
	Data Payload (Octets)
	Impairments Applied
	Network Type
	Frame and subframe Type
	Destination and Source Addresses
	BSSID
	FCS
	Entire Frame Body

Extensive Graphical capabilities

	User defined plot color and style of lines
	Zoom
	Markers

Set up

IEEE 802.11b/g signal generation set up to analyze/study the receiver characteristics of 802.11b/g device

WLAN Standards Supported

Full control over MAC Frames

WiLANTA LVSG11bg provides the functionality to generate all IEEE 802.11b/g MAC frames mentioned in the standard. WiLANTA LVSG11bg facilitates the configuring of various frame fields such as Frame type, sub frame type, Network type, Destination address, Source address, BSSID, Duration ID (Set NAV, time occupied by frame), Fragment number, and Sequence number. The generator offers Enabling/ Disabling of WEP Encryption and retransmission of previous frames. The power management status can be set as ‘Active Mode’ or ‘Power Saving Mode’.

IEEE 802.11b/g MAC Frame Format

IEEE 802.11b/g MAC Frame and Sub Frame types supported by WiLANTA LVSG11bg

Generate impaired signals

For simulation purpose WiLANTA LVSG11bg allows modeling and viewing of various impairments. The addition of these impairments transforms WiLANTA LVSG11bg from ideal signal generation solution to Signal+noise generator solution.

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

Impairments Configuration

Generate multiple frames at one shot

To communicate with a device it is required to generate different kinds of frames such as RTS frames, association requests, and so on. This process is time consuming and involves delay between frames. WiLANTA LVSG11bg reduces time and delay by allowing the user to transmit multiple frames one after the other in just one click. The frame sequences can be a combination of data, management and control frames that include sub-frames.

Build Sequence of Frames – Advanced Settings

Visualize your signal with Graphical capabilities

WiLANTA LVSG11bg supports various graphical features to better visualize the signal. Change the appearance of the plot by changing the color, thickness, and style of lines. Markers (horizontal and vertical) help you to spot coordinate positions and read the signal values. WiLANTA LVSG11bg provides five different zooming options to investigate the signal in detail.