The Wideband Networking Waveform is a high data rate Coded Orthogonal Frequency Division Multiplexing (COFDM) digital waveform developed for Joint Tactical Radio System (JTRS) applications for the Department of Defense Cluster 1 procurement. The OFDM WNW provides a signal-in-space (SiS) data transmission rate ranging from 47 Kbps up to 12.1 Mbps.

The COFDM waveform provides bandwidth efficient, mobile, wireless packet communications in the presence of common channel impairments such as multipath. The WNW physical layer technology supports reliable wireless, frequency agile, bandwidth efficient communications, and heterogeneous packet switched operations that is resistant to multipath, narrowband interference and impulsive noise. The waveform offers good spectral containment, and supports a diverse set of range requirements.

WNW technology is implemented as an advanced digital signal processing waveform that employs state-of-the-art digital communication techniques including Differential Phase Shift Keying (DPSK) and Quadrature Phase Shift Keying (QPSK). To enhance reliable high data communications, the WNW waveform employs Reed-Solomon and Turbo-Code forward error correction techniques.

The WNW waveform is a Software Communications Architecture (SCA) compliant component that provides:

•	Increased operational flexibility and interoperability of globally deployed systems
•	Reduced supportability costs
•	Upgradeability in terms of easy technology insertion and capability upgrades
•	Reduced system acquisition and operation cost

The WNW waveform is structured to:

•	Provide for portability to different SCA implementations
•	Leverage commercial standards to reduce development cost
•	Reduce development time through the ability to reuse WNW modules
•	Build on evolving commercial frameworks and architectures

     Wideband Networking Waveform (WNW)
     Signal-in-Space (SiS)
     Joint Tactical Radio System (JTRS)
     Coded Orthogonal Frequency Division Multiplexing (COFDM)
     Digital Waveform
     High Data Rate (HDR)
     Line-of-Sight (LOS)
     Bandwidth Efficient
     Differential Phase Shift Keying (DPSK)
     Quadrature Phase Shift Keying (QPSK)
     Reed Solomon
     Turbo Code
     Multi-Path
     Frequency Diversity
     Time Diversity
     Frequency Hopping
     Fast Fourier Transform (FFT)
     Cluster 1
     Software Communications Architecture (SCA)