LabVIEW And PXI Enhance Communications Design And Test

Never before in history has the need for new wireless and communications standards been so prevalent. While chip manufacturers are working to pack as much functionality into their latest chipsets as possible, device manufacturers are scrambling to implement this new functionality into their latest products and test these devices. To combat this accelerated product development cycle, a flexible, software-based architecture is essential to rapidly prototype, design, and test devices using current and emerging wireless and communications technologies. By stepping through a simplified functional block diagram of a typical communications system, you quickly learn how to use features in National Instruments LabVIEW software, the NI Modulation Toolkit for LabVIEW, and the PXI RF hardware platform to design and test such devices.

Source Coding and Decoding The primary operation of source coding is to represent your message in as few bits as possible to minimize resources.

Channel Coding and Decoding Unlike source coding, channel coding actually can add bits to the data, which increases the message size. Added bits ensure that the original message can better withstand the effects of any channel impairments, including noise and fading, to be properly decoded to obtain the original transmitted message.