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Addressing SDR design and measurement challenges

Posted: 24 Nov 2009 ?? ?Print Version ?Bookmark and Share

Keywords:SDR design? design measurement SDR? wireless?

As the communications industry continues to grow and evolve, it is becoming more critical to quickly, easily and cost-effectively modify radio devices to support new and emerging technologies (e.g. Mobile WiMAX and 3GPP LTE), without requiring new hardware. SDRa radio in which some or all of the physical layer functions are software definedis one technology promising to answer this need. SDRs typically comprises an RF/analog section and a baseband section that uses programmable processing technologies like FPGAs, DSPs and GPPs.

In contrast to traditional radio devices, SDRs provide an efficient and comparatively inexpensive way to enable multimode, multiband and/or multifunctional wireless devices that can be enhanced using software upgrades. Such capabilities make the SDR well suited for the communications market, which serves a wide variety of radio signal formats. For example, many engineers who are currently developing SDRs are working on OFDMA physical layer waveforms like Mobile WiMAX and LTE.

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