Analog Multitone with Interference Suppression: Relieving the ADC Bottleneck for Wideband 60 GHz Systems

Download Now Date Added: Nov 2012
Format: PDF

Commercial exploitation of the large amounts of unlicensed spectrum available at 60 GHz requires that the authors take advantage of the low-cost Digital Signal Processing (DSP) made available by Moore's law. A key bottleneck, however, is the cost and power consumption of high-precision Analog-to-Digital Converters (ADCs) at the multiGigabit rates of interest in this band. This makes it difficult, for example, to apply traditional DSP-based approaches to channel dispersion compensation such as time domain equalization or Orthogonal Frequency Division Multiplexing (OFDM), since these are predicated on the availability of full-rate, high-precision samples.