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The discussion on what is the most appropriate air interface for multiple Gbit/s radios @ 60GHz concentrates around the question: to OFDM or not to OFDM. This paper brings the arguments for two candidate modulation techniques, both exploiting frequency domain processing, focusing on the trade-off between performance and implementation cost and power. Importantly, the fact and figures are presented, to lift the tradeoff discussion beyond the (non) believers' myth. The results tend to plead for the single carrier alternative, especially if power consumption is crucial.
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