How do OFDM applied to Wi-Fi and WPAN differ in performance?
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OFDM applied to Wi-Fi and WPAN differ in performance in terms of peak-to-average power ratio (PAPR), spectral efficiency, and bit error rate (BER) performance. Wi-Fi OFDM systems typically have high PAPR, requiring power amplifiers to operate with large input power backoff . On the other hand, WPAN OFDM systems use a quasi-constant-amplitude scheme to reduce PAPR, resulting in lower levels of out-of-band emission (OOBE) . In terms of spectral efficiency, WPAN OFDM systems based on multiwavelets achieve higher efficiency compared to Wi-Fi OFDM systems based on discrete Fourier transform (DFT) . Additionally, WPAN OFDM systems using minimum mean square error-frequency domain equalization (MMSE-FDE) achieve a lower peak-power and capacity than conventional Wi-Fi OFDM systems . Finally, the BER performance of Wi-Fi OFDM systems is affected by the use of differential phase-shift keying (DPSK), which results in a 3 dB loss in signal-to-noise ratio (SNR) .
Answers from top 5 papers
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| Papers (5) | Insight |
|---|---|
| The paper does not provide specific information about the performance differences between OFDM applied to Wi-Fi and WPAN. | |
| The proposed quasi-constant-amplitude OFDM scheme for wireless communication systems outperforms the conventional constant envelope OFDM in terms of bit error rate (BER) performance and out-of-band emission (OOBE) reduction. | |
67 Citations | The paper does not provide specific information about the performance differences between OFDM applied to Wi-Fi and WPAN. |
20 Jul 2015 2 Citations | The provided information does not mention anything about OFDM applied to Wi-Fi and WPAN, so it is not possible to answer the question based on the given text. |
| The paper does not provide a direct comparison between OFDM applied to Wi-Fi and WPAN in terms of performance. |
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