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#1 2017-Apr-19 09:53:47

shanggdlk
Member
Registered: 2017-Apr-12
Posts: 7

about the SISO/MIMO OFDM example bandwidth

Hi sir,

I want to know what's the bandwidth of the transmitting signals in the SISO/MIMO OFDM demo? How can find it and change it?

Thanks!

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#2 2017-Apr-19 11:19:43

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 4615

Re: about the SISO/MIMO OFDM example bandwidth

The WARPLab OFDM examples use a 20MHz bandwidth. The M code implements 2x interpolation (Tx) and decimation (Rx) to adapt the 20MHz bandwidth to the 40MSps DAC/ADC frequency in the WARPLab reference hardware design. The easiest way to change the bandwidth would be to modify the interpolation/decimation processes in the M code.

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#3 2017-Apr-19 12:58:58

shanggdlk
Member
Registered: 2017-Apr-12
Posts: 7

Re: about the SISO/MIMO OFDM example bandwidth

Thanks so much, Murph.

murphpo wrote:

The WARPLab OFDM examples use a 20MHz bandwidth. The M code implements 2x interpolation (Tx) and decimation (Rx) to adapt the 20MHz bandwidth to the 40MSps DAC/ADC frequency in the WARPLab reference hardware design. The easiest way to change the bandwidth would be to modify the interpolation/decimation processes in the M code.

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