[Discuss-gnuradio] Programming USRP as a relay node

[Tasos Kyrillidis]

Hello everyone,

I am a postgraduate student at Technical University of Crete, Chania and i am currently working on a project with USRPs. Part of our project is to communicate with a relay node. But this relay node is a little bit slow, because there is data transfer from USRP to PC and then from PC to USRP. So, there is an idea to program the FPGA of USRP as a relay without any communication between PC and USRP - the relay node just detects packets and retransmit them without any further processing.

1. One idea is to program the FPGA to include a packet detector and a raised cosine filter. But I read somewhere that the default FPGA has only 5% available resources and i am wondering if these resources are enough for a packet detector and a raised cosine filter?

2. In case there are enough resources (in some way), could anyone estimate how difficult would be to implement it? Has the current configuration to be changed a lot or including the appropriate modules is enough?

I know that my questions are kind of abstract but i couldnt express them differently

Thanks anyway

Tasos Kyrillidis

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