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From: | George Nychis |
Subject: | Re: [Discuss-gnuradio] MAC layer issue |
Date: | Wed, 07 May 2008 18:17:27 -0400 |
User-agent: | Thunderbird 2.0.0.12 (X11/20080227) |
Hi Chin-Ya,MAC implementations are currently a work in progress in GNU Radio, that is making headway with the new m-blocks and in-band signaling but not done yet.
You do not need a true MAC layer to transmit packets. The PHY transforms bits in to some waveform, right? There is nothing stopping a transmitter and receiver from making sense of these bits.
OFDM sends and receives packets the same way benchmark_tx/rx.py do. The transmitter has some framing bit sequence that the receiver is going to look for while it decodes the bits. If it sees the bit sequence, it shoves the next X bits into a structure, which is your packet. Or, it decodes enough to hit a payload field and then determines how many bits to decode next as the payload.
Dig in to the code and following code: ./gnuradio-core/src/python/gnuradio/ofdm_packet_utils.py - George CHIN-YA HUANG wrote:
Hey, Does gnuradio implement any MAC layer thinngs, otherwise how the ofdm send and receive packets? Thanks Chin-Ya _______________________________________________ Discuss-gnuradio mailing list address@hidden http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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