|
From: | SangHyuk Kim |
Subject: | Re: [Discuss-gnuradio] packet sending part |
Date: | Fri, 25 Mar 2016 11:02:43 +0900 |
SangHyuk,
you're not using the more recent OFDM blocks, so you won't get a lot of
support here -- I recommend moving to the tx_ofdm and rx_ofdm stuff instead.
Cheers,
Martin
> _______________________________________________
On 03/24/2016 04:04 AM, SangHyuk Kim wrote:
> Hi,
>
> I'm trying to understand how OFDM packet Tx working
>
> I checked Tx rate and I got a poor rate
> (qam16, freq 1.18GHz, BW 25 MHz, pkt_size 400 --> 4.0 Mbps)
>
> I found it's because msg_queue block when packet be inserted to tail
>
> When Tx calls 'send_pkt(payload, ..)', it make packet and insert to tail
> of msg_queue.
>
> And delete_head is called by ofdm_mapper_bcv_impl::work.
>
> I tried to change queue limit from 4 to 0 (non-blocking) and it caused
> down my computer (maybe memory problem)
>
> In this point, I'm wondering which part calls ofdm_mapper_bcv_impl ?
> In other words, where is actual packet transmitting part ?
>
> Thanks.
>
>
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