[Discuss-gnuradio] problem of demodulation

Hi: Lately, I encountered a problem with tx/rv packets by using tunnel.py script. In 2.4GHz band, there are two nodes trying to ping with each other. GNUradio node A can receive ping message but the node B can't. So I check the rx-power-log and see the power level of both nodes have similar str

[Discuss-gnuradio] USRP problem

Hi: I have a problem about USRP daughterboard RFX2400. I use "tunnel.py" to test if some nodes can communicate with each other in 2.4GHz by pinging function. Say there are three nodes: N1, N2 and N3. N1 & N2 can ping with each other and N2 & N3 can receive the ping packets too. However, N1 &

[Discuss-gnuradio] USRP problem

Hi: I have a problem about USRP daughterboard RFX2400. I use "tunnel.py" to test if some nodes can communicate with each other in 2.4GHz by pinging function. Say there are three nodes: N1, N2 and N3. N1 & N2 can ping with each other and N2 & N3 can receive the ping packets too. However, N1 &

[Discuss-gnuradio] Switch Freq when packet transmitting

Hi: Lately, I have tried to modify tunnel.py to switch freq in the middle of packet transmitting. But I have two problems. 1. When I tried to switch freq in the same daughterboard, should I have to stop the original transmission thread(tb.start) and start a new thread with new freq? Or are th

[Discuss-gnuradio] power control when packets transmitting

x27;t think mblock is mature now? I appreciate any suggestions! Thanks!! KC Huang ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Re: About Latency

: "Eric Blossom" <[EMAIL PROTECTED]> To: "KC Huang" <[EMAIL PROTECTED]> Cc: Sent: Friday, October 05, 2007 8:29 AM Subject: Re: About Latency On Thu, Oct 04, 2007 at 03:22:40PM -0400, KC Huang wrote: Hi all: I have two questions about Gnuradio latency: 1. In

[Discuss-gnuradio] About Latency

Bytes packet than the smallest allowed 512 Bytes? So, in this logic, the latency of usb will increase although the throughput is increased. Am I correct? If not, what's wrong with my thought? Thanks for ur reply advance!! KC Huang ___ D

[Discuss-gnuradio] Socket in GNU

t to "gr_file_descriptor_source(or sink)"? or what should I do that can let Click to control the packet in GNU? Any Comments will be appreciated!! Thanks! KC Huang ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.

[Discuss-gnuradio] About TDMA protocol with Gnuradio and Click

Click and Gnuradio? 2. How does Click router control the PHY written by Gnuradio? I appreciate ur help! Thanks in advance!! KC Huang ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Question of CSMA example

Hi: I have a question about CSMA example(tunnel.py): Why does the default value of CSMA threshold set to 30dB? if it is absolute value, I think it will be too high. Or is it the relative value to noise level? Thanks in advance for any comments! KC __

[Discuss-gnuradio] Re: OFDM implementation

Hi: Why I run the benchmark_ofdm and there is a warning like below? gr_buffer::allocate_buffer: warning: tried to allocate 20 items of size 1600. Due to alignment requirements 64 were allocated. If this isn't OK, consider padding your structure to a power-of-two bytes. On this platf

[Discuss-gnuradio] Question of MAC implementation

Hi: I am new to GNU radio. Recently, I want to implement MAC layer protocol(like ALOHA, slotted-ALOHA) to the USRP. Therefore, first, I tried to search the archive about ALOHA example. But, I cannot find any article that really provides the example of MAC protocol. So, I want to ask that if the