I think that many RF and wireless designers make a lot of assumptions as
well and never admit to the horror of the mobile channel. LTE is not
really realizing the needed increase in capacity to justify the rollout cost
of all of the needed infrastructure in my opinion but now everyone is all
in.
On Mon, Aug 8, 2011 at 11:34 AM, shantharam balasubramanian
shantharam...@gmail.com wrote:
Hello people,
Thanks a lot for the reply. So, you are saying that the packet loss at
low transmitter amplitude in benchmark_Tx.py and benchmark_Rx.py come
from the loss of packet synchronization data,
Keep in mind the old information theorist's adage: if you don't have
bit errors, you're using too much power! (ok, I don't know how old
that is; fred harris always quotes it, but he credits someone else
with it, probably Tony Constantinides).
In other words, we normally design our systems around
On Tue, Aug 9, 2011 at 5:22 PM, Marcus D. Leech mle...@ripnet.com wrote:
Keep in mind the old information theorist's adage: if you don't have
bit errors, you're using too much power! (ok, I don't know how old
that is; fred harris always quotes it, but he credits someone else
with it,
I'm also surprised they get LTE to work...16 b/s/hz
spectral efficiencythats pretty up there.
And LTE-Advanced is spec'ing 30 bits/sec/hz at peak spectral
efficiency...which makes my head hurt just thinking about the
complexity both in the RF hardware as well as the PHY processing to
On Sun, Aug 07, 2011 at 02:47:10PM -0400, Daniel Zeleznikar wrote:
As Marcus pointed out, there will always be packet loss associated with
higher BER in real systems that employ packet switching. The only thing I
could suggest is that you somehow move further upstream in your receive
system to
Hello people,
Thanks a lot for the reply. So, you are saying that the packet loss at
low transmitter amplitude in benchmark_Tx.py and benchmark_Rx.py come
from the loss of packet synchronization data, i.e., a part of the
packet synchronization data gets lost or degraded due to low SNR. I
know
On Sat, Aug 6, 2011 at 3:54 PM, Marcus D. Leech mle...@ripnet.com wrote:
**
On 08/06/2011 06:27 PM, shantharam balasubramanian wrote:
Hi
I have been working in usrp2 testbed, and I have been modifying the
benchmark_tx and rx programs for my project. There have been situations
where I was
As Marcus pointed out, there will always be packet loss associated with
higher BER in real systems that employ packet switching. The only thing I
could suggest is that you somehow move further upstream in your receive
system to make the BER measurement happen at the bit/symbol level if you
really
Hi
I have been working in usrp2 testbed, and I have been modifying the
benchmark_tx and rx programs for my project. There have been situations
where I was supposed to introduce noise to find out BER. I did that by
giving lower transmitter amplitude values. But very low values cause packet
loss
On 08/06/2011 06:27 PM, shantharam balasubramanian wrote:
Hi
I have been working in usrp2 testbed, and I have been modifying the
benchmark_tx and rx programs for my project. There have been
situations where I was supposed to introduce noise to find out BER. I
did that by giving lower
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