I would like to announce two GNUradio based papers that I
published/submitted a few months ago. The full reference of the papers
Muhammad Nazmul I., Byoung-Jo J. Kim, Paul Henry, Eric Rozner, “A
Wireless Channel Sounding System for Rapid Propagation
submitted to International Conference on Communications 2013. (
Muhammad Nazmul I., Shantharam Balasubramanian, Narayan B.
Ivan Seskar, Sastry Kompella, “Implementation of Distributed Time
Based Cooperative Forwarding http://arxiv.org/abs/1210.5424”,
in Military Communications Conference 2012
I also want to address a particular point about my channel sounding
experiments. I have seen several channel sounding based posts in the
mailing list where the authors talk about the speed bottlenecks of
ethernet cable. Basically, the speed bottleneck of the ethernet cable or
the computer limits the temporal resolution of the sliding correlator
channel sounding. For example, if you transmit at 10 Mega Symbol/sec,
can only find multipath components at 100 ns, 200 ns, etc. However, this
problem can be bypassed by using frequency domain channel sounding. One
send a frequency hopping sequence, determine the frequency domain
characteristics and then find the channel impulse response through
FFT. In this case, the temporal resolution of the multipath components
won’t depend on the symbol rate. The paper #1 talks about both sliding
correlator and frequency domain channel sounding approaches.
I took the opportunity to add a copy on the academic papers section:
Feedback and comments will be very appreciated.
Muhammad Nazmul I.
Electrical & Computer Engineering
Wireless Information & Networking Laboratory