[Discuss-gnuradio] Fw: problem in USRP communication (my aim is to decrease BER in real time communication using USRP2 )

[Irfan Ullah]

----- Forwarded Message -----
From: Irfan Ullah <address@hidden>
To: "address@hidden" <address@hidden>
Sent: Saturday, May 18, 2013 3:53 AM
Subject: problem in USRP communication (my aim is to decrease BER in real time communication using USRP2 )

hi all,

         i am working on USRP kits and my project main purpose is to decrease BER in real time communication using DPSK modulation. i take random data and encode it by packet encoder and then modulate it using DPSK modulation but the problem with my communication is that when i use packet 

encoder with DPSK modulation the reciever did not show BER means do not work properly the data is recieved but it does not show BER value and when i remove packet encoder block and only use DPSK modulation then it willl work and show BER value so someone tell me the solution of this problem the pictures of my flow graphs are atached to this mail.

Regard  Irfan Ullah

source.grc
Description: application/gnuradio-grc

source_usrp12.grc
Description: application/gnuradio-grc

distination_usrp.grc
Description: application/gnuradio-grc

error_usrp.grc
Description: application/gnuradio-grc