Changes between Version 47 and Version 48 of DSC/QandA


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Timestamp:
Jul 8, 2013, 6:37:22 PM (11 years ago)
Author:
trappe
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  • DSC/QandA

    v47 v48  
    44
    55== Tournament Q&A ==
    6  1. Q: '''For each team's receive node in the DARPA Spectrum Challenge tournaments, will the USRP SBX daughtercard have an antenna connected to the "TX/RX" port, the "RX2" port or both?''' [[BR]]
     6 1. Q: '''For each team's sink node in the DARPA Spectrum Challenge tournaments, will the USRP SBX daughtercard have an antenna connected to the "TX/RX" port, the "RX2" port or both?''' [[BR]]
    77    A: Each node has both antennas attached as shown in the image below. [[BR]] [[Image(wiki:Hardware/fDevices/gUSRP:SBX Antenna Placement.jpg,width=200, title="SBX Antenna Mounting", caption="SBX Antenna Mounting")]]
    8  1. Q: '''I realize that the configuration is referred to as "tentative", but I am hoping to receive confirmation for the USRP2's tagged as Team A and Team B as to whether they are the transmitter or receiver.'''[[BR]]
    9     A: Each team gets two nodes with transmitter in the lower-left corner and receiver in the upper-right corner (tournament node assignment figure below). Please note that '''only''' transmitters are allowed to draw packets from the packet server and that '''only''' receivers nodes are allowed to submit packets to the packet server for scoring. The team nodes are:
    10    * '''Team A''': node20-19 is transmitter;  node2-1 is receiver
    11    * '''Team B''': node19-20 is transmitter;  node1-2 is receiver
    12    * '''Team C''': node19-19 is transmitter;  node1-1 is receiver
     8 1. Q: '''I realize that the configuration is referred to as "tentative", but I am hoping to receive confirmation for the USRP2's tagged as Team A and Team B as to whether they are the source or sink.'''[[BR]]
     9    A: Each team gets two nodes with a source in the lower-left corner and a sink in the upper-right corner (tournament node assignment figure below). Please note that '''only''' sources are allowed to draw packets from the packet server and that '''only''' sinks nodes are allowed to submit packets to the packet server for scoring. The team nodes are:
     10   * '''Team A''': node20-19 is a source;  node2-1 is a sink
     11   * '''Team B''': node19-20 is a source;  node1-2 is a sink
     12   * '''Team C''': node19-19 is a source;  node1-1 is a sink
    1313 1. Q: '''We just want to make absolutely certain what those constraints are in terms of physical hardware specs so that when we log into ORBIT to test our designs, we know if we're using the "target" systems that will be used in the tournament. We also want to make certain that all teams in a cooperative or competitive match will have *identical* hardware for their pairs of transceivers so that all teams are operating under identical constraints.''' [[BR]]
    1414    A: Both cooperative and competitive matches will have identical hardware (i.e. [wiki:Hardware/hNodes/cNodeVer3/aMain/bLV67G#LV-67 GLV-67G based] nodes with USRP N210 and SBX). The actual nodes that will be used for the tournament are shown in the figure below. Also, the nodes in SB2, SB3 and SB7 are identical to the tournament nodes in the grid and are intended for code development and testing.[[BR]] [[Image(NodeAssignement.jpg, width=200, title="Figure 1: Tournament Node Assignment", caption="Figure 1: Tournament Node Assignment")]]