Known Issues

Changelog / History

REVISION
RELEASE TYPE
DESCRIPTION / MAJOR MODIFICATIONS TO PRIOR VERSION
beta 3.* testing continuous bugfix releases and small addons
beta 3.0 testing major bugfix release; several severe bugs were fixed and some self-tests were brought up-to-date

beta 2.0

testing (unstable)

  1. revised and extended detuning model (tag reflection coefficient)
    - heuristic antenna detuning model
    - modified mapping of assembly/detuning to characteristic ID
  2. revised and extended channel model
    - linked VTX to surface model (inhomogeneous surfaces)
    - added transmission and diffraction (very basic!)
  3. UWB field probe mode (recording of channel impulse responses)
beta 1.0 stable  

 

Major Issues

REVISION
DESCRIPTION
beta 3.*
  1. some (rarely used) functions are outdated and thus broken
  2. core functionalities of channel and tag are not covered by selftests (selftests have been deactivated until they are up-to-date)
  3. The directivity gain of the receiver is not excluded in the 'outdoor' mode (used by VTX)
  4. [fixed in rev. 14] readlink does not work on Mac (parameter -f unknown)
    Thanks to John O'Hollaren, Duke University, for reporting this bug!
  5. [fixed in rev. 15] special characters in host- and filenamenames caused an error in loadmat when caching was activated (not all characters were properly filtered)
    Thanks to John O'Hollaren, Duke University, for reporting this bug!

beta 2.0
 

  1. some (rarely used) functions are outdated and thus broken
  2. core functionalities of channel and tag are not covered by selftests (selftests have been deactivated until they are up-to-date)
  3. VTX are not treated correctly in the entire return link, including demodulation/decoding. The 3-D gate simulation should thus be used only in field probe mode (standard mode produces incorrect results).
  4. The directivity gain of the receiver is not excluded in the 'outdoor' mode (used by VTX)
  5. [fixed in rev. 3] line 137 in globalinit.m should read newpath = allpaths{i}; (Windows users only). Thanks to Ulrich Muehlmann, NXP, for reporting this bug!
  6. [fixed in rev. 4] mfcw_gate3d.m contains a stray call of renew_ticket in line 77 (should be deleted). Thanks to Markus Cremer, FH Koeln, for reporting this bug!
  7. An issue with Matlab 2007 was apparently reintroduced with 2011b. This issue causes problems with several Matlab functions (open, load, print, ...) on certain systems if a message.m function is present. (Confirmed on: Kubuntu 11.10 and SUSE 11)     Users can fix this issue by typing restoredefaultpath in the command window. Unfortunately, some simulator functions rely on affected Matlab functions. Consequently, this problem prevents proper operation. message.m will be renamed to msg.m in future revisions.
beta 1.0
  1. line 129 in globalinit.m should read newpath = allpaths{i}; (Windows users only)

 

Minor Issues

REVISION
DESCRIPTION
beta 3.*
  1. (for older Matlab versions) RandStream.setGlobalStream causes an error
    fix: switch back to RandStream.setDefaultStream in globalinit.m
beta 2.0
  1. the file headers might be incomplete for some files; esp. concerning loaded characteristics
beta 1.0
  1. the file headers might be incomplete for some files; esp. concerning loaded characteristics
  2. mfcw_statisitcs.m, line 144-145: the tag characteristic 'c-p2a' with cat=250 is not in the repository; use 'b-p2a' with cat=400 instead or recalculate the characteristic