A Connection Between Locally Repairable Codes and Exact Regenerating   Codes
  Typically, locally repairable codes (LRCs) and regenerating codes have been studied independently of each other, and it has not been clear how the parameters of one relate to those of the other. In this paper, a novel connection between locally repairable codes and exact regenerating codes is established. Via this connection, locally repairable codes are interpreted as exact regenerating codes. Further, some of these codes are shown to perform better than time-sharing codes between minimum bandwidth regenerating and minimum storage regenerating codes. 
Toni Ernvall, Thomas Westerb\"ack, Ragnar Freij-Hollanti, Camilla   Hollanti
cs.IT math.IT