author = {M. Wu and D. W\"{u}bben and A. Dekorsy},
  year = {2011},
  month = {Jul},
  title = {BER-based Power Allocation for Decode-and-Forward Relaying with M-QAM Constellations},
  URL = {http://iwcmc.org/},
  address={Istanbul, Turkey},
  abstract={In this paper we develop a power allocation scheme for a single-relay 
system applying Decode-Forward (DF) based on the resulting bit error 
rate (BER) at the destination. First, an analytical expression for the 
BER for M-QAM modulation considering estimation errors at the relay is
derived. Based on this expression, the total transmit power is 
optimally assigned to the source and the relay in order to minimize the 
probability of errors at the destination. The preciseness of the derived
closed form expression as well as the superior performance of the 
proposed DF-based relaying system are demonstrated by simulation 
  booktitle={7th International Wireless Communications and Mobile Computing Conference (IWCMC 2011)}