Minimum Energy Per Bit for Wideband Wireless Multicasting: Performance of Decode-and-Forward

Download Now Date Added: Dec 2009
Format: PDF

The authors study the minimum energy per bit required for communicating a message to all the destination nodes in a wireless network. The physical layer is modeled as an additive white Gaussian noise channel affected by circularly symmetric fading. The fading coefficients are known at neither transmitters nor receivers. This paper provides an information-theoretic lower bound on the energy requirement of multicasting in arbitrary wireless networks as the solution of a linear program.