Energy-Efficient Multicast Transmission for Underlay Device-to-Device Communications: A Social-Aware Perspective

Algorithm 1

An energy-aware resource and power allocation scheme for D2D multicast transmission.

()  : List of D2D groups

()  : List of CUE items

()  Build matrix according to (17)

() 

()  while and   do

()    

()    Find and from (18)

()   if   and   then

()    D2D group m share resource with CUE n,

()   Substitute and into maximization problem built in (16), find the minimum transmit

     power so as to solve the overall energy-efficiency problem for D2D groups,

()   ;

()  else

()   ;

()  end if

() end while