Two-Group Resource Allocation with Channel Ordering and Interference Cancellation

A modified two-group resource allocation scheme is tested with three channel ordering schemes, a hard decision parallel interference cancellation (HDPIC) scheme and a successive interference cancellation (SIC) scheme to improve the data rate. Channel ordering ensures channels with the lowest energy requirement are loaded with the higher data rate in the two-group resource allocation scheme but may yield an increased computational load, which affects the feasibility of hardware implementation such as in Femtocells. Furthermore, channel ordering is also needed in SIC schemes to reduce error propagation loss, hence improving detection reliability.