ITERATIVE INTERFERENCE CANCELLATION FOR FFH MFSK MA SYSTEMS/

Iterative interference cancellation is introduced to improve system sp ectral efficiency in fast frequency hopping multiple access systems, T he proposed algorithm iteratively cancels interference from users whos e symbols have already been estimated. Both an interference-only chann el and a frequency selective fading channel are considered, Noncoheren tly detected M-ary frequency shift keying is employed and all users ar e time-aligned at the receiver. Analytical results and results obtaine d from computer simulations are presented. It is shown that iterative interference cancellation may either substantially reduce the bit erro r probability or allow for a large increase in the number of simultane ously transmitting users.