In order to solve the problem of mufti-user interference among neighbor cells under generalized distributed net-work

system model of interference cell set is established

followed by two proposed algorithms for mufti-user joint interference suppression.In which

the Crossed Iterative Joint Detection(CI-JD) algorithm performs stepwise interference cancellation among multiusers and could improve the system performance effectively with a little extra complexity

while the Global Joint Detection(GI-JD) algorithm builds a unified model with mufti-users' infomtation and could not only restrain mufti-user interference but also obtain divecsity gain in the process of detection.Simulation results validate the feasibility and significant effect of the two algorithms.