Performance Improvement of Collaborative Interference Cancellation in Fast Fading Environments
Details
In this paper, collaborative interference cancellation (CIC), which is one of the multi-user MIMO system, is studied. The users share their received signals with neighboring users and generate weights for inter-user interference. In fast time-varying channel, there are channel fluctuation in each packet, so channel tracking for compensation is needed. Decision-directed tracking loop scheme is employed and the performance improvement on experimental system using a fading emulator than MMSE receiver is presented.
