Local ARQ: A New Way for Exploiting Multiple Detection-Terminals

Collaborative multiple-input multiple-output (MIMO) reception is a new form of MIMO transmission technique. In collaborative MIMO reception, neighboring mobile stations (MSs) collaborate with a target MS to decode MIMO signals from a base station. In this study, an MS side error-control scheme that utilizes multiple detection MSs within the collaborative MS group is proposed. In this scheme, a detection MS requests a better detected bit sequence from other MSs, similar to automatic repeat request performed locally. This scheme improves the error rate performance at the expense of computational complexity. Computer simulations are used to study the frame error ratio performance and the amount of collaboration traffic.