Performance of adaptive mobile terminal selection schemes for collaborative MMSE linear MIMO detection

Abstract

In collaborative multi-input multi-output detection, a virtual terminal consisting of neighboring mobile stations (MSs) is formed. This virtual terminal acts as a single MS with a large number of antennas. In this system, received signals of MSs in collaboration with each other are shared through short-range wireless communications. In this paper, in order to reduce the amount of collaboration traffic, simple adaptive MS selection schemes are studied by an urban measurement campaign using a software-defined testbed operating at 5.1 GHz. The MS selection schemes perform close to the full collaboration scheme, and outperform the round-robin scheme.