Multi-user detection using MIMO channel estimator applied to GSM communications

We propose in this paper to use multiuser detection techniques on the 2G GSM system allowing either higher data rates for point to point communications or multiuser transmissions thus increasing the uplink capacity. Multiuser detection techniques are applicable in such non spread spectrum systems if the number of reception antennas is equal to or larger than the number of transmitters. This system is actually tested in subway propagation conditions for an IST funded project named ESCORT.