DELAY-SENSITIVE CROSS LAYER SCHEDULER FOR MULTI-USER WIRELESS COMMUNICATION SYSTEMS

摘要

CSIT error considerate delay-sensitive user access systems provided in a multi-user OFDMA environment comprises a user delay sensitivity tracking component, a CSIT estimating component, a system queue state tracking component and a cross layer scheduling component. The techniques assume heterogeneous users with respect to delay and assume that CSIT information includes error, and optimally allocates broadcast resources, e.g., power, subcarriers and data rate, based on such assumptions.