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This paper aims at balancing the load of small cell networks via user equipment (UE) transfer. To guarantee the fairness of both small cells and UEs, a load definition that jointly considers the small cells' service ability and UEs' data rate requirements is adopted. The system load balancing issue is formulated as an integer lexicographical minimization problem whose calculation complexity is NP-hard...
Recently, the capacity region of the MIMO broadcast channel (BC) was completely characterized and duality between MIMO multiple access channel (MAC) and MIMO BC with perfect channel state information (CSI) at transmitter and receiver was established. In this work, we propose a MIMO BC approach in which only information about the channel norm is available at the base and hence no dirty paper precoding...
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