Abstract
Dynamic frequency management is considered to be beneficial for the uncoordinated self-deployment of Home eNB (HeNB) in LTE-A heterogeneous networks. In this paper, a new autonomous component carrier (CC) selection scheme is proposed that dynamically selects the CC with efficient inter-cell signaling design. The CC selection criterion is to minimize the interference contribution composed of the incoming and outgoing interference. Additionally, power control and weighted proportional fair (PF) scheduling are used to further improve the cell-edge performance. The proposed inter-cell signaling between HeNBs is independent of CC number, user number and CC allocation results in HeNB network, thus the inter-cell signaling overhead can be greatly reduced. Simulation results show that the proposed CC selection scheme can autonomously achieve high cell-average and cell-edge throughput. This distributed and adaptive scheme performed locally at each HeNB is suitable for the uncoordinated HeNB deployment without centralized control unit.
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