In this paper, a joint subchannel and power allocation scheme is formulated which aims at maximizing the total capacity of downlink femto- cellular network and meanwhile satisfying the data rate requirement of each user. To solve the optimization problem, a cooperative distributed subchannel and power allocation scheme is utilized through cooperating between femto access points (FAPs) and macro base station (MBS). The proposed resource allocation scheme can significantly reduce the cross-tier interference while guarantee the quality of service (QoS) requirements of users. The simulation results show that compared with existing methods, the proposed scheme can improve the average signal to interference and noise ratio (SINR) of user equipments (UEs) and greatly decrease the outage probability of macrocell UEs (MUEs) at the expense of little system capacity.
Cooperative Distributed Resource Allocation for Downlink Femto-Cellular Networks
2017-09-01
187595 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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