This paper proposes a novel Gain-Aware Uplink-Downlink(GAUD) jointly resource allocation scheme to maximize the Device-to-Device(D2D) throughput while guaranteeing Quality of Service (QoS) of cellular users. We formulate the global optimization problem as a mixed integer nonlinear programming problem and decompose it into three sub-problems. Firstly, a method of jointly uplink and downlink reuse mode selection is proposed. Based on the throughout gain, each D2D pair is appropriately assigned by either downlink or uplink frequency resource to reuse. Then a heuristic scheduling is designed for fairness channel allocation in order to form D2D users as much as possible. At last, the Lagrangian dual algorithm is developed to solve the optimal power allocation. The simulation results show that our proposed jointly downlink-uplink resource reusing scheme can make the system throughput increased by about 35% and 50% higher than the scheme based on Only Downlink and Only Uplink resource reusing.


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    Title :

    Gain-Aware Joint Uplink-Downlink Resource Allocation for Device-to-Device Communications


    Contributors:
    Zhao, Pan (author) / Yu, Peng (author) / Feng, Lei (author) / Li, Wenjing (author) / Qiu, Xuesong (author)


    Publication date :

    2017-06-01


    Size :

    463296 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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