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Resource Sharing of Underlaying Device-to-Device and Uplink Cellular Communications

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5 Author(s)
Jiaheng Wang ; National Mobile Communications Research Laboratory, Southeast University, Nanjing, China ; Daohua Zhu ; Chunming Zhao ; James C. F. Li
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The benefit of device-to-device (D2D) communication hinges on intelligent resource sharing between cellular and D2D users. This letter aims to optimize resource sharing for D2D communication to better utilize uplink resources in a multi-user cellular system with guaranteed quality of normal cellular communications. Despite the nonconvex difficulty, we provide an analytical characterization of the globally optimal resource sharing strategy, and furthermore propose two suboptimal strategies with less complexity. The superiority of the proposed resource sharing strategies is demonstrated through numerical examples.

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IEEE Communications Letters  (Volume:17 ,  Issue: 6 )