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arXiv · 1810.05316

SCMA based resource management of D2D communications for maximum sum-revenue

Linglin Kong·Li Ling·Xu Zhang
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Abstract

The device-to-device (D2D) communication is one of the promising technologies of the future Internet of Things (IoT), but its security-related issues remain challenging. The block-chain is considered to be a secure and reliable distributed ledger, so we can treat the device user equipment (D-UE) request for the reusing resources of cellular user equipment (C-UE) as a transaction and put it into a transaction pool, then package the record into the block-chain. In this paper, we study the D2D communication resource allocation scheme based on sparse code multiple access (SCMA). Firstly, the system's interference model and block-chain-based transaction flow are analyzed. Then we propose the optimization problem so that C-UE can get the maximum revenue by sharing its resources to D-UE. This problem is NP-hard, so we propose a heuristic algorithm based on semi-definite relaxation (SDR) programming to solve it. Finally, the performance of the proposed algorithm is verified by simulation of different system parameters.

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Linglin Kong, Li Ling, Xu Zhang. 2019-04-10. SCMA based resource management of D2D communications for maximum sum-revenue. https://doi.org/10.1109/wocc.2019.8770640

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