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Resource allocation for V2X communications: A local search based 3D matching approach

Qing Wei ; Sun Wanlu (Institutionen för signaler och system, Kommunikationssystem) ; Bo Bai ; Li Wang ; Erik G. Ström (Institutionen för signaler och system, Kommunikationssystem) ; Mei Song
2017 IEEE International Conference on Communications, ICC 2017, Paris, France, 21-25 May 2017 (1550-3607). (2017)
[Konferensbidrag, refereegranskat]

Vehicle-to-everything (V2X) communications, en- abled by cellular device-to-device (D2D) links, have recently drawn much attention due to its potential to improve traffic safety, efficiency, and comfort. In this context, however, intracell interference combined with demanding latency and reliability requirements of safety vehicular users (V-UEs) are challenging issues. In this paper, we study a resource allocation problem among safety V-UEs, non-safety V-UEs, and conventional cellular UEs (C-UEs). Firstly, the resource allocation problem is formulated as a three-dimensional matching problem, where the objective is to maximize the total throughput of non-safety V-UEs on condition of satisfying the requirements on C-UEs and on safety V-UEs. Due to its NP-hardness, we then exploit hypergraph theory and propose a local search based approximation algorithm to solve it. Through simulation results, we show that the proposed algorithm outperforms the existing scheme in terms of both throughput performance and computational complexity.

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Denna post skapades 2017-06-23. Senast ändrad 2017-09-12.
CPL Pubid: 250080


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