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Inter-operator infrastructure sharing : trade-offs and market

Sanguanpuak, Tachporn; Guruacharya, Sudarshan; Hossain, Ekram; Latva-aho, Matti (2017-07-03)

 
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https://doi.org/10.1109/ICCW.2017.7962636

Sanguanpuak, Tachporn
Guruacharya, Sudarshan
Hossain, Ekram
Latva-aho, Matti
Institute of Electrical and Electronics Engineers
03.07.2017

T. Sanguanpuak, S. Guruacharya, E. Hossain and M. Latva-aho, "Inter-operator infrastructure sharing: Trade-offs and market," 2017 IEEE International Conference on Communications Workshops (ICC Workshops), Paris, 2017, pp. 73-78. doi: 10.1109/ICCW.2017.7962636

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doi:https://doi.org/10.1109/ICCW.2017.7962636
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Abstract

We model the problem of infrastructure sharing among mobile network operators (MNOs) as a multiple-seller single-buyer market where the MNOs are able to share their own base stations (BSs) with each other. First, we use techniques from stochastic geometry to find the coverage probability of the infrastructure sharing system and analyze the trade-off between increasing the transmit power of a BS and the BS intensity of a buyer MNO required to achieve a given quality-of-service (QoS) in terms of the coverage probability. We show that when the transmit power of the BSs and/or the BS intensity of a network increases, the system becomes interference limited and the coverage probability tends to saturate at a certain value. As such, when the required QoS is set above this bound, an MNO can improve its coverage by buying infrastructure from other MNOs. Subsequently, we analyze the strategy of a buyer MNO on choosing how many MNOs and which MNOs to buy the infrastructure from. The optimal strategy of the buyer is given by greedy fractional knapsack algorithm. On the sellers’ side, the pricing problem and the problem of determining the fraction of infrastructure to be sold are formulated using a Cournot oligopoly game.

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