用於電信營運商間的無線接取網路共享之策略防範資源分配機制

A Strategy-proof Resource Allocation Mechanism for RAN Sharing among Operators

陳廷華(Ting-Hua Chen)

指導教授 ： 魏宏宇

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2016年)

https://doi.org/10.6342/NTU201603234

摘要

電信營運商可以透過簽訂無線接取網路共享合約來減少資本支 出 (Capital Expenditure) 和營運成本 (Operational Expenditure) 上的開銷。 雖然共享的方針可能依據實際上分享資源的程度而有所不同,但電信 營運商們都將處在一個彼此互相合作卻又同時競爭的狀態。因此,共 享資源的分配結果需要能確保所有參與其中的電信營運商都能有所獲 益。此外,訂閱電信服務的訂閱者們也可能對於不同來源的無線電資 源有所偏好,然而這個偏好卻是不被他人所知的。當我們假設所有的 參與者 (包含所有的電信營運商以及服務訂閱者) 都會優先考慮自身的 利益,而且僅追求自身利益;那一旦服務訂閱者們被要求要揭露自己 的偏好時,他們將會以最大化自身利益為前提來回答問題,而且即使 角色換成了電信營運商們也是一樣的。所以,在這篇論文中,我們提 出了一個「策略防範的資源分配機制」來解決參與者用策略性的回報 資訊以增加自身利益的問題。透過這個分配機制,我們能確保所有的 資訊將會被正確、真實的收集起來,同時所有的參與者們 (包含電信營 運商們以及服務訂閱者們) 都會因有利可圖而積極主動的加入這個資源 分配機制。

關鍵字

機制設計 ； 賽局理論 ； 無線接取資源共享 ； VCG拍賣 ； 資源分配

並列摘要

Operators could alleviate their Capital Expenditure (CAPEX) and Opera- tional Expenditure (OPEX) by signing up RAN sharing contracts with other operators. Although the sharing scheme could be various according to the de- gree of the sharing, operators would cooperate and compete with each other at the same time. Therefore, the resource allocation results should always be guaranteed to be profitable for every operator. Besides that, the subscribers would also have their preference to the resources from different radio access network (RAN). However, the preference is kept by subscribers themselves. If all entities are assumed to be selfish, and tend to pursue the benefit for themselves, then once the subscribers are asked to reveal their preference, they sought to reply with the answer, which maximizes their utilities, and so do op- erators. Thus, a strategy-proof resource allocation mechanism is proposed in this thesis to tackle these issues. With this mechanism, the information could be truly gathered, and both operators and subscribers would be proactive to join this mechanism.

並列關鍵字

mechanism design ； game theory ； RAN sharing ； VCG auction ； resource allocation

參考文獻

[6] T. Frisanco, P. Tafertshofer, P. Lurin, and R. Ang, “Infrastructure sharing for mobile network operators; From a Deployment and Operators View,” 2008 the International Conference on Information Networking, pp. 1–5, 2008.

[8] 3GPP,“Serviceaspectsandrequirementsfornetworksharing,”TR22.951,3rd Generation Partnership Project (3GPP), Dec. 2015.

[10] M. Iwamura, “NGMN view on 5G architecture,” IEEE Vehicular Technology Conference, vol. 2015, 2015.

[11] A. Khan, W. Kellerer, K. Kozu, and M. Yabusaki, “Network sharing in the next mobile network: TCO reduction, management flexibility, and operational indepen- dence,” IEEE Communications Magazine, vol. 49, no. 10, pp. 134–142, 2011.

[12] R. Kokku, R. Mahindra, H. Zhang, and S. Rangarajan, “NVS: A substrate for vir- tualizing wireless resources in cellular networks,” IEEE/ACM Transactions on Net- working, vol. 20, no. 5, pp. 1333–1346, 2012.