Performance Gains of Spectrum Sharing in Multi-Operator LTE-Advanced Systems

Alsohaily, Ahmed; Sousa, E.S.

doi:10.1109/vtcfall.2013.6692356

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…There has been significant work related to cognitive radios to help fill the gaps in the underutilized spectrum by letting secondary users make use of the spectrum band via sensing based access control [13]- [17] for CCF. In [18]- [21], various aspects and performance of spectrum sharing were studied in a cellular setting. Most related to this paper, in [20], dynamic spectrum sharing between different operators was shown to achieve reasonable sensing performance in 3GPP LTE-A systems with carrier aggregation.…”

Section: A Background and Related Workmentioning

confidence: 99%

On the Feasibility of Sharing Spectrum Licenses in mmWave Cellular Systems

Gupta

Andrews

Heath

2016

IEEE Trans. Commun.

115

148

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The highly directional and adaptive antennas used in mmWave communication open up the possibility of uncoordinated sharing of spectrum licenses between commercial cellular operators. There are several advantages to sharing including a reduction in license costs and an increase in spectrum utilization. In this paper, we establish the theoretical feasibility of spectrum license sharing among mmWave cellular operators. We consider a heterogeneous multi-operator system containing multiple independent cellular networks, each owned by an operator. We then compute the SINR and rate distribution for downlink mobile users of each network. Using the analysis, we compare systems with fully shared licenses and exclusive licenses for different access rules and explore the trade-offs between system performance and spectrum cost. We show that sharing spectrum licenses increases the per-user rate when antennas have narrow beams and is also favored when there is a low density of users. We also consider a multi-operator system where BSs of all the networks are co-located to show that the simultaneous sharing of spectrum and infrastructure is also feasible. We show that all networks can share licenses with less bandwidth and still achieve the same per-user median rate as if they each had an exclusive license to spectrum with more bandwidth.

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Section: A Background and Related Workmentioning

confidence: 99%

On the Feasibility of Sharing Spectrum Licenses in mmWave Cellular Systems

Gupta

Andrews

Heath

2016

IEEE Trans. Commun.

115

148

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“…In this respect, the question that comes up is on which are of the sharing parties is responsible for the upcoming costs of administration and management of the sharing procedure [54]. In the case of homogeneous sharing scenarios (e.g., inter-operator sharing), the concept of infrastructure sharing as a complementary scheme is currently supported in 3GPP specifications [100] and is expected to result in considerable cost-savings. Moreover, the real deployment of spectrum sharing may require across countries and continents to avoid cross -border interference [101].…”

Section: Deployment Requirements From Business Point Of Viewmentioning

confidence: 99%

“…In such schemes, mainly asymmetric traffic fluctuations among MNOs are taken into account to determine the amount and time duration of idle spectrum for the purpose of sharing. Apart from the spectrum, due to the heterogeneity of the sharing parties, there is an opportunity of network sharing among MNOs with limited support in the 3GPP specifications (LTE/LTE-A) [104], where network resources (infrastructure) such as Core Network (CN) node, and RAN can be shared along with spectrum [100]. Network sharing between operators is a well-recognised form of network-related cost optimisations, as it allows a significant Capital Expenditures (CAPEX) and some Operational Expenditure (OPEX) reductions particularly in low traffic areas as depicted in Fig.…”

Section: A Overview Of Inter-operator Spectrum Sharingmentioning

confidence: 99%

Licensed Spectrum Sharing Schemes for Mobile Operators: A Survey and Outlook

Tehrani

Vahid

Triantafyllopoulou

et al. 2016

IEEE Commun. Surv. Tutorials

191

119

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The ongoing development of mobile communication networks to support a wide range of superfast broadband services has led to massive capacity demand. This problem is expected to be a significant concern during the deployment of the 5G wireless networks. The demand for additional spectrum to accommodate mobile services supporting higher data rates and having lower latency requirements, as well as the need to provide ubiquitous connectivity with the advent of the Internet of Things (IoT) sector, is likely to considerably exceed the supply, based on the current policy of exclusive spectrum allocation to mobile cellular systems. Hence, the imminent spectrum shortage has introduced a new impetus to identify practical solutions to make the most efficient use of the scarce licensed bands in a shared manner. Recently, the concept of dynamic spectrum sharing has received considerable attention from regulatory bodies and governments globally, as it could potentially open new opportunities for mobile operators to exploit spectrum bands whenever they are underutilised by their owners, subject to service level agreements. Although various sharing paradigms have been proposed and discussed, the impact and performance gains of different schemes can be scenario-specific and vary depending on the nature of the sharing parties, the level of sharing and spectrum access scheme. In this survey, we describe the main concepts of dynamic spectrum sharing, different sharing scenarios, as well as the major challenges associated with sharing licensed bands. Finally, we conclude this survey paper with open research challenges and suggest some future research directions

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“…Indeed, current 3 rd Generation Partnership Project (3GPP) standards fully support network sharing between operators under different sharing schemes. With the latest advancements introduced in LTE-Advanced systems [5], spectrum sharing is feasible efficiently. Furthermore, new mobile architecture arises in order to help operator upgrading their networks, and enable network sharing in a Cloud Radio Access Network (C-RAN).…”

Section: Introductionmentioning

confidence: 99%

Access selection and joint pricing in multi-operator wireless networks: A Stackelberg game

Farhat

Chahine

Samhat

et al. 2015

2015 Fifth International Conference on Digital Information and Communication Technology and Its Applications (DICTAP)

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We investigate in this paper the access selection and joint pricing problem in multi-operator wireless networks. The problem is formulated as a Stackelberg game, where cooperating service operators first set the service price to maximize their revenue. Then, the home operator of the mobile user performs the access selection process among the service operators, in order to maximize its own profits and its client satisfaction, in terms of perceived QoS. Competing operators decide the service price following a number of defined pricing schemes, and the home operator uses a hybrid utility function for the selection decision. We consider the Nash equilibrium as a solution of the service price setting game, where the best response is presented in function of the adopted pricing scheme. Simulation results show the efficiency of this multi-leader follower game for the access selection in a multi-operator environment, and illustrate how operators' cooperation enhances network performance and improves operators' revenue.

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Performance Gains of Spectrum Sharing in Multi-Operator LTE-Advanced Systems

Cited by 7 publications

References 14 publications

On the Feasibility of Sharing Spectrum Licenses in mmWave Cellular Systems

On the Feasibility of Sharing Spectrum Licenses in mmWave Cellular Systems

Licensed Spectrum Sharing Schemes for Mobile Operators: A Survey and Outlook

Access selection and joint pricing in multi-operator wireless networks: A Stackelberg game

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