Spectrum sharing and cognitive radio

Harrold, TJ; Wang, L.F.; Beach, M.A.; Salami, Gbenga; Yarmohammad, A.; Holland, Oliver

doi:10.1109/icumt.2009.5345335

Cited by 5 publications

(4 citation statements)

References 11 publications

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“…The comprehensive comparison of the results of above mentioned approaches is provided in [117] and [119]. The authors conclude that the gain is achieved through such schemes highly depends on the degree of the traffic load correlation among MNOs (i.e., the symmetry of load).…”

Section: A Inter-operator/national Roamingmentioning

confidence: 99%

“…user throughput outside of the exclusion zone (where incumbent users do not exist), and 10% improvement in average user throughput within the exclusion zones, with power reduction and downtilt "RED Technologies" [158], "ADEL" [148] Radio Environment mapping M ore dynamic and accurate spectrum opportunity detection Project ongoing are not utilised by the actual license holder, on the condition that coordination between sharing parties is performed properly in order to avoid interference. However, due to the user diversity and traffic correlation among operators, it is not always possible to achieve constant capacity gains [117], [126], [127], [164].…”

Section: Lessons Learned and Further Workmentioning

confidence: 99%

“…In [114], [116], [117], and [118], inter-operator roaming is implemented. In this regard, inter-operator roaming is carried out subject to the spatial-temporal spectrum usage/availability of the participating MNOs (with exclusive and non-collocated RAN deployment) in spectrum sharing, given that they always prioritise their own users to serve (primary-secondary hierarchy).…”

Section: A Inter-operator/national Roamingmentioning

confidence: 99%

“…Inter-operator/National Roaming (V-C-1-a) [114], [116][117][118], [120][121][122][123] Multi-operator Virtual RAN, and Spectrum Sharing (V-C-1-b) [107], [125] Spectrum Sharing between Operators and Incumbent (Heterogeneous sharing players) (sec.VI)…”

Section: ) Sub-urban/urban Not-spot Coverage Enhancementmentioning

confidence: 99%

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

Tehrani

Vahid

Triantafyllopoulou

et al. 2016

IEEE Commun. Surv. Tutorials

187

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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Section: A Inter-operator/national Roamingmentioning

confidence: 99%