Scenario making for assessment of secondary spectrum access

Hwang, Youngju; Kim, Seong-Lyun; Sung, Ki Won; Zander, Jens

doi:10.1109/mwc.2012.6272420

Cited by 11 publications

(15 citation statements)

References 5 publications

(5 reference statements)

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“…In fact, spectrum sharing in mobile cellular networks can be deployed in a flexible manner to serve a wide range of applications and services with various QoS requirements in shared frequency bands. Unlicensed sharing schemes, with opportunistic nature, facilitate the use of, e.g., licensed narrowband TVWSs, as well as licenseexempt bands (e.g., 5.8GHz) for application with rather lower QoS requirements, such as emerging MTC and IoT services [71]. In contrast, licensed sharing schemes provide additional licensed spectrum (e.g., for mobile use) to fulfil strict QoS (such as low latency, low loss rate and also guaranteed access) for services such as Mobile BroadBand (MBB).…”

Section: Unlicensed Primary Shared Accessmentioning

confidence: 99%

“…This can comprise the costs of additional infrastructure, probable required modifications of the existing systems to support and manage the sharing procedure [71], license fees and restriction of competition among MNOs in the market, etc. Thus, apart from the necessary technical analysis, business issues associated with spectrum sharing also have to be investigated.…”

Section: Deployment Requirements From Business Point Of Viewmentioning

confidence: 99%

“…Also, their radiation pattern varies in time and space. Besides, radar receivers are highly sensitive and consider the noise as the interference from the mobile cellular system [71]. In this regard, the exclusion zones are defined up to the tens of kilometres (to protect incumbent users), which involve a rather wide area and limit the effectiveness of LSA framework.…”

Section: ) Enhanced Lsa; Applying Rem Techniquesmentioning

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

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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Section: Unlicensed Primary Shared Accessmentioning

confidence: 99%

Section: Deployment Requirements From Business Point Of Viewmentioning

confidence: 99%

Section: ) Enhanced Lsa; Applying Rem Techniquesmentioning

confidence: 99%

See 1 more Smart Citation

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

Tehrani

Vahid

Triantafyllopoulou

et al. 2016

IEEE Commun. Surv. Tutorials

191

119

View full text Add to dashboard Cite

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“…In [31], the authors identified the key elements that constitute a comprehensive assessment scenario: a primary system and spectrum, a secondary system and usage, and the methods and context of spectrum sharing. These elements will be presented in this section.…”

Section: Secondary Access Scenariomentioning

confidence: 99%

On the sharing opportunities for ultra-dense networks in the radar bands

Obregon

Sung

Zander

2014

2014 IEEE International Symposium on Dynamic Spectrum Access Networks (DYSPAN)

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Abstract-Finding additional spectrum for indoor networks with very high capacity (ultra-dense networks, UDN) is a prime concern on the road to 5G wireless systems. Spectrum below or around 10 GHz has attractive propagation properties and previous work has indicated that vertical spectrum sharing between indoor users and outdoor wide-area services is feasible. In this paper, we focus on spectrum sharing between UDNs and radar systems. We propose and evaluate regulatory policies that improve sharing conditions/opportunities in areas with large demand (i.e. hot-spots and urban areas). We consider three regulatory policies: area power regulation, deployment location regulation and the combination of these. We address the scenario where secondary users can reliably exploit time and space domain sharing opportunities in the S-and Ku-Bands by means of geo-location databases and spectrum sensing. We evaluate these opportunities in terms of the required time-averaged separation distance between the radar system and the UDN that both protects the radar system as well as guarantees a minimum secondary transmission probability. Our results show that there are ample adjacent channel sharing opportunities for indoor usage in both the S-and Ku-Bands. In the Ku-Band, even outdoor hot-spot use is feasible with very relaxed restrictions. Co-channel usage in the S-band requires large separation distances that makes it practically unfeasible in cities with nearby radar sites. Overall, deployment location regulation seems to be the most effective means to limit interference to the radar system and improve sharing opportunities.

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“…Our quantitative assessment strategy is to analyze a number of scenarios where the technical availability of secondary spectrum is compared to the business demand [3]. In the technical part of the scenario definition, we have considered system characteristics and spectrum usage for both primary and secondary users.…”

Section: Scenarios For Secondary Spectrum Accessmentioning

confidence: 99%

On the scalability of cognitive radio: assessing the commercial viability of secondary spectrum access

Zander

Rasmussen

Sung

et al. 2013

IEEE Wireless Commun.

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We report results from the recently finished QUASAR project, which has studied overall system aspects of cognitive radio technologies and has paid attention particularly to the economic viability of different use cases. We find that successful secondary sharing goes far beyond the detection of spectrum holes. Large-scale commercial success requires that secondary systems are scalable so that a large number of users can be served in an economically viable fashion. Our key finding is that secondary spectrum use is not an attractive method for most of the commercially interesting scenarios, from neither a business nor technical perspective. Perhaps somewhat surprisingly, the likely commercial "sweet spot" for secondary sharing in the lower frequency bands is short-range indoor communications. We also find that regulation does not currently present a significant barrier in Europe or the United States.

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Scenario making for assessment of secondary spectrum access

Cited by 11 publications

References 5 publications

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

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

On the sharing opportunities for ultra-dense networks in the radar bands

On the scalability of cognitive radio: assessing the commercial viability of secondary spectrum access

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