Autonomous Spectrum Sharing for Mixed LTE Femto and Macro Cells Deployments

Andrews, Matthew; Capdevielle, Véronique; Feki, Afef; Gupta, Piyush

doi:10.1109/infcomw.2010.5466611

Cited by 56 publications

(33 citation statements)

References 7 publications

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“…TDD has successfully been used with Wi-Fi to overcome hidden terminal problems [36], [37] and the some variants of the standard (such as IEEE 802.11e) have TDD-like access with support media intensive applications. TDD/TDMA is supported by the WiMAX, IEEE 802.22 and the 3GPP EUTRA /LTE standards, all of which have the facility to implement such cognitive capabilities as interference coordination and spectrum sharing in collaborative networks [38]. Much groundwork in this has been undertaken in the development LTE femtocells and self-organizing networks [39].…”

Section: B the Wi-fi Legacy And Path To Ism-advancedmentioning

confidence: 99%

ISM-Advanced: Improved access rules for unlicensed spectrum

Medeišis

Sydor

Cremene

et al. 2014

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

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Access to unlicensed spectrum has thus far been based on simplistic rules, such as a transmission power limitation, requirement for tolerance of interference, and a relaxed out-of-band transmission mask. Such rules originate from the rudimentary applications originally envisaged for such spectrum, which don't consider the current technical capabilities of radio devices. This paper introduces the concept of "ISMAdvanced", which incorporates Cognitive Radio capabilities into the rules for unlicensed spectrum access in ISM bands. It is argued and shown that the introduction of such capabilities can significantly improve the efficiency of spectrum usage, as well as the quality of service that is experienced by spectrum users. Moreover, constraints such as on transmission power can be relaxed under the proposed scheme, and the stability in performance of unlicensed spectrum can be improved. Among many other benefits, these characteristics facilitate use of unlicensed spectrum by quality-of-service-conscious telecommunication service entities such as cellular (LTE) operators, likely in aggregation with and supplementing their licensed spectrum.In view of the increased use and allocations being seen of unlicensed spectrum, it is suggested that the policies and technical rules that govern dynamic spectrum access in ISM bands be reviewed bringing them up to a level matching technical capabilities of modern radio equipment using Cognitive Radio technology.

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Section: B the Wi-fi Legacy And Path To Ism-advancedmentioning

confidence: 99%

ISM-Advanced: Improved access rules for unlicensed spectrum

Medeišis

Sydor

Cremene

et al. 2014

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

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“…In order to link the femtocells with the main core network, the mobile backhaul scheme uses the user's DSL or other Internet link. There are many advantages for the deployment of femtocells to both the user and the mobile network operator [29]. For the user, the use of a femto cell within the home enables far better coverage along with the possible provision of additional services.…”

Section: Mimo Femtocellsmentioning

confidence: 99%

Femtocells: Smart Approach Analysis to Macrocells

Seetharaman¹,

Vijayaragavan²

2012

IJCA

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Femtocells are intelligent cellular access points that support any mobile device using standard cellular air interfaces, such as UMTS, CDMA2000 and LTE. They contain cellular radios that are tightly integrated with the existing macrocell radio network and thus create a seamless experience for mobile users as they move in and out of femtocell coverage, whether on an active call or in standby. Femtocells learn their radio frequency (RF) surroundings and use this information to self-optimize their operation. In particular, femtocells use their RF awareness to control interference between themselves and between femtocells and macrocells. The surest way to increase the system capacity of a wireless link is by getting the transmitter and receiver closer to each other, which creates the dual benefits of higher quality links and more spatial reuse. In a network with nomadic users, this inevitably involves deploying more infrastructure, typically in the form of microcells, hotspots, distributed antennas, or relays In this paper contains the technical view for femtocells, and describe the state-of-the-art on each front. Also describe the technical challenges facing femtocell networks, and give some preliminary ideas for how to overcome them. KeywordsLTE-Advanced, 3GPP, Relay deployment, backhaul, amplify and forward relaying.

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“…1, is developed to investigate the performance of the AODSMA scheme including spatial diversity, opportunistic transmissions, distributed scheduling, and successive interference cancellation (SIC) [17] in PCP-OFDM systems. The proposed spectrum sharing scheme [8] among femtocells can improve spatial reuse gain in heterogeneous CRNs. In the link layer, cognitive networks have priority-based packet transmission [2,20] for spectrum access.…”

Section: Introductionmentioning

confidence: 99%

Cross-layer optimization with MIPv6-based multiple mobile routers for cognitive networks

2015

Wireless Netw

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To allow secondary and primary concurrent transmissions achieving the increment of optimal mobile network performance in heterogeneous cognitive networks, this paper proposes a cross-layer optimization framework with a distributed cooperative MIPv6-based multiple mobile routers using adaptive opportunistic route optimization entitled Mobile IPv6 Route Optimization for Cognitive radio networks (MIROC) protocol. A gripping slant of MIROC protocol is the benefit to develop mobile cognitive routers based on MIPv6. The proposed protocol is elaborated in details from angular RO and multiangular routing which can be utilized in practical network deployment. The performance in M/M/n and M/M/? Queue and evaluation of cognitive mobile Network with multiple mobile routers using stochastic process in Markov chain model are analyzed.

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Autonomous Spectrum Sharing for Mixed LTE Femto and Macro Cells Deployments

Cited by 56 publications

References 7 publications

ISM-Advanced: Improved access rules for unlicensed spectrum

ISM-Advanced: Improved access rules for unlicensed spectrum

Femtocells: Smart Approach Analysis to Macrocells

Cross-layer optimization with MIPv6-based multiple mobile routers for cognitive networks

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