On the energy requirements of vertical handover operations: Measurement-based results for the IEEE 802.21 framework

Wassie, Dereje Assefa; Loukatos, Dimitrios; Sarakis, Lambros; Kontovasilis, Kimon; Skianis, Charalabos

doi:10.1109/camad.2012.6335316

Cited by 8 publications

(7 citation statements)

References 9 publications

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“…Among the actions just outlined there have been studies, e.g. [11], showing that the scanning operation can be very costly in terms of energy, even by an order of magnitude or more. Moreover, consulting the information service is an action that can incur latency to the whole vertical handover process, since such a service could be located in a server multiple hops away.…”

Section: Media Independent Handover Operations and Associated Botmentioning

confidence: 99%

Exploiting short-range cooperation for energy efficient vertical handover operations

Foukas

Kontovasilis

Marina

2015

2015 11th International Conference on Network and Service Management (CNSM)

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The availability of multiple collocated wireless networks using heterogeneous technologies and the multi-access support of contemporary mobile devices have allowed wireless connectivity optimization, enabled through vertical handover (VHO) operations. However, this comes at a high energy consumption on the mobile device, due to the inherently expensive nature of some of the involved operations. This work proposes exploiting short-range cooperation among collocated mobile devices to improve the energy efficiency of vertical handover operations. The proactive exchange of handover-related information through lowenergy short-range communication technologies, like Bluetooth, can help in eliminating expensive signaling steps when the need for a VHO arises. A model is developed for capturing the mean energy expenditure of such an optimized VHO scheme in terms of relevant factors by means of closed-form expressions. This model is validated through simulations and results demonstrate that the proposed scheme has superior performance in several realistic usage scenarios considering important relevant factors, including network availability, the local density of mobile devices and the range of the cooperation technology.

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Section: Media Independent Handover Operations and Associated Botmentioning

confidence: 99%

Exploiting short-range cooperation for energy efficient vertical handover operations

Foukas

Kontovasilis

Marina

2015

2015 11th International Conference on Network and Service Management (CNSM)

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“…This observation, together with the fact that when the number of candidate networks is not too small (1 − ) ≪ 1, leads to a simplification of the exact form (11), expressed by the approximation…”

Section: Short-range Cooperation-assisted Schemementioning

confidence: 99%

“…If both of these operations are successful, the network can be chosen as a target for handover. Among the actions just outlined, there have been studies, for example, [11], showing that the scanning operation can be very costly in terms of energy even by an order of magnitude or more. Moreover, consulting the information service is an action that can incur latency to the whole vertical handover process, since such a service could be located in a server multiple hops away.…”

Section: Media-independent Handover Operations and Associated Bottlenmentioning

confidence: 99%

“…Short-range communications between neighboring devices were confined within a range of = 15 m. The duration of a beacon and the interval between two fully active beacons were set equal to BI = 3.2 s and = 12, respectively. The duration of the advertisement window (AW) within a beacon was set to 10% of BI, that is, 0.32 s. The costs of individual VHO-related operations were set based on the measurements in [11] ( Q = 0.02 J, SCAN = 8.6 J, and IS = 0.02 J), while the power consumption for transmission and reception through the short-range technology was set based on the Bluetooth measurements in [18] ( AW = 0.08 J and LW = 0.07 J, resp.). It was also assumed that, during the idle period, the short-range interface is disabled; thus IDLE = 0.…”

Section: Model Validation Via Simulationmentioning

confidence: 99%

“…Regarding the modeling aspect of this paper, this is the first attempt at a comprehensive modeling of the energy costs associated with vertical handover mechanisms. The only other work bearing some relevance is [11], which investigates the energy requirements associated with the execution of VHOs. However, [11] addresses only conventional handover frameworks and proceeds on the basis of direct measurements on a prototype heterogeneous network testbed.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Short‐Range Cooperation of Mobile Devices for Energy‐Efficient Vertical Handovers

Foukas

Kontovasilis

Marina

2018

Wireless Communications and Mobile Computing

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The availability of multiple collocated wireless networks using heterogeneous technologies and the multiaccess support of contemporary mobile devices have allowed wireless connectivity optimization, enabled through vertical handover (VHO) operations. However, this comes at high energy consumption on the mobile device due to the inherently expensive nature of some of the involved operations. This work proposes exploiting short-range cooperation among collocated mobile devices to improve the energy efficiency of vertical handover operations. The proactive exchange of handover-related information through low-energy short-range communication technologies, like Bluetooth, can help in eliminating expensive signaling steps when the need for a VHO arises. A model is developed for capturing the mean energy expenditure of such an optimized VHO scheme in terms of relevant factors by means of closed-form expressions. The descriptive power of the model is demonstrated by investigating various typical usage scenarios and is validated through simulations. It is shown that the proposed scheme has superior performance in several realistic usage scenarios considering important relevant factors, including network availability, the local density of mobile devices, and the range of the cooperation technology. Finally, the paper explores cost/benefit trade-offs associated with the shortrange cooperation protocol. It is demonstrated that the protocol may be parametrized so that the trade-off becomes nearly optimized and the cost is maintained affordable for a wide range of operational scenarios.

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Multi-Modal Sensor Nodes in Experimental Scalable Agricultural IoT Application Scenarios

Loukatos

Arvanitis

2021

Lecture Notes on Data Engineering and Communications Technologies

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On the energy requirements of vertical handover operations: Measurement-based results for the IEEE 802.21 framework

Cited by 8 publications

References 9 publications

Exploiting short-range cooperation for energy efficient vertical handover operations

Exploiting short-range cooperation for energy efficient vertical handover operations

Short‐Range Cooperation of Mobile Devices for Energy‐Efficient Vertical Handovers

Multi-Modal Sensor Nodes in Experimental Scalable Agricultural IoT Application Scenarios

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