Energy savings for cellular access network through Wi-Fi offloading

Aijaz, Adnan; Holland, Oliver; Pangalos, Paul; Aghvami, Hamid

doi:10.1109/icc.2012.6363815

Cited by 19 publications

(7 citation statements)

References 4 publications

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“…In tight coupling architecture, there has to be a cooperation between the two networks through a common core and there will be a central administration for the majority of network functions, such as billing, resource management and vertical handover. This is provided through I-WLAN standard from 3GPP, which allows transferring data through Wi-Fi between users' devices and cellular systems [2,4,6].…”

Section: Wi-fi Offloading Integration Levelsmentioning

confidence: 99%

“…Network access selection or offloading decisions, are made based on different parameters with different objectives as well, such as boosting the capacity or user QoS [2,6,9]. Different algorithms have been tackled this in research; the first one is Wi-Fi if coverage, which considers the SNR value to trigger the offloading decision to Wi-Fi [1].…”

Section: Effective Wi-fi Offloading Algorithmsmentioning

confidence: 99%

“…, m (4) Noise Noise power in a receiver usually is a thermal noise generated from the amplifier, and it is unwanted energy from natural and man-made sources. It is calculated as follows: (6) From equation 6, N is the noise in linear scale; K is Boltzmann's constant, which is equal to 1.381 × 10-23 , T is the reference receiver temperature in Kelvin, equals to 290; and B is the noise bandwidth in hertz. According to equation (6) the noise value in LTE differs from Wi-Fi depending on the bandwidth allocated to the user in each.…”

Section: (3) Link Budgetmentioning

confidence: 99%

See 2 more Smart Citations

Performance Evaluation for Wi-Fi Offloading Schemes in LTE Networks

Alruhaili¹,

Aldabbagh²,

Bouabdallah³

et al. 2016

IJCIS

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The exponential data traffic growth cannot be satisfied anymore with traditional ways by building new Base Stations (BS) or leasing new spectrum bands, which is costly from the operator's point of view. In order to accommodate with this high data proliferation, the Third Generation Partner Ship Project (3GPP) has introduced Long Term Evolution (LTE). An LTE network can handle more traffic with reduced cost and complexity, by adding new spectrum and wider bands. Researchers are more interested in coping with increased capacity by involving a heterogeneous network along with LTE as a better solution. The focus of this research is to discuss a specific variation of heterogeneous networks, which is Multi Radio Access Technology (RAT), as multiple

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Section: Wi-fi Offloading Integration Levelsmentioning

confidence: 99%

Section: Effective Wi-fi Offloading Algorithmsmentioning

confidence: 99%

Section: (3) Link Budgetmentioning

confidence: 99%

See 1 more Smart Citation

Performance Evaluation for Wi-Fi Offloading Schemes in LTE Networks

Alruhaili¹,

Aldabbagh²,

Bouabdallah³

et al. 2016

IJCIS

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“…The authors in [8] explore an approach for operators to dynamically offload traffic to Wi-Fi networks by using tightly coupled cellular/Wi-Fi systems, such as deploying three Wi-Fi Access Points within the coverage of a single 3G cell. Their simulation results showed power saving up to 65 % for cellular networks.…”

Section: Introductionmentioning

confidence: 99%

3G to Wi-Fi offloading on Android

Bakhit

Chalouhi

Francis

et al. 2014

2014 IEEE/ACS 11th International Conference on Computer Systems and Applications (AICCSA)

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In this paper, we propose a 3G to Wi-Fi offloading Android-based application. Due to growing demand for a highspeed mobile data connection around the clock, 3G networks begin to face high congestion levels rendering the mobile service providers unable to meet customer expectations. Despite the existence of various solutions, offloading to Wi-Fi proves to be an optimal one as it takes advantage of the resources that Wi-Fi offers in terms of availability and bandwidth. The proposed application measures the download speed of an online page on both Wi-Fi and 3G networks simultaneously. After comparing the results, the device gets switched to the best network. This enables operators to manage their networks more adequately and to improve users experience.

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“…They show that the last two schemes outperform the others in terms of offloaded data traffic volume and number of traffic flows for different network cases. Authors in [21] explore the benefits in terms of energy savings that can be achieved by offloading traffic loads to Wi-Fi networks. Using different traffic types, they show that a saving of up to 70% is reached by opportunistically powering down cellular radio network equipment to offload users traffic to Wi-Fi hotspots.…”

Section: Vertical Data Offloadingmentioning

confidence: 99%

Mobile data traffic offloading over Passpoint hotspots

et al. 2015

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Wi-Fi technology has always been an attractive solution for catering the increasing data demand in mobile networks because of the availability of WiFi networks, the high bit rates they provide, and the lower cost of ownership. However, the legacy WiFi technology lacks of seamless interworking between Wi-Fi and mobile cellular networks on the one hand, and between Wi-Fi hotspots on the other hand. Nowadays, the recently released Wi-Fi Certified Passpoint Program provides the necessary control-plane for these operations. Service providers can henceforth look to such Wi-Fi systems as a viable way to seamlessly offload mobile traffic and deliver added-value services, so that subscribers no longer face the frustration and aggravation of connecting to Wi-Fi hotspots. However, the technology being rather recent, we are not aware of public studies at the state of the art documenting the achievable gain in real mobile networks. In this paper, we evaluate the capacity and energy saving gain that one can get by offloading cellular data traffic over Passpoint hotspots as a function of different hotspot placement schemes and of access point selection policies (two enabled by the Passpoint control-plane and one independent of it). We compare the policies using real mobile data from the Orange network in Paris. We show that offloading using Passpoint control-plane information can grant up to 15% capacity gain and 13% energy saving gain with respect to Passpoint-agnostic ones based on signal quality information. As of placement strategy, installing Passpoint hotspots in the outer annulus of the macrocell coverage grants the maximum capacity gain.

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Energy savings for cellular access network through Wi-Fi offloading

Cited by 19 publications

References 4 publications

Performance Evaluation for Wi-Fi Offloading Schemes in LTE Networks

Performance Evaluation for Wi-Fi Offloading Schemes in LTE Networks

3G to Wi-Fi offloading on Android

Mobile data traffic offloading over Passpoint hotspots

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