Resource Allocation and Outage Control for Solar-Powered WLAN Mesh Networks

Farbod, A.; Todd, T.D.

doi:10.1109/tmc.2007.1079

Cited by 53 publications

(37 citation statements)

References 19 publications

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“…WiFi based rural networks in particular have become widespread, especially in developing countries, due to the low cost and power requirements of WiFi chipsets. In climates where solar radiation is in abundance all year round, solar power has been used effectively to either supplement existing energy sources or serve as the primary energy source for rural wireless mesh networks [12,13]. In the Digital Gangetic Plains network in India, the technical feasibility of establishing long-distance WiFi links is explored [14], where batteries charged by photovoltaic (PV) modules are used as backup due to unreliable mains power access.…”

Section: Rural Communications and Broadband Accessmentioning

confidence: 99%

“…Due to the high cost of PV modules, wind turbines and batteries, a substantial amount of research has focused on sizing solar and wind sources and battery banks for given loads and conditions [11,12,31,32]. The battery bank in a "WindFi" system is sized to allow for continuous operation without any additional energy input for N d days and without the capacity dropping below the maximum discharge depth D% to prolong the battery lifespan.…”

Section: Power System Sizingmentioning

confidence: 99%

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HopScotch-a low-power renewable energy base station network for rural broadband access

McGuire

Brew²,

Darbari

et al. 2012

J Wireless Com Network

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The provision of adequate broadband access to communities in sparsely populated rural areas has in the past been severely restricted. In this article, we present a wireless broadband access testbed running in the Scottish Highlands and Islands which is based on a relay network of low-power base stations. Base stations are powered by a combination of renewable sources creating a low cost and scalable solution suitable for community ownership. The use of the 5 GHz bands allows the network to offer large data rates and the testing of ultra high frequency "white space" bands provides expansive coverage whilst reducing the number of base stations or required transmission power. We argue that the reliance on renewable power and the intelligent use of frequency bands makes this approach an economic green radio technology which can address the problem of rural broadband access.

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Section: Rural Communications and Broadband Accessmentioning

confidence: 99%

Section: Power System Sizingmentioning

confidence: 99%

HopScotch-a low-power renewable energy base station network for rural broadband access

McGuire

Brew²,

Darbari

et al. 2012

J Wireless Com Network

View full text Add to dashboard Cite

show abstract

“…Some power-aware algorithms have been proposed for solar-powered WMN [6][7][8]. Reducing the load on battery was proposed for giving battery recovery time [6] and [8]. An on/off controller was proposed theoretically for battery recovery [11].…”

Section: State Of Artmentioning

confidence: 99%

“…Battery powered WMN pose major challenges given the typical high power consumption of mesh nodes. Despite the attention energy efficient operation in WMN has received [6][7][8], there is no provision in the 802.11s standard for power saving mode operation. This led to the absence of mesh node hardware that operates in a power saving mode.…”

Section: Introductionmentioning

confidence: 99%

Energy Efficient Monitoring for Intrusion Detection in Battery-Powered Wireless Mesh Networks

Hassanzadeh

Stoleru

Shihada

2011

Ad-Hoc, Mobile, and Wireless Networks

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Abstract. Wireless Mesh Networks (WMN) are easy-to-deploy, low cost solutions for providing networking and internet services in environments with no network infrastructure, e.g., disaster areas and battlefields. Since electric power is not readily available in such environments batterypowered mesh routers, operating in an energy efficient manner, are required. To the best of our knowledge, the impact of energy efficient solutions, e.g., involving duty-cycling, on WMN intrusion detection systems, which require continuous monitoring, remains an open research problem. In this paper we propose that carefully chosen monitoring mesh nodes ensure continuous and complete detection coverage, while allowing non-monitoring mesh nodes to save energy through duty-cycling. We formulate the monitoring node selection problem as an optimization problem and propose distributed and centralized solutions for it, with different tradeoffs. Through extensive simulations and a proof-of-concept hardware/software implementation we demonstrate that our solutions extend the WMN lifetime by 8%, while ensuring, at the minimum, a 97% intrusion detection rate.

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“…In these types of systems, road-side unit (RSU) costs include that of both RSU installation, i.e., CAPEX (capital expenditure) costs, and long-term operating, i.e., OPEX (operating expenditure) costs. The latter costs include those associated with wired energy usage over long time periods (Farbod and Todd, 2007;Badawy et al, 2010). An RSU deployment that minimizes the sum of these cost components must jointly consider both the initial RSU placement and their associated long-term service costs (Nikookaran et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Combining Capital and Operating Expenditure Costs in Vehicular Roadside Unit Placement

Nikookaran

Karakostas

Todd

2017

IEEE Trans. Veh. Technol.

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Vehicular ad-hoc networks will be the next step towards intelligent transportation systems. Roadside infrastructure is a key component of these systems that will eventually support various applications such as road safety, transportation services, infotainment, and in-vehicle Internet access.This thesis considers the problem of roadside unit (RSU) placement and configuration in vehicular networks. The goal is to select the RSU locations and configurations such that the sum of capital and operational expenditure costs is minimized. Historical vehicular traffic traces and a set of RSU candidate locations are used as inputs.First, the problem is formulated as an integer linear program (ILP), which provides a lower bound on the total cost, and can be found for moderate size problems. A practical algorithm called Minimum Cost Route Clustering (MCRC) is then introduced that solves a relaxed version of the ILP and uses a novel rounding procedure to obtain real RSU placements. The algorithm takes into account the energy costs incurred by transmitting vehicular requests when the latter are scheduled using a minimum energy online scheduler. Performance results are presented that show that the proposed algorithm performs well compared to the case where placements are done without considering both capital and operational expenditure costs.iii The problem of capacity augmentation is then addressed, as a way of adjusting the initial RSU network design, and serves to counterbalance its failure to take causality into account. The objective is to find an RSU radio capacity assignment that minimizes the long-term operating expenditure costs subject to meeting packet deadline constraints, subject to a given packet loss rate target. A procedure, referred to as the Capacity Augmentation (CA) Algorithm, is proposed that iterates over the RSUs, selecting candidates for capacity augmentation based on their packet loss rate sensitivities. A variety of results is presented that characterize and compare the performance of the CA Algorithm using a greedy online packet scheduler. It is shown that the CA Algorithm is an efficient way to assign RSU radio capacity that achieves the desired performance objectives.

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Resource Allocation and Outage Control for Solar-Powered WLAN Mesh Networks

Cited by 53 publications

References 19 publications

HopScotch-a low-power renewable energy base station network for rural broadband access

HopScotch-a low-power renewable energy base station network for rural broadband access

Energy Efficient Monitoring for Intrusion Detection in Battery-Powered Wireless Mesh Networks

Combining Capital and Operating Expenditure Costs in Vehicular Roadside Unit Placement

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