Relaying in CDMA networks: pathloss reduction and transmit power savings

Herhold, P.; Rave, Wolfgang; Fettweis, Gerhard

doi:10.1109/vetecs.2003.1207185

Cited by 24 publications

(11 citation statements)

References 8 publications

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“…On the way to green cellular networking, operators have also defined other green strategies that involve: (i) selection of strategic places for deploying their network and their BSs [11], (ii) the upgrade to eco-friendly hardware, and (iii) the adoption of renewable power sources.…”

Section: Power Saving Strategies and Related Workmentioning

confidence: 99%

On the minimization of power consumption in base stations using on/off power amplifiers

Chatzipapas

Alouf

Mancuso

2011

2011 IEEE Online Conference on Green Communications

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Abstract-Using energy generated with fossil fuel causes global warming due to the greenhouse effect, which threatens our environment. One of the challenges for New Generation Networks (NGN) is then the reduction of energy consumption, in particular at the BSs (Base Stations) which use about 85% of the total network energy. We contribute to the research with a mathematical model that calculates the total power consumption of a BS and enlightens the way to minimize it. First, we analyze the power consumed at every different component of the BS. Second, based on the cost incurred in turning off the BS's power amplifiers, we show how to decide whether it is convenient to keep the BS idle during those intervals in which no traffic has to be sent, or to turn off the amplifiers. Our model is evaluated by means of numerical examples, and shows that interesting power gain can be obtained under a large spectrum of load conditions.

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Section: Power Saving Strategies and Related Workmentioning

confidence: 99%

On the minimization of power consumption in base stations using on/off power amplifiers

Chatzipapas

Alouf

Mancuso

2011

2011 IEEE Online Conference on Green Communications

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“…Relay and repeater nodes are often promoted for infrastructure cost saving reasons, since expensive backhaul links are avoided. Another potential advantage is energy saving, since the propagation distance per hop (and thereby transmission power) is decreased [19]. These and other potential energy efficiency saving features [20] of relays and repeaters will be further explored within the EARTH project.…”

Section: Energy Efficient Network Deploymentmentioning

confidence: 99%

Enablers for Energy Efficient Wireless Networks

Auer

Gódor

Hévizi

et al. 2010

2010 IEEE 72nd Vehicular Technology Conference - Fall

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Abstract-Mobile communications are increasingly contributing to global energy consumption. The EARTH (Energy Aware Radio and neTworking tecHnologies) project tackles the important issue of reducing CO2 emissions by enhancing the energy efficiency of cellular mobile networks. EARTH is a holistic approach to develop a new generation of energy efficient products, components, deployment strategies and energy-aware network management solutions. In this paper the holistic EARTH approach to energy efficient mobile communication systems is introduced. Performance metrics are studied to assess the theoretical bounds of energy efficiency as well as the practical achievable limits. A vast potential for energy savings lies in the operation of radio base stations. In particular, base stations consume a considerable amount of the available power budget even when operating at low load. Energy efficient radio resource management (RRM) strategies need to take into account slowly changing daily load patterns, as well as highly dynamic traffic fluctuations. Moreover, various deployment strategies are examined focusing on their potential to reduce energy consumption, whilst providing uncompromised coverage and user experience. This includes heterogeneous networks with a sophisticated mix of different cell sizes, which may be further enhanced by energy efficient relaying and base station cooperation technologies. Finally, scenarios leveraging the capability of advanced terminals to operate on multiple radio access technologies (RAT) are discussed with respect to their energy savings potential.

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“…Also, transmitting over longer distances consumes considerably more energy as the output transmit power increases more than linearly with the transmission distance. Even worst, it has been shown in [19] that for CDMA (Code Division Multiple Access) cellular networks, the transmit power in the uplink channel increases more than linearly with the network load. Furthermore, in [20] the authors quantified the variability that exists in the communication energy consumption from accessing different RATs, pointing out the high energy efficiency gains of accessing wireless local area (WLAN) networks instead of macrocell sites.…”

Section: Possible Use Casesmentioning

confidence: 99%

Look-Ahead Strategies Based on Store-Carry and Forward Relaying for Energy Efficient Cellular Communications

2010

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With the increasing availability of Internet type services on mobile devices and the attractive flat rate all-you-can-eat billing system, cellular telecommunication networks are experiencing a tremendous growth in data usage demand. However, there are increasing concerns that current network deployment trends (including more efficient radio access techniques and increased spectrum allocation strategies), will be unable to support the increased Internet traffic in a sustainable way. The delay tolerant nature of mobile Internet traffic allows for a large degree of flexibility in optimizing network performance to meet different design objectives and it's a feature that has mostly gone unexplored by the research community. In this paper, we introduce a novel message forwarding mechanism in cellular networks that benefits from the inherent delay tolerance of Internet type services to provide flexible and adjustable forwarding strategies for efficient network operation while guaranteeing timely deliveries. By capitalizing on the elasticity of message delivery deadlines and the actual mobility of nodes inside the cell, considerable performance gains can be achieved by physically propagating information messages within the network.

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Relaying in CDMA networks: pathloss reduction and transmit power savings

Cited by 24 publications

References 8 publications

On the minimization of power consumption in base stations using on/off power amplifiers

On the minimization of power consumption in base stations using on/off power amplifiers

Enablers for Energy Efficient Wireless Networks

Look-Ahead Strategies Based on Store-Carry and Forward Relaying for Energy Efficient Cellular Communications

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