On femto deployment architectures and macrocell offloading benefits in joint macro-femto deployments

Calin, Doru; Claußen, Holger; Uzunalioğlu, Hüseyin

doi:10.1109/mcom.2010.5394026

Cited by 165 publications

(94 citation statements)

References 10 publications

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“…The studies [18,19] consider a heterogeneous architecture for network planning. Combining macro-cells with microcells and pico-cells, a theoretical relationship between energy efficiency and network deployment is derived and evaluated.…”

Section: Related Workmentioning

confidence: 99%

A dynamic energy-saving strategy for green cellular railway communication network

Huang

Zhang

Huo³

2015

J Wireless Com Network

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Energy saving is seldom contemplated in cellular railway communication network because safety is always the main focus. However, we analyzed train schedules and determined that the cellular railway network had considerable potential for energy saving. We designed a simple train detection strategy using the handover procedure to initiate power saving. We also proposed a flexible and effective solution based on the mealy-type finite state machine to transit the cell state between an energy-saving mode and a full running mode. The key design principle of the proposed solution consists in forming an orthogonal group and cluster, based on network deployment and train schedules, to simplify the state transition. Our evaluations using a real network deployment led to a significant energy saving of up to 33% with different power-saving strategies and factors.

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Section: Related Workmentioning

confidence: 99%

A dynamic energy-saving strategy for green cellular railway communication network

Huang

Zhang

Huo³

2015

J Wireless Com Network

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“…Femtocell are low powered, low cost, user deployed, self organizing base station that helps the users of macrocellular network to achieve high QoS at the indoor environment and cell edge. It also helps the macrocellular network to achieve spatial frequency reuse gain (Son, 2011) and traffic off-loading in high traffic scenario (Roh, 2011;Calin, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Many interference mitigation techniques have been reported in the literature. The interference generated by the fBS can not be handled by the macrocell network operator by means of centralized network planning (Boudreau, 1999;Calin, 2010;Galindo, 2010). Thus the interference management in femtocells underlay in macrocellular networks is distributed.…”

Section: Introductionmentioning

confidence: 99%

Interference Mitigation for OFDM-Based Joint Macro-Femto Cellular Networks

Smriti¹,

Kaiser²,

Ahmed³

2012

NCT

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Femtocells underlay in macro-cellular network is becoming more popular in order to use spatial frequency reuse gain, extend the coverage and capacity. But interference mitigation is the main challenge for the system designer. Instead of using centralized coordination among base stations to mitigate or reduce interference caused by femtocells to macrocells, this paper investigates the dynamic distributed interference management in femtocells underlay in a macrocell network. The distributed adaptive fractional frequency reuse (FFR) with power control is considered in the proposed approach. Simulation results show that the proposed interference management technique effectively reduces the downlink interference and increases the capacity and improves the outage probability of the macro-cellular network.

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“…For example, controlling the idle or sleep mode of femtocells can improve energy efficiency of femtocell BSs [9]. Femtocells deployment can also save the macrocell network radio resources by macro-offloading control, thereby achieving offloading gain [10]. Furthermore, introduction of femtocells into the D2D LTE-Advanced cellular network will consequently require new access control mechanisms [11], [12].In this paper, we propose an open access mechanism for femtocells to maximize network connectivity in the D2D LTEAdvanced networks.…”

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confidence: 99%

Network Connectivity Optimization for Device-to-Device Wireless System with Femto Cells

Gowtham¹

2017

IJRASET

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The demand for high data rate transmission has triggered the design and development of advanced cellular networks, such as 4th generation long term evolution (LTE) networks. However, their poor coverage and relatively high interference can significantly impair data transmission. Femtocell and device-to-device (D2D) communication are promising solutions that have recently gathered interest. Operating in the licensed spectrum, femtocells provide users with higher capacity and coverage than their earlier designs, and they will be offered by cellular operators to enable high-data-rate local services in future LTE Advanced networks. As an underlay to the cellular networks, D2D communication enables nearby devices to communicate directly with each other by reusing cellular resources, which reduces interference in the cellular network compared with communication through base stations. However, the tight integration of femtocells and D2D communication creates a challenge for existing network design and is less studied in the literature. In this paper, we propose an open-access algorithm for femtocell base stations in D2D LTE-Advanced networks, in order to optimize network connectivity. Additionally, a greedy algorithm is proposed to balance macrocell base stations and femtocell base stations to maximize network connectivity. The simulation results demonstrate the effectiveness of the proposed. Keywords: I.INTRODUCTION The ever-increasing demand of user equipment (UE) and applications in cellular networks for higher data rate transmission has triggered design of new advanced cellular networks such as the 4th generation (4G) long term evolution (LTE) network. Studies show that more than 50% of voice calls and 70% of data traffic originate indoors [1]. The mobile operator faces challenges in providing in-building coverage due to poor indoor radio signal penetration and possibly crowded indoor environments such as shopping malls. In the LTE-Advanced networks, the femtocell approach is a potential solution to support higher data rate and reliable services to the subscribers, while allowing the operator to reduce data traffic on the expensive macrocell networks [1]. Femtocells can be employed as short-range, low-cost, and low-power base stations for providing cellular service within the home and enterprise environments [2]. On the other hand, to better support higher data rate local services, the cellular operator can integrate device-to-device (D2D) communication in future 4G LTE-Advanced cellular networks as an underlay. The D2D network is built by D2D UEs that do not communicate with each other via the base station (BS), which is called evolved NodeB (eNB) in the LTE architecture. In D2D networks, UEs instead communicate directly over one or more hops [3]. Enabling a D2D communication mode in cellular networks can improve system performance through better reuse of radio resources and reduced congestion when several UEs located in the same area want to communicate with each other [3]. The tight integration of femt...

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On femto deployment architectures and macrocell offloading benefits in joint macro-femto deployments

Cited by 165 publications

References 10 publications

A dynamic energy-saving strategy for green cellular railway communication network

A dynamic energy-saving strategy for green cellular railway communication network

Interference Mitigation for OFDM-Based Joint Macro-Femto Cellular Networks

Network Connectivity Optimization for Device-to-Device Wireless System with Femto Cells

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