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Energy Efficient and Subcarrier Allocation for OFDMA based Cooperative Relay Networks
2012
International Journal of Computer Applications
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savings for uplink cellular OFDMA transmissions. ...
The previous works in this area focused on optimizing energy efficiency by maximizing the instantaneous bits-per-Joule metric through Equal-Power Allocation (EPA) schemes resulted in significant energy ...
To further maximize spectral efficiency, it is also preferable to reuse spectrum opportunistically under OFDMA resource allocation; in fact future cellular networks are evolving toward frequency reuse ...
doi:10.5120/7308-0525
fatcat:xdfojn456bg4fdbdsp4pnfwhgi
Evaluation of Energy-Efficiency Problem in Orthogonal Frequency Division Multiple Access Cellular Networks
2019
Celal Bayar Universitesi Fen Bilimleri Dergisi
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In this study, the energy-efficiency (EE) problem is investigated for downlink Orthogonal Frequency Division Multiple Access (OFDMA) cellular networks. ...
Simulation results are obtained to confirm the performance of the presented scheme in terms of energy-efficiency and total data rate. ...
Conclusion In this paper, we have focused on the energy-efficiency problem in OFDMA downlink cellular networks. ...
doi:10.18466/cbayarfbe.416583
fatcat:q6bt63htsjbthdh4oujf3jlrma
Energy-efficient communication for user-relay aided cellular networks with OFDMA
2019
Physical Communication
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In this paper, energy-efficient communication is investigated for the orthogonal frequencydivision multiple-access (OFDMA) based user-relay aided cellular networks that is envisioned as a promising technology ...
It is urgent to find solutions that can satisfy the high data rate quality of service (QoS) requirements from users and obtain high energy-efficiency (EE) for the network at the same time. ...
Thus, in this paper, we focus on the energy-efficient communication in downlink OFDMA cellular networks using mobile relaying. ...
doi:10.1016/j.phycom.2018.12.021
fatcat:yxyuatgukjf5dk3xvg6gfypgi4
A Novel Architecture for 5G Ultra Dense Heterogeneous Cellular Network
2018
International Journal of Advanced Computer Science and Applications
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By reducing the area of the cell, the frequency efficiency and network coverage are improved. ...
The heterogeneity of different types of base stations (macro area network base station, micro-cell base station, and small cell base station) provides efficient network coverage. ...
The energy efficiency of a massive MIMO system depends on the circuit energy consumption. ...
doi:10.14569/ijacsa.2018.091123
fatcat:kszqadypjvdmjcbgojgkhy42xy
NOVEL ENERGY-SAVING TRANSMISSIONS IN OFDMA-BASED MULTICARRIER BASE STATIONS BY RADIO RESOURCE MANAGEMENT
2017
International Journal of Advanced Research
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in varied energy-saving styles for cellular systems. ...
resource allocation problem needs M2M and H2H user"s energy efficient resource allocation in uplink LTE networks under statistical QoS provisioning the dual problem. ...
( B) Green Wireless Communication:-Green wireless communication technology is working on efficient energy utilization of future communication networks. ...
doi:10.21474/ijar01/4054
fatcat:5sv5g5o64jf4ndobuwe7ugmmuu
Energy-efficient wireless communications: tutorial, survey, and open issues
2011
IEEE wireless communications
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Therefore, energy-efficient communications have been paid increasing attention under the background of limited energy resource and environmental-friendly transmission behaviors. ...
Some valuable topics on energy-efficient design are also identified for future research. ...
Various energy-efficient methods have been proposed for different layers of wireless networks. For network planning, the impact of cell sizes on EE in cellular networks has been studied [2] . ...
doi:10.1109/mwc.2011.6108331
fatcat:2j77jyohc5e6bd7jcpyxwr56re
Swarm Optimization based Radio Resource Allocation for Dense Devices D2D Communication
2018
International Journal of Advanced Computer Science and Applications
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Using this advantage, an efficient RR allocation algorithm based on swarm optimization is proposed in this paper, that allows utmost spatial reuse in multiusers and OFDMA networks. ...
It enhances the capacity (Bit/Hz), overall system throughput and spectral efficiency with respect to sub-carriers in OFDMA networks. ...
ACKNOWLEDGMENT The authors would like to express their gratitude to the Ministry of Higher Education (MOHE) in Malaysia and Universiti Teknologi Malaysia (UTM) for providing the financial support for this ...
doi:10.14569/ijacsa.2018.090636
fatcat:yjeqzwl2s5cedfamf6ukmfzgrq
Bandwidth Expansion Mode Under Component Carrier based scheme in LTE Networks
2019
International journal of recent technology and engineering
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Through component carrier based scheme the energy efficient LTE networks can be realized and energy efficiency can be improved to some extent through component carrier based scheme ...
Wireless cellular networks are an underlying for mobile phones, personal communication systems etc. There is a dramatic growth of wireless cellular networks in number of mobile phones. ...
OFDM COMPONENT CARRIERSBased on the OFDMA there two component carrier techniques through which the energy efficiency can be improved. ...
doi:10.35940/ijrte.c3944.098319
fatcat:ybu3fkouarbj5nhhg7fuamp7ba
Guest Editorial Spectrum and Energy Efficient Design of Wireless Communication Networks: Part I
2013
IEEE Journal on Selected Areas in Communications
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In recent years, energy and power efficiencies of wireless networks have become more crucial because of the steadily rising energy cost and environmental concerns. ...
Thus, there is an urgent need to address key challenges and state-of-the-art solutions for joint spectrum and energy efficient design (SEED) and optimization of wireless communication networks. ...
The paper by Soh, Quek, Kountouris and Shin, entitled, "Energy Efficient Heterogeneous Cellular Networks," investigates the design of energy efficient cellular networks through the deployment of sleeping ...
doi:10.1109/jsac.2013.130501
fatcat:xka7mptrz5hxhcjzne7q5zzmp4
An energy-efficient Macro-micro hierarchical structure with resource allocation in OFDMA cellular systems
2012
7th International Conference on Communications and Networking in China
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Macro-micro networks, as typical hierarchical net works, are advanced in increasing the network capacity as weD as in decreasing the network energy consumption during peak hours. ...
However, the fluctuation of traffic load over space and time brings challenges and opportunities in energy saving. ...
In [9] , the impact of cell size on energy efficiency in cellular networks has been analogized. It has been presented that reducing cell size may increase the energy efficiency. ...
doi:10.1109/chinacom.2012.6417538
dblp:conf/chinacom/ChenFY12
fatcat:ujlrfcbqvvfu7p7qanu2lmasfa
Non-Orthogonal Multiple Access (NOMA) for 5G Networks
[chapter]
2016
Towards 5G Wireless Networks - A Physical Layer Perspective
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Finally, we discuss the spectral efficiency (SE) of the networks that employ NOMA with its relations with energy efficiency (EE). ...
We further discuss the impacts of imperfect receivers on the performance of NOMA networks. ...
Spectral efficiency and energy efficiency Most analysis so far included the throughput performance of the network. ...
doi:10.5772/66048
fatcat:wakht6nnj5aypoclw6t53y3bda
Enhanced Energy Efficiency in Dense Femto Cell Networks Using Modified Spreading Factor
2017
International Journal of Engineering Research and
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So that the energy efficiency of the dense FBS network can be maximized by increasing throughput of the system. ...
The energy efficiency of dense FBS networks can be maximized; by assigning transmission power in terms of spreading factor. ...
There are several publications on OFDMA based femtocell networks, which propose better flexibility in terms of allocation of frequency resources. ...
doi:10.17577/ijertv6is040399
fatcat:rbjgiafb7ve27eflyilmeilpnm
Energy-Efficient Scheduling and Power Allocation in Downlink OFDMA Networks with Base Station Coordination
[article]
2014
arXiv
pre-print
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This paper addresses the problem of energy-efficient resource allocation in the downlink of a cellular OFDMA system. ...
Results show that the maximization of the energy efficiency is approximately equivalent to the maximization of the spectral efficiency for small values of the maximum transmit power, while there is a wide ...
The biggest efforts to increase the energy efficiency of a wireless network are concentrated on the access network, since it consumes the largest portion of energy [17] . ...
arXiv:1405.2962v1
fatcat:hcgzhsymbrdjvnwgwk5epmtghm
GRANULARITY OF EFFICIENT ENERGY SAVING IN WIRELESS SENSOR NETWORKS
2013
International Journal of Research in Engineering and Technology
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This paper focuses on increasing the granularity of Efficient Energy Saving units without compromising flexibility. ...
This is carried out by matching the granularity to the degree-of-freedom processing in most wireless Networks. ...
Thus, the effect of signaling overhead on energy-efficient OFDMA design should be further studied. ...
doi:10.15623/ijret.2013.0204024
fatcat:5jvn4jvxxzasrm3gi3zoppmipe
Active-mode power optimization in OFDMA-based wireless networks
2010
2010 IEEE Globecom Workshops
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Energy efficiency is increasingly important for wireless cellular systems due to the limited battery resources of mobile clients. ...
In this paper, we evaluate the performance of such techniques using realistic cellular system simulation model. Specifically, we focus on the emerging fourth generation IEEE 802.16m standard. ...
In [6] the problem of energy efficient transmission in wireless networks is studied for flat fading OFDMA channels. ...
doi:10.1109/glocomw.2010.5700433
fatcat:vahobhxisnhhpfmqjszak4fgse
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