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Enhanced Energy Efficiency in Dense Femto Cell Networks Using Modified Spreading Factor

Gomathi. D, Ramya Jothykumar
2017 International Journal of Engineering Research and  
Moreover, rapidly growing demands for capacity, results in ultra dense deployment of femto base station and the energy consumption of the cellular networks.  ...  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

Overview of LTE-A technology

Sravanthi Kanchi, Shubhrika Sandilya, Deesha Bhosale, Adwait Pitkar, Mayur Gondhalekar
2013 2013 IEEE Global High Tech Congress on Electronics  
Along with the rapid development in cellular technology, there has also been a significant increase in its user demands.  ...  to provide the best user experience as well as proving to be a complete 4G network.  ...  Heterogeneous networks Using a mix of macro, pico, femto and relay base-stations, heterogeneous networks enable flexible and low-cost deployments and provide a uniform broadband experience to users anywhere  ... 
doi:10.1109/ghtce.2013.6767272 fatcat:bli4iy64xnb3jffy5h2prfyry4

The OFDM-IDMA approach to wireless communication systems

Li Ping, Qinghua Guo, Jun Tong
2007 IEEE wireless communications  
This article outlines the basic principles of OFDM-IDMA. Comparisons with other alternative technologies such as OFDM-CDMA and OFDMA are provided.  ...  power efficiency. © 2007 IEEE.  ...  Yueqian Li for his help in the numerical simulations.  ... 
doi:10.1109/mwc.2007.386608 fatcat:ki4bxuxanbgdnjp2d3fw2jt45e

Nanotechnology for 5G

2016 International Journal of Science and Research (IJSR)  
It is expected that the wireless technologies will become wider and deeper in the coming years. The main contribution of this paper is definition of 5G i.e.  ...  The 5G technology which is expected to be launched by 2020 it is an upgraded version of the existing and establishing network 4G known as LTE (Long Term Evolution) network, this technology started an era  ...  Putting the impact in both mobile as well as core network is the mode of operation of the nanotechnology.  ... 
doi:10.21275/v5i2.nov152542 fatcat:duebgvkw5jafhnb7pvrt4we2nu


2013 Journal of Computer Science  
The outputs of various modulation schemes are plotted for both OFDMA and MC-CDMA systems.  ...  The modulated output is then fed to MC-CDMA System and OFDMA system in fast fading Rayleigh environment.  ...  It is recognized that future enhancements in Wireless communication includes the Inherent ability to support adhoc based Wireless networks.  ... 
doi:10.3844/jcssp.2013.500.513 fatcat:esiobz3l5jcvpjuh4hvbzmn4pi

Interference management in OFDMA femtocell networks: issues and approaches

N. Saquib, E. Hossain, Long Bao Le, Dong In Kim
2012 IEEE wireless communications  
In this article, we provide a survey on the different state-of-the-art approaches for interference and resource management in orthogonal frequency-division multiple access (OFDMA)-based femtocell networks  ...  One of the effective techniques of improving the coverage and enhancing the capacity and data rate in cellular wireless networks is to reduce the cell size (i.e., cell splitting) and transmission distances  ...  In OFDMA-based femtocell networks, due to the flexibility in spectrum allocation, orthogonal sub-carriers can be assigned to femtocells and macrocells.  ... 
doi:10.1109/mwc.2012.6231163 fatcat:belfxf774fatfbt3baee7bku7y

Review on Radio Resource Allocation Optimization in LTE/LTE-Advanced using Game Theory

Sanaa Oulaourf, Abdelfatteh Haidine, Abdelhak Aqqal, Hassan Ouahmane
2017 International Journal of Communication Networks and Information Security  
In fact, an efficient design of resource allocation schemes is the key to higher performance.  ...  Researches in the fourth generation (4G) wireless network field also exploited this advanced theory to overcome longterm evolution (LTE) challenges such as resource allocation, which is one of the most  ...  communications in cellular networks.  ... 
dblp:journals/ijcnis/OulaourfHAO17 fatcat:7pu674v2tbh3boigfo2ebbg5ge

A Detail Survey of Channel Access Method for Cognitive Radio Network (CRN) Applications toward 4G

Shivam Y, Prashant K, Ravi K.S, Vivek R, Devasis P
2021 South Asian Research Journal of Engineering and Technology  
Few users in a base station cellular are transferring information concurrently at low steady data charge.  ...  Who Offers the Right to the Community Operators for Long Term Use. b) Primary Networks: Those Are Number One Base Stations and Number One Quit Users. c) Secondary Networks: The Secondary Base Stations  ... 
doi:10.36346/sarjet.2021.v03i01.005 fatcat:leiq553eyveppkjg6cxgeaopry

Handover Performance in Mobile WIMAX Networks

2016 International Journal of Science and Research (IJSR)  
ACKNOWLEDGMENTS This Master's thesis was carried out in the iCONS group of the University of South Florida.  ...  HANDOVER AND POWER MANAGEMENT The Fundamental Handover of Cellular Networks Because of scarcity of frequency spectrum, cellular systems deploy smaller cells in order to achieve higher system capacity  ...  PHY Layer Data Rates Because the PHY layer of WiMAX is quite flexible, data rate performance varies based on the operating parameters.  ... 
doi:10.21275/v5i6.nov164380 fatcat:gtqczzovtvg5nlrqaqmphbavi4

Busy Bursts for Trading off Throughput and Fairness in Cellular OFDMA-TDD

Birendra Ghimire, Gunther Auer, Harald Haas
2009 EURASIP Journal on Wireless Communications and Networking  
Decentralised interference management for orthogonal frequency division multiple access (OFDMA) operating in time division duplex (TDD) cellular systems is addressed.  ...  Interference aware allocation of time-frequency slots is accomplished by letting receivers transmit a busy burst (BB) in a time-multiplexed minislot, upon successful reception of data.  ...  This work was presented in part at the IEEE International Symposium of Personal, Indoor and Mobile Radio Communications (PIMRC) 2008, Cannes, France.  ... 
doi:10.1155/2009/462396 fatcat:lwau2omgxzdpfijqdwx4ejuypu

Frequency and Subcarrier Reuse Partitioning for FH-OFDMA Cellular Systems

Yeonwoo Lee, Kyung-Ho Kim
2013 Journal of Korea Multimedia Society  
It will also be shown how the proposed scheme is well suited to FH-OFDMA based cellular systems aiming at low co-channel interference performance and optimized number of subcarriers  ...  The results are presented in the context of both blocking probability and BER performances.  ...  Therefore, in this paper we consider the application of subcarrier-subsets reuse partitioning in combination with a suitable frequency-reuse scheme for FH-OFDMA-based cellular systems.  ... 
doi:10.9717/kmms.2013.16.5.601 fatcat:ol27bv7qknfa7asnbhm4cqxm4q

Multiple Access Techniques for Next Generation Wireless: Recent Advances and Future Perspectives

Shree Krishna Sharma, Mohammad Patwary, Symeon Chatzinotas
2016 EAI Endorsed Transactions on Wireless Spectrum  
the next generation of cellular networks.  ...  The proposed concept envisions to employ joint antenna coding in order to enhance the orthogonality of SDMA beams with the objective of enhancing the spectral efficiency of future cellular networks.  ...  Although a significant capacity gain is expected to achieve with mm-wave communication systems over the current 4G wireless networks, several aspects of cellular systems need to be redesigned in order  ... 
doi:10.4108/eai.19-1-2016.151002 fatcat:7yxosuz675efvpme6b47bm5idu

An Architecture for M2M Communications Over Cellular Networks Using Clustering and Hybrid TDMA-NOMA

Anthonya Barsha Rozario, Md. Farhad Hossain
2018 2018 6th International Conference on Information and Communication Technology (ICoICT)  
Impact of system parameters including number of machines, cell radius, transmit power and channel model on system performance are examined.  ...  In IoT, a massive number of M2M devices (billions 4  High Power Consumption and Cost: In M2M communications, power consumption and cost are eminent design factors to make cellular networks feasible  ... 
doi:10.1109/icoict.2018.8528767 fatcat:46huq5xbevg5ffcxgg5lfxjiva

Energy Efficiency Tradeoff Mechanism Towards Wireless Green Communication: A Survey

Rajarshi Mahapatra, Yogesh Nijsure, Georges Kaddoum, Naveed Ul Hassan, Chau Yuen
2016 IEEE Communications Surveys and Tutorials  
Finally, the work provides an discussion, where impact of EE tradeoffs have been presented based on different wireless architecture towards realizing a green wireless communication network.  ...  The EE tradeoffs have been classified based on each protocol layer and discussed its affect in the network energy efficiency.  ...  Authors in [101] present a Green Adaptive Scheduling (GAS) algorithm that improves the scheduling EE in OFDMA based wireless cellular networks.  ... 
doi:10.1109/comst.2015.2490540 fatcat:zgs4ijt44bg23isvcqe4elv26m

Unified MIMO-Multicarrier Designs: A Space–Time Shift Keying Approach

Mohammad Ismat Kadir, Shinya Sugiura, Sheng Chen, Lajos Hanzo
2015 IEEE Communications Surveys and Tutorials  
We commence with a brief review of the family of MIMO systems, which is followed by the design of STSK systems in the context of MC modulation-based transmissions over dispersive wireless channels.  ...  Specifically, the STSK scheme is amalgamated with orthogonal frequency-division multiplexing, MC code-division multiple access, orthogonal frequency-division multiple access (OFDMA), and single-carrier  ...  and carbon footprint of cellular networks, "green" wireless systems designed for a high throughput, whilst maintaining a high Quality-of-Service (QoS) and flexible scalability represent a few of the compelling  ... 
doi:10.1109/comst.2014.2375321 fatcat:iuozclpzqrbbzhjr4uu2rcc52a
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