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Computationally efficient bandwidth allocation and power control for ofdma
2003
IEEE Transactions on Wireless Communications
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This paper studies the problem of finding an optimal subcarrier and power allocation strategy for downlink communication to multiple users in an orthogonal-frequency-division multiplexing-based wireless ...
Index Terms-Multiuser, orthogonal-frequency-division multiplexing (OFDM), orthogonal-frequency-division multiplexing (OFDM)-based frequency-division multiple-access (OFDMA), power control, water filling ...
While OFDMA systems have been proposed, power control and bandwidth allocation for these systems is still largely unexplored. ...
doi:10.1109/twc.2003.819016
fatcat:6vq5bp5p4faudgjykl3kq6rhti
Subcarrier Allocation Techniques in OFDMA
2019
VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE
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Analysis a few of the crucial algorithms which were proposed for efficient subcarrier allocation is completed in t their paper ...
The allocation issue has gotten active desire for the r esearch community and has now been examined from, essentially, two views: schemes that look for to attenuate the quantity of send energy and the ...
. Computationally Effective Bandwidth Allocation and energy Control for OFDMA: Because the algorithm proposed by Wong et al. ...
doi:10.35940/ijitee.i3245.0789s319
fatcat:oun5l7rbs5e5lgmlyuoqexq7hq
Efficient Resource Allocation for OFDMA Multicast Systems With Spectrum-Sharing Control
2009
IEEE Transactions on Vehicular Technology
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This paper considers the important problem of efficient allocation of available resources (such as radio spectrum and power) in orthogonal frequency-division multiple-access (OFDMA)-based multicast wireless ...
Index Terms-Genetic algorithm (GA), orthogonal frequencydivision multiple access (OFDMA), resource allocation, spectrumsharing control, wireless multicast. ...
Le-Ngoc (McGill University, Montreal, QC, Canada) and the anonymous reviewers, whose invaluable comments have helped improve the presentation of this paper. ...
doi:10.1109/tvt.2009.2027331
fatcat:swux6jdkb5dg7ndkztph6k2p4e
Long-Term Proportional Fair QoS Profile Follower Sub-carrier Allocation Algorithm in Dynamic OFDMA Systems
[article]
2011
arXiv
pre-print
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In this paper, Long-Term Proportional Fair (LTPF) resource allocation algorithm in dynamic OFDMA system is presented, which provides long-term QoS guarantee (mainly throughput requirement satisfaction) ...
The LTPF algorithm dynamically allocates the OFDMA sub-carriers to the users in such a way that in long-term the individual QoS requirement is achieved as well as fairness among the users is maintained ...
Tradeoff between capacity and fairness can be efficiently realized by efficient proportional fair (PF) OFDMA subcarrier and power allocation algorithms with QoS provisioning in [8] . ...
arXiv:1106.0969v1
fatcat:opbxbty3hbhpxo7lknuvurjbei
Power-Efficient Resource Allocation in NOMA Virtualized Wireless Networks
2016
2016 IEEE Global Communications Conference (GLOBECOM)
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The authors propose a sub-optimal power allocation scheme called fractional transmit power allocation (FTPA) that is similar to the transmission power control mechanism in LTE. ...
access (OFDMA) where the specific bandwidth is divided into a set of sub-carriers denoted by N and each sub-carrier can be allocated to a maximum of one user at a time. ...
doi:10.1109/glocom.2016.7842162
dblp:conf/globecom/DawadiPDL16
fatcat:xiawr2kumfaglh4zz4cf2onlce
Adapting IEEE 802.22 OFDMA system for P2PWRANs
2013
2013 IEEE Global Communications Conference (GLOBECOM)
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Therefore, in this paper we look at the unexplored upstream burst allocation where slots can be reused among CPEs and the BS with power control mechanisms. ...
In one slot only one CPE can be allocated, and every intra-cell packet needs to be routed through the BS. ...
Greedy algorithm is a simple, efficient, and widely used algorithm for vertex coloring problems [16] , which suits well for the burst allocation problem. ...
doi:10.1109/glocom.2013.6831200
dblp:conf/globecom/ShiPRN13
fatcat:hg37b3fnjvgbngdidigir2h4jq
Uplink non-orthogonal multiple access for 5G wireless networks
2014
2014 11th International Symposium on Wireless Communications Systems (ISWCS)
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In addition, a novel subcarrier and power allocation algorithm is proposed for the new NOMA scheme that maximizes the users' sum-rate. ...
Numerical results show that the proposed NOMA scheme can significantly improve the system performance in terms of spectral efficiency and fairness comparing to OFDMA. ...
SUBCARRIER AND POWER ALLOCATION In this section, the subcarrier and power allocation for the proposed NOMA scheme will be considered. ...
doi:10.1109/iswcs.2014.6933459
dblp:conf/iswcs/Al-ImariXIT14
fatcat:qdqrm2iukbgl5crr42umr3x2om
Survey and Performance Evaluation of Multiple Access Schemes for Next-Generation Wireless Communication Systems
2021
IEEE Access
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A detailed search for all possible user pairs and a computationally complex allocation of power will achieve optimal NOMA resources allocation. ...
OFDMA comparisons is shown for bit rate per user and spectrum efficiency in Figs. 9 and 10, respectively. A comparison between spectral efficiency and energy efficiency is depicted. ...
Islam secured three gold medals from three international scientific and technological competitions and received four best paper awards from different national and international conferences. ...
doi:10.1109/access.2021.3104509
fatcat:uniwheb5zbcqze23sj2j2unffq
Energy-Efficient Heterogeneous Cellular Networks With Spectrum Underlay and Overlay Access
2018
IEEE Transactions on Vehicular Technology
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In this paper, we provide joint subcarrier assignment and power allocation schemes for quality-of-service (QoS)constrained energy-efficiency (EE) optimization in the downlink of an orthogonal frequency ...
We therefore develop a novel resource allocation approach based on the concepts of spectrum overlay access and resource efficiency (RE) (normalized EE-SE trade-off). ...
The authors in [23] further investigate the joint power allocation and admission control problem in OFDMA-based HCNs. ...
doi:10.1109/tvt.2017.2773506
fatcat:g6skku7nkrhdtdbbetdnefq43m
Energy-Efficient Heterogeneous Cellular Networks with Spectrum Underlay and Overlay Access
[article]
2016
arXiv
pre-print
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In this paper, we provide joint subcarrier assignment and power allocation schemes for quality-of-service (QoS)-constrained energy-efficiency (EE) optimization in the downlink of an orthogonal frequency ...
We therefore develop a novel resource allocation approach based on the concepts of spectrum overlay access and resource efficiency (RE) (normalized EE-SE trade-off). ...
The authors in [28] further investigate the joint power allocation and admission control problem in OFDMA-based HCNs. ...
arXiv:1610.09683v1
fatcat:abrzywgqobhuznken5tb5o2y5m
Power Allocation Evaluation for Downlink Non-Orthogonal Multiple Access (NOMA)
2020
International Journal of Advanced Computer Science and Applications
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This paper compares the performance of three power allocation schemes: fixed power allocation, fractional transmit power allocation and full search power allocation. ...
The algorithms are analyzed in different simulation scenarios using three performance metrics of the spectrum efficiency and energy efficiency and sum rate. ...
Fig. 4 . 4 Capacity Gain of NOMA and OFDMA.
Fig. 6 . 6 Spectral Efficiency of different Power Allocation Algorithms. ...
doi:10.14569/ijacsa.2020.0110417
fatcat:pscjney7ebhyborp6ctiqo6ste
Capacity Behaviour Using WSDV Scheme over WiMAX
2014
Social Science Research Network
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Mobile WiMAX is able to achieve high spectral efficiency which translates to lower cost per subscriber for the operator, by utilizing orthogonal frequency division multiple access (OFDMA) radio design, ...
estimate of the amount of bandwidth required for WiMAX TV services and also enabling a designer to optimally select the number of channels via the WSDV service while meeting a desired level of blocking ...
The DL-MAP and UL-MAP signal the sub channel and slot allocation and other control information for the DL and UL sub-frames, respectively. OFDMA system is the concept of sub-channelization. ...
doi:10.2139/ssrn.3020650
fatcat:bcufj3sypje23on5jtezimtknu
ECO-FRIENDLY ENERGY EFFICIENT TRANSMISSION
2017
International Journal of Recent Trends in Engineering and Research
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In this paper we propose a technique for energy-efficient data transmission. We use two CCs and it supports both Real Time (RT) and Non-Real Time (NRT) users. ...
The vast requirement and development of Green Communication leads to energy saving transmissions. ...
It also employs a computationally efficient scheme according to the fluctuating traffic loads. ...
doi:10.23883/ijrter.2017.3510.n4nsk
fatcat:mbgb2odrdngy7pkuwquubmt4fa
Resource Allocation in Downlink MIMO-OFDMA with Proportional Fairness
2009
Journal of Communications
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As a result, it may be suitable for fulfilling diverse QoS requirements of MIMO-OFDMA systems. Index Terms-adaptive resource allocation, SISO/MIMO-OFDMA, diverse QoS requirements ...
A new scheme for MIMO-OFDMA (Multiple Input Multiple Output -Orthogonal Frequency Division Multiple Access) downlink resource allocation is presented in this paper. ...
Thus it is computationally prohibitive to solve the optimal power allocation. ...
doi:10.4304/jcm.4.1.8-13
fatcat:kfk74s2tgvaipdiabnoz4c7xhu
A novel PSO based carrier frequency offset estimation technique for Wi-MAX uplink transmissions
2011
2011 11th International Conference on Hybrid Intelligent Systems (HIS)
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In this paper, we propose two efficient null subcarrier based CFO estimation techniques based on particle swam optimization (PSO) and artificial bee colony (ABC) techniques which performs the estimation ...
In OFDMA uplink, each user may experience a different CFO relative to the base station reference carrier and the estimation of them turn out to be a multiple parameter estimation problem. ...
The authors would like to acknowledge the support and cooperation received from the Deanship of Scientific Research, King Faisal University. ...
doi:10.1109/his.2011.6122137
dblp:conf/his/Al-HumaidanRS11
fatcat:xce5aqxnafeirdsleqn553dh3u
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