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An Analytical Framework for Heterogeneous Partial Feedback Design in Heterogeneous Multicell OFDMA Networks

Yichao Huang, Bhaskar D. Rao
2013 IEEE Transactions on Signal Processing  
feedback in a general OFDMA-based heterogeneous multicell employing the best-M partial feedback strategy.  ...  best-1 feedback, and derive an asymptotic approximation for the sum rate in order to determine the minimum required partial feedback.  ...  Currently, in an OFDMA-based system which groups subcarriers into resource blocks [35] - [37] to form the basic scheduling and feedback unit, two partial feedback strategies are appealing: the thresholding-based  ... 
doi:10.1109/tsp.2012.2226447 fatcat:ldwir4yzgrgxrpedsstnd2zrgy

Fairness-aware radio resource management in downlink OFDMA cellular relay networks

Mohamed Salem, Abdulkareem Adinoyi, Mahmudur Rahman, Halim Yanikomeroglu, David Falconer, Young-Doo Kim
2010 IEEE Transactions on Wireless Communications  
We show that the proposed centralized scheme is different from the traditional centralized schemes in terms of the substantial savings in complexity and feedback overhead.  ...  Therefore, this paper provides a comprehensive centralized RRM algorithm for downlink OFDMA cellular fixed relay networks in a way to ensure user fairness with minimal impact on network throughput.  ...  in OFDMA-based systems [13] , [28] .  ... 
doi:10.1109/twc.2010.05.081548 fatcat:mgemuvpc7favlbw5k2siqc44l4

Improving the Interplay between Periodic Channel State Information Feedback and Static Intercell Interference Coordination in LTE

David González G, Mario Garcia-Lozano, Silvia Ruiz Boqué, Joan Olmos
2012 Journal of Communications  
In this article, an improved periodic channel state information feedback scheme suitable to work in conjunction with static ICIC techniques is presented.  ...  Simulations results show that gains in terms of system capacity are achieved with respect to existing LTE-based mechanisms without additional complexity.  ...  The impact of the novel scheme (compared with existing LTE-based and the ideal one) on the performance of a QoS-oriented scheduler has been evaluated and analyzed in the context of a multiservice environment  ... 
doi:10.4304/jcm.7.9.660-675 fatcat:v7hncurikjddbp3ylx6qiom3m4

Random Space–Time Line Code with Proportional Fairness Scheduling

Jingon Joung
2020 IEEE Access  
Numerical results show that the proposed random STLC with a PF scheduler and partial CSI can provide an achievable rate and fairness that are comparable to that of the optimal STLC system with full CSI  ...  This scheme is a benchmarking scheme for the proposed scheme. • Random STLC and a PF scheduler with partial CSI (Ran-PF-PCSI): Random STLC is used with the randomly generated channel vector w.  ... 
doi:10.1109/access.2020.2975133 fatcat:cegxlbbeineatjxtftfhpvd4ci

Resource Allocation for Multi-User OFDMA-Based Wireless Cellular Networks [chapter]

Dimitri Ktenas, Emilio Calvanese
2011 Vehicular Technologies: Increasing Connectivity  
The goals of this chapter are for the reader to have a basic understanding of resource allocation problem in OFDMA-based systems and, to have an in-depth insight of the state-of-the-art research on that  ...  Emerging broadband wireless systems such as WiMAX and 3GPP/LTE employ Orthogonal Frequency Division Multiple Access (OFDMA) as the basic multiple access scheme.  ...  Further work will focus on the combination of our proposals with CQI feedback schemes in order to assess the robustness of our proposals with respect to partial and inaccurate CQI reporting schemes.  ... 
doi:10.5772/15160 fatcat:zhjofr7lkvc2vlneii72iw3oxe

Dynamic Resource Management for Cognitive Radios Using Limited-Rate Feedback

A.G. Marques, Xin Wang, G.B. Giannakis
2009 IEEE Transactions on Signal Processing  
Analysis of the computational and feedback overhead along with simulations assessing the performance of the novel algorithms are also provided.  ...  Users rely on adaptive modulation, coding and power modes that they select in accordance with the limited-rate feedback they receive from the access point.  ...  MODELING PRELIMINARIES Consider an OFDMA air interface between an access point (AP) equipped with a central scheduler and wireless users.  ... 
doi:10.1109/tsp.2009.2022009 fatcat:n3jjhfvknnhr5bp5jf6hb3gp24

A New OFDMA Scheduler for Delay-Sensitive Traffic Based on Hopfield Neural Networks

Nuria García, Jordi Pérez-Romero, Ramón Agustí
2008 EURASIP Journal on Wireless Communications and Networking  
This paper introduces a novel joint channel and queuing-aware OFDMA scheduler for delay-sensitive traffic based on a hopfield neural network (HNN) scheme.  ...  The algorithms have been evaluated for delay-sensitive traffic and they have been compared against other state-of-the-art algorithms existing in the literature, exhibiting a better behavior in terms of  ...  ACKNOWLEDGMENTS This work has been partially funded by the European Network of Excellence NEWCOM (Contract no. 507325) and by the Generalitat de Catalunya under Contract no. AGAUR 2005SGR00197.  ... 
doi:10.1155/2008/817676 fatcat:vuxkxxkkdnfdpm2pwjc2fq4zje

Radio Resource Management in OFDMA-Based Cellular Networks Enhanced with Fixed and Nomadic Relays

Mohamed Salem, Abdulkareem Adinoyi, Halim Yanikomeroglu, Young-Doo Kim
2010 2010 IEEE Wireless Communication and Networking Conference  
NRS operation is the same in the two schemes and can be extended to any other OFDMA-based RRM scheme.  ...  We devise novel radio resource management (RRM) schemes to facilitate the operation of fixed relay stations (FRSs) and nomadic relay stations (NRSs) in OFDMA-based multicellular networks.  ...  and operates in an OFDMA-based cellular system where excessive CCI is avoided through acquiring the carriers with the least activity observed.  ... 
doi:10.1109/wcnc.2010.5506118 dblp:conf/wcnc/SalemAYK10 fatcat:emc3c3xb2rc7fi7gcgav24fwsi

OLM: Opportunistic Layered Multicasting for Scalable IPTV over Mobile WiMAX

Chih-Wei Huang, Shiang-Ming Huang, Po-Han Wu, Shiang-Jiun Lin, Jenq-Neng Hwang
2012 IEEE Transactions on Mobile Computing  
To overcome the inevitable packet loss in a multicast session, an FEC rate adaptation scheme to approach theoretical performance is also presented.  ...  This work is a lead off and complete synergy of layered video multicasting with opportunistic concept.  ...  His research interests include design and evaluation of wireless and mobile computing systems and system integration.  ... 
doi:10.1109/tmc.2011.34 fatcat:cnaus7xkdjg33ez2pykt6xz374

PSFCS: Robust Emergency Communications Supporting High Mobility Based on WiMAX MMR Networks

Wen-Kang Jia, Chia-Yao Chen, Yaw-Chung Chen
2014 International Journal of Distributed Sensor Networks  
Since it is difficult to fully eliminate the Doppler effect under high speed moving environment, we propose an enhanced CRC-based error correction scheme that carries as much extra segmented frame Check  ...  Therefore the PSFCS achieves a significant performance improvement over the legacy FCS scheme in terms of error detection and correction of emergency MBS frames in a WiMAX MMR network operating in transparent  ...  Orthogonal Frequency Division Multiple Access (OFDMA) Systems and Their Drawbacks.  ... 
doi:10.1155/2014/254753 fatcat:fe2kk2npknez5jgqjm5xr243ie

Semi-static interference coordination in OFDMA/LTE networks

Donald Parruca, Fahad Aizaz, Soamsiri Chantaraskul, James Gross
2014 Proceedings of the 17th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems - MSWiM '14  
The power allocation per resource block and cell is adapted in the range of seconds according to the load in the system.  ...  An open issue in the literature is the question how fast the adaptation should be performed.  ...  The pathloss values h 2 k,j were fed into our OMNET++ based system level simulator, mimicking the radio access of an OFDMA/LTE system.  ... 
doi:10.1145/2641798.2641818 dblp:conf/mswim/ParrucaACG14 fatcat:zctga6aypzauvcpy5ao5xehy5m

A Cross-Layer Radio Resource Management in WiMAX Systems [chapter]

Sondes Khemiri Guy Pujolle, Khaled Boussetta Nadjib Achir
2012 Quality of Service and Resource Allocation in WiMAX  
The evaluation was conducted using a WiMAX simulator based on OFDMA mechanism developed in NS2 simulator.  ...  Then the base station scheduler can place the packets in BS files, depending on the constraints of their services, which are indicated in the CID (Connexion IDentifier).  ... 
doi:10.5772/28946 fatcat:wo4x2gojznd2fnkipsibxtbueu

EESM-Based Link Adaptation in Point-to-Point and Multi-Cell OFDM Systems: Modeling and Analysis

Jobin Francis, Neelesh B. Mehta
2014 IEEE Transactions on Wireless Communications  
Thus, adaptive modulation and coding (AMC) in these systems is driven by a vector of subcarrier SNRs experienced by the codeword, and is more involved.  ...  We first propose a novel statistical model for the EESM, which is based on the Beta distribution. It is motivated by the central limit approximation for random variables with a finite support.  ...  A heterogeneous multi-cell orthogonal frequency division multiple access (OFDMA) system with partial feedback and continuous rate adaptation is considered in [18] .  ... 
doi:10.1109/twc.2013.112613.130716 fatcat:3tr5bpqmgzcmrbg4vt6avdn6aa

A Self-Organized Resource Allocation using Inter-Cell Interference Coordination (ICIC) in Relay-Assisted Cellular Networks [article]

Mahima Mehta, Osianoh Glenn Aliu, Abhay Karandikar, Muhammad Ali Imran
2014 arXiv   pre-print
We compare the performance of reuse-1, reuse-3, soft frequency reuse (SFR) scheme, proposed plan with and without relays.  ...  In a multi-cell scenario, the inter-cell interference (ICI) is detrimental in achieving the intended system performance, in particular for the edge users.  ...  Acknowledgement This project is being carried out under the India-UK Advanced Technology of Centre of Excellence in Next Generation Networks (IU-ATC) project and funded by the Department of Science and  ... 
arXiv:1105.1504v3 fatcat:c33gdyvhanhobb6lwhosat5gma

Antenna Selection for Next Generation IEEE 802.16 Mobile Stations

C. Nie, Z. Tao, N. B. Mehta, A. F. Molisch, J. Zhang, T. Kuze, S. Panwar
2008 2008 IEEE International Conference on Communications  
The IEEE 802.16/WiMAX standard has fully embraced multi-antenna technology and can, thus, deliver robust and high transmission rates and higher system capacity.  ...  In this paper, a novel antenna selection protocol tailored for next-generation IEEE 802.16 mobile stations is proposed.  ...  Another worthwhile exercise is to evaluate the performance of the protocol in an 802.16 system with high mobility.  ... 
doi:10.1109/icc.2008.650 dblp:conf/icc/NieTMMZKP08 fatcat:57irlakrv5hcznohkon2khjcwi
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