Performance and simulation analysis of 802.11ax OFDMA in contention-driven scenarios [PDF]
PeerJ Computer ScienceThe 802.11ax standard introduces Orthogonal Frequency Division Multiple Access (OFDMA), shifting the role of access points (APs) in Wi-Fi networks. This shift integrates intricate scheduling logic, assigning coordinator roles to APs for multi-user uplink
Memoona, Sung Won Kim
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IEEE 802.11ax OFDMA Resource Allocation with Frequency-Selective Fading [PDF]
Sensors, 2021 This paper studies the usage of orthogonal frequency division multiple access (OFDMA) for uplink transmissions in IEEE 802.11ax networks. OFDMA enables simultaneous multi-user transmissions in Wi-Fi, but its usage requires efficient resource allocation ...
Sergei Tutelian +3 more
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Energy Harvesting for Secure OFDMA Systems [PDF]
2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP), 2014 Energy harvesting and physical-layer security in wireless networks are of great significance. In this paper, we study the simultaneous wireless information and power transfer (SWIPT) in downlink orthogonal frequency-division multiple access (OFDMA ...
Feng, Suili, Liu, Yuan, Zhang, Meng
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Reduced Feedback Designs for SDMA-OFDMA Systems [PDF]
2009 IEEE International Conference on Communications, 2009 In SDMA-OFDMA wireless communication systems, the feedback load increases with the number of users, subcarriers and antennas in the cell. In this paper, we propose two efficient reduced feedback algorithms by selecting the clusters at the user side. For each cluster, we select the users according to their norm and their orthogonality.
Berna Özbek, Didier Le Ruyet
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Exploiting Interference Alignment in Multi-Cell Cooperative OFDMA Resource Allocation [PDF]
, 2011 This paper studies interference alignment (IA) based multi-cell cooperative resource allocation for the downlink OFDMA with universal frequency reuse. Unlike the traditional scheme that treats subcarriers as separate dimensions for resource allocation ...
Da, Bin, Zhang, Rui
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Relay Positions Considering Interference from Other Sub-Channels in OFDMA-Based D2D Group-Casting Systems [PDF]
Sensors, 2019 Device-to-device (D2D) communication is a technique for direct communication between devices without going through a base station or other infrastructure.
Minjoong Rim, Eulhyeon Go
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Performance Analysis of OFDMA and SC-FDMA
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2017 The main challenge in any high-speed digital communication system is how to maximize the data rate with minimizing the bit error rate. Several techniques have been developed to achieve this point.
Muhanned AL-Rawi
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Subcarrier Filtering For Spectrally Efficient Multicarrier Modulation Schemes and Its Impact on PAPR: A Unified Approach [PDF]
International Journal of Electronics and Telecommunications, 2023 Multicarrier modulation (MCM) based schemes have been a major contributing factor in revolutionizing cellular networks due to their ability to overcome fading.
Kiran V. Shanbhag, Dayakshini Sathish
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Next Generation Dynamic Inter-Cellular Scheduler [PDF]
International Journal of Electronics and Telecommunications, 2019 Orthogonal frequency division multiple access (OFDMA) in Long Term Evolution (LTE) can effectively eliminate intra-cell interferences between the subcarriers in a single serving cell.
Mert Yağcıoğlu, Oğuz Bayat
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On Joint Sub-channel Allocation, Duplexing Mode Selection, and Power Control in Full-Duplex Co-Channel Femtocell Networks [PDF]
AUT Journal of Electrical Engineering, 2018 As one of the promising approaches to increase the network capacity, Full-duplex (FD) communications have recently gained a remarkable attention. FD communication enables wireless nodes to simultaneously send and receive data through the same frequency ...
M. Rasti, Sh. Kazemi Taskou
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