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What is Orthogonal Frequency Division Multiple Access (OFDMA)

Chapter 566
Encyclopedia of Information Science and Technology, Third Edition
A multiple access technique adopted by next generation of WMCS for their radio access interface. It combines frequency and time access. By this reason, the radio resource is represented by a time-frequency space, known as a resource grid.
Published in Chapter:
Resource Allocation in OFDMA as an Optimization Problem
Álvaro Pachón (Universidad Icesi, Colombia), Ubaldo García-Palomares (Universidad de Vigo, Spain), and Juan Manuel Madrid (Universidad Icesi, Colombia)
Copyright: © 2015 |Pages: 11
DOI: 10.4018/978-1-4666-5888-2.ch566
Full Text Chapter Download: US $37.50 Add to Cart
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Chapter 5
Radio over Fiber for Broadband Communications: A Promising Technology for Next Generation Networks
Is an extension of OFDM for the case of multiuser systems for an efficient utilization of the spectrum resources. For example, OFDMA can be used as a multiple access scheme where groups of the subcarriers are allocated to different users.
Published in Chapter: Radio over Fiber for Broadband Communications: A Promising Technology for Next Generation Networks; From: Handbook of Research on Heterogeneous Next Generation Networking: Innovations and Platforms
Full Text Chapter Download: US $37.50 Add to Cart
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