What Does Scalable Orthogonal Frequency Division Multiple Access (SOFDMA or S-OFDMA) Mean?

Techopedia Explains Scalable Orthogonal Frequency Division Multiple Access (SOFDMA or S-OFDMA)

  • The sub-carrier spacing does not depend on bandwidth

  • The volume of sub-carriers scales with bandwidth

  • The smallest unit of bandwidth allocation, depending on the idea of sub-channels, is fixed and bandwidth independent

  • The volume of sub-channels scales with bandwidth, and the ability of every individual sub-channel remains constant

  • Advanced Modulation and Coding (AMC)

  • Multiple-Input-Multiple-Output (MIMO) in DL and UL

  • High-efficiency uplink sub-channel structures

  • Hybrid Automatic Repeat Request (H-ARQ)

  • Other default features including a range of sub-carriers allocation in addition to diversity schemes.