This paper compares two different filter bank multi carrier (FBMC) modulations: a critically sampled and therefore spectral maximally efficient FBMC orthogonal quadrature amplitude modulation (OQAM) approach, as well as an over sampled (OS)-FBMC system. Under a dispersive channel, FBMC/OQAM and OS-FBMC require equalisation and timing synchronisation, which here is accomplished by a fractionally spaced equaliser updated by a concurrent constant modulus and decision-directed algorithm. Simulation demonstrate that FBMC/OQAM is more difficult to equalise particularly at lower SNR, since its additional CCI terms amplify the equalisation algorithm’s gradient noise.
|Title of host publication||11th IMA International Conference on Mathematics in Signal Processing|
|Place of Publication||Southend-on-sea|
|Number of pages||4|
|Publication status||Published - 12 Dec 2016|
|Event||11th IMA International Conference on Mathematics in Signal Processing - IET Austin Court, Birmingham, United Kingdom|
Duration: 12 Dec 2016 → 14 Dec 2016
|Conference||11th IMA International Conference on Mathematics in Signal Processing|
|Period||12/12/16 → 14/12/16|
- filter bank multicarrier modulations
- orthogonal quadrature amplitude modulation
- timing synchronisation
Nagy, A. A., & Weiss, S. (2016). Comparison of different filter-bank based multicarrier systems with fractionally spaced equalisation. In 11th IMA International Conference on Mathematics in Signal Processing (pp. 1-4). Southend-on-sea.