In this paper we consider a FDMA (frequencydivision multiple access) system employingOQPSKmodulations (offset quaternary phase shift keying)withquasi-constantenvelope. To increase the overallspectralefficiencywe considerspectraloverlapping between differentfrequencychannels. We present an iterativefrequency-domainreceiverwithparallelmultiuserdetection. Our performance results show that our receiver is able to copewiththe strong ACI levels (adjacent channel interference) inherent tospectraloverlapping, as well aswiththe interference between the in-phase (I) and quadrature (Q) components of theOQPSKsignals, evenforseverely time-dispersive channels.
|Title of host publication||IEEE International Conference on Signal Processing and Communication Systems|
|Publication status||Published - 1 Jan 2009|
|Event||3rd International Conference on Signal Processing and Communication Systems (ICSPCS'09) - |
Duration: 1 Jan 2009 → …
|Conference||3rd International Conference on Signal Processing and Communication Systems (ICSPCS'09)|
|Period||1/01/09 → …|