Optimized resource allocation of HSDPA using two group allocation in frequency selective channel

When using an adaptive modulation and coding scheme over multicode CDMA transmission channels, the High Speed Downlink Packet Access (HSDPA) allocates rates equally over parallel channels to provide a wide range of data rates. However, the HSDPA system uses the radio resources inefficiently and suffers from severe performance loss when encountering inter-symbol interference (ISI) over frequency selective channels. This paper proposes a new extended-receiver model and a novel ISI-suppressing linear equalizer for a two group approach whilst nearly doubling the data rate achieved by the HSDPA systems for a given receiver signal-to-noise ratio.