Variable spreading factor-orthogonal frequency and code division et al.

A receiver for use in a variable spreading factor-orthogonal frequency and code division multiplexing (VSF-OFCDM) system, said receiver being arranged to process a received signal having an associated chip rate, said receiver comprising:

• a sequence extension remover for removing a predetermined number of chips from at least one predetermined position of said received signal to form a modified signal;
• a first converter for converting the modified signal from a serial sequence to a parallel sequence;
• a despreader coupled to said first converter for receiving said parallel sequence and for despreading said parallel sequence to derive a group of symbols;
• an orthogonal transform block, coupled to said despreader for transforming said symbols from a first domain to form a transformed signal in a second domain;
• an equalizer block coupled to said transform block for equalizing said transformed signal to reduce channel distortion and form an equalized signal;
• a deinterleaver block coupled to said equalizer block to receive said equalized signal and form a deinterleaved signal;
• and
• a second converter coupled to said deinterleaver block for converting said deinterleaved signal from a parallel sequence to a serial sequence.