Inspec keywords: greedy algorithms; telecommunication channels; optimisation; OFDM modulation; computational complexity; iterative methods; frequency division multiple access

Other keywords: multiple subchannels; hybrid Hughes-Hartogs power allocation algorithms; bit-allocation mechanism; transmission rate maximisation problem; power constraint; OFDMA systems; discrete solution; iteration updating; computational complexity analysis; greedy algorithms; initial allocation bit vector; water-filling solution; solution characterisation; complexity reduction mechanisms; HH solution; subchannel grouping procedure; system capacity

Subjects: Modulation and coding methods; Optimisation techniques; Multiple access communication