This paper proposes an adaptive modulation (AM) and a transmit power control (TPC) on
frequency symbol spreading (FSS) based orthogonal frequency division multiplexing …

OFDMA is a technology that enables multiple users to share the same frequency band to
achieve simultaneous multiple connections and high frequency utilization efficiency. Since …

This paper proposes an adaptive modulation on frequency symbol spreading (FSS) based
orthogonal frequency division multiplexing (OFDM) relay system with considering the …