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In performance evaluations of wireless ad hoc networks, both successful data reception and carrier detection probabilities are assumed to be 1 within a circle with certain radius and 0 outside the circle. In real systems, however, those probabilities are gradually changes from 1 to 0 as the distance between a terminal and access point increases. In this paper, we evaluate the throughput of wireless...
An adaptive modulation in OFDM transmission is an effective scheme in order to increase transmission rate. In performing adaptive modulation, the transmitter must transmit allocation information of modulation scheme as packet header in order for receiver to demodulate symbols exactly. When different modulation scheme is allocated to each sub-carrier according to its channel state, transmission of...
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