Energy Efficient Multiple Access Scheme for Multi-User System with Improved Gain
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Abstract
In this paper we demonstrates development of the energy efficiency (EE) of multi-user multiple-input
multiple-output (MIMO) orthogonal frequency-division multiple access (OFDMA) system, an Energy-efficient multiple
access (EMA) scheme is proposed. It improves EE by selecting either time-division multiple access (TDMA) or spacedivision multiple access (SDMA) based on the no. of users or power consumption. Here, we introduced normalization
process for power in OFDM system to improve the power gain. Numerical results verify that the EE and power gain can
be significantly improved through the proposed EMA scheme.
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