Next Generation Wireless Multiple Access Technology OFDMA and SC - FDMA Performance Analysis

Abstract:

orthogonal frequency division multiple access (OFDMA) and single carrier frequency division multiple access (SC - FDMA) are the two kinds of 4 g wireless multiple access scheme. In the long term evolution (LTE) downlink link access scheme based on OFDMA, at the same time, the uplink access scheme based on SC - FDMA. In this article, we deduced the OFDMA and SC - FDMA basic performance difference, and then demonstrates the comprehensive performance comparisons between them. Theoretical derivation results show that the system capacity is better than that of SC - FDMA OFDMA. Then, we use the numerical simulation results confirm the conclusion. Keywords: OFDMA SC - FDMA basic capacity of the uplink transmission

• Periodical: Applied Mechanics and Materials (Volumes 336-338)
• Pages: 1670-1675
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.336-338.1670
• Online since: July 2013
• Authors: Lin Wan
• Keywords: OFDMA SC - FDMA Basic Capacity of the Uplink Transmission

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