Analysis of OFDMA receiver with carrier frequency offset and common carrier frequency offset (CCFO)

Sabitha Gauni; R. Kumar

doi:10.1117/12.2012465

28 January 2013 Analysis of OFDMA receiver with carrier frequency offset and common carrier frequency offset (CCFO)

Sabitha Gauni, R. Kumar

Proceedings Volume 8760, International Conference on Communication and Electronics System Design; 876028 (2013) https://doi.org/10.1117/12.2012465
Event: International Conference on Communication and Electronics System Design, 2013, Jaipur, India

Abstract

The technique of Orthogonal frequency multiplexing (OFDM) is used to mitigate the multipath effects and to achieve better data rate. When these systems are extended to enable multiple access wireless multimedia communications they are more beneficial. The performance of the OFDM systems degrades with frequency offset and phase offset. The OFDM multiple access (OFDMA) technology allots groups of the OFDM subcarriers allocated to different users for transmission. In this paper we study the interference effects of the individual subcarriers with the neighbouring subcarriers which also plays a role in the system degradation is termed as Multiuser Interference (MUI). The effect of Carrier frequency offset (CFO) on these systems is also taken in account. There are conventional CFO compensation methods for OFDMA systems the CFOs are usually compensated by directly eliminating the intercarrier interference (ICI) caused by the residual CFOs for individual users.

Citation Download Citation

Sabitha Gauni and R. Kumar "Analysis of OFDMA receiver with carrier frequency offset and common carrier frequency offset (CCFO)", Proc. SPIE 8760, International Conference on Communication and Electronics System Design, 876028 (28 January 2013); https://doi.org/10.1117/12.2012465

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