Optimization of Fixed-point Design on the Digital Front End in IEEE 802.16e OFDMA-TDD System 


Vol. 31,  No. 7, pp. 735-742, Jul.  2006


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  Abstract

In this paper, we explain the operation scheme and fixed-point design method of DFE (Digital Front End), which performs DC offset compensation, automatic frequency control, and automatic gain control over the input signal to the UE (User Equipment) receiver of IEEE 802.16e OFDMA-TDD system. Then, we analyze the performance of DFE under ITU-R M. 1225 Veh-A 60㎞/h channel environment. To optimize the fixed-point design of DFE, we reduce the number of bit resulted from calculation without performance degradation, leading to the decreased complexity of the operation in H/W, and design the Loop filter with considering trade-off between the Acquisition time and the Stability.

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  Cite this article

[IEEE Style]

S. Kang, T. Sun, K. Chang, I. Lim, I. Eo, "Optimization of Fixed-point Design on the Digital Front End in IEEE 802.16e OFDMA-TDD System," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 7, pp. 735-742, 2006. DOI: .

[ACM Style]

SeungWon Kang, TaeHyoung Sun, KyungHi Chang, In-Gi Lim, and IkSoo Eo. 2006. Optimization of Fixed-point Design on the Digital Front End in IEEE 802.16e OFDMA-TDD System. The Journal of Korean Institute of Communications and Information Sciences, 31, 7, (2006), 735-742. DOI: .

[KICS Style]

SeungWon Kang, TaeHyoung Sun, KyungHi Chang, In-Gi Lim, IkSoo Eo, "Optimization of Fixed-point Design on the Digital Front End in IEEE 802.16e OFDMA-TDD System," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 7, pp. 735-742, 7. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880