A Coherent - based Symbol Detector for 2.45㎓ LR - WPAN Receiver 


Vol. 31,  No. 2, pp. 176-186, Feb.  2006


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  Abstract

In this paper, we propose an enhanced symbol detector algorithm for 2.45㎓ LR-WPAN(Low-Rate Wireless Personal Area Network) receiver. Because the frequency offset of ±80ppm on 2.45㎓ band is recommended in IEEE 802.15.4 LR-WPAN(Low-Rate Wireless Personal Area Network) specification, a symbol detector algorithm having stable operation in the channel environment with large frequency offset is required. For robustness to the frequency offset, non-coherent detection-based symbol detector algorithm is typically applied in the LR-WPAN receiver modem. However, the noncoherent symbol detector has increased performance degradation and hardware complexity due to squaring loss of I/Q squaring operation. Therefore we propose a coherent detection-based symbol detector algorithm with frequency offset compensation using a preamble symbol. The proposed algorithm is more suitable for LR-WPAN receiver aimed at low-cost, low-power and low-complexity than the non-coherent symbol detector, since it can reduce performance degradation due to squaring loss of I/Q squaring operation and implementation complexity. Simulation results show that the proposed algorithm has performance improvement of about 1㏈ in various channel environments.

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  Cite this article

[IEEE Style]

J. Han, J. Do, T. Park, H. Choi, "A Coherent - based Symbol Detector for 2.45㎓ LR - WPAN Receiver," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 2, pp. 176-186, 2006. DOI: .

[ACM Style]

Jung-Su Han, Joo-Hyun Do, Tha-Joon Park, and Hyung-Jin Choi. 2006. A Coherent - based Symbol Detector for 2.45㎓ LR - WPAN Receiver. The Journal of Korean Institute of Communications and Information Sciences, 31, 2, (2006), 176-186. DOI: .

[KICS Style]

Jung-Su Han, Joo-Hyun Do, Tha-Joon Park, Hyung-Jin Choi, "A Coherent - based Symbol Detector for 2.45㎓ LR - WPAN Receiver," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 2, pp. 176-186, 2. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880