Performance of soft metrics for convolutional coded asynchronous fast FHSS-MA networks using BFSK under Rayleigh fading |
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Authors: | Youhan Kim Cheun K |
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Affiliation: | Div. of Electr. & Comput. Eng., Pohang Univ. of Sci. & Technol., South Korea; |
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Abstract: | Performance of robust soft decoding metrics is examined for use in convolutional coded asynchronous fast frequency-hop spread-spectrum multiple-access networks using binary frequency-shift keying under Rayleigh fading channels. For comparison, maximum-likelihood metrics based on a Gaussian approximation are derived. Significant gains are observed compared to hard decision decoding by using appropriate soft metrics. |
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