Refined channel estimation for coherent detection of turbo codesover flat-fading channels |
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| Authors: | Valenti M.C. Woerner B.D. |
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| Affiliation: | Mobile & Portable Radio Res. Group, Virginia Polytech. Inst. & State Univ., Blacksburg, VA; |
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| Abstract: | Channel state information is required for the coherent detection and decoding of turbo codes transmitted over flat-fading channels. A channel estimation technique suitable for turbo codes is presented. The technique uses pilot symbols to obtain initial channel estimates, and refines the estimates after each iteration of the turbo decoder |
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