Evaluation of trellis termination strategy for turbo codes in UMTS
(1998) In ETSI SMG2 UMTS L1 Expert Group- Abstract
- This input document proposes a trellis termination startegy for turbo codes in UMTS. The proposal is based upon the fact that the extrinsic information used in the decoding of turbo codes mitigates the effect of a truncated trellis, and that this mitigating effect can be enhanced by imposing certain restrictions on the interleaver design. The simulation parameters used in the comparison bewteen different methods complies with the parameters described in Tdoc SMG2 UMTS-L1 385/98, except in one point: they are not restricted to the reference pseudo-random interleaver provided by HNS. The reason for this is the close interaction between interleaver design and trellis termination. We recommend that the choice of trellis termination method and... (More)
- This input document proposes a trellis termination startegy for turbo codes in UMTS. The proposal is based upon the fact that the extrinsic information used in the decoding of turbo codes mitigates the effect of a truncated trellis, and that this mitigating effect can be enhanced by imposing certain restrictions on the interleaver design. The simulation parameters used in the comparison bewteen different methods complies with the parameters described in Tdoc SMG2 UMTS-L1 385/98, except in one point: they are not restricted to the reference pseudo-random interleaver provided by HNS. The reason for this is the close interaction between interleaver design and trellis termination. We recommend that the choice of trellis termination method and interleaver design should be done together, and not as separate optimizations. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1043789
- author
- Henriksson, Anders ; Hokfelt, Johan LU and Edfors, Ove LU
- organization
- publishing date
- 1998
- type
- Book/Report
- publication status
- published
- subject
- in
- ETSI SMG2 UMTS L1 Expert Group
- pages
- 4 pages
- publisher
- [Publisher information missing]
- report number
- Tdoc SMG2 UMTS-L1 432/98
- language
- English
- LU publication?
- yes
- id
- ab2d09a0-603d-4b6f-ad04-c1b7fffaed4d (old id 1043789)
- date added to LUP
- 2016-04-04 14:26:52
- date last changed
- 2018-11-21 21:20:23
@techreport{ab2d09a0-603d-4b6f-ad04-c1b7fffaed4d, abstract = {{This input document proposes a trellis termination startegy for turbo codes in UMTS. The proposal is based upon the fact that the extrinsic information used in the decoding of turbo codes mitigates the effect of a truncated trellis, and that this mitigating effect can be enhanced by imposing certain restrictions on the interleaver design. The simulation parameters used in the comparison bewteen different methods complies with the parameters described in Tdoc SMG2 UMTS-L1 385/98, except in one point: they are not restricted to the reference pseudo-random interleaver provided by HNS. The reason for this is the close interaction between interleaver design and trellis termination. We recommend that the choice of trellis termination method and interleaver design should be done together, and not as separate optimizations.}}, author = {{Henriksson, Anders and Hokfelt, Johan and Edfors, Ove}}, institution = {{[Publisher information missing]}}, language = {{eng}}, number = {{Tdoc SMG2 UMTS-L1 432/98}}, series = {{ETSI SMG2 UMTS L1 Expert Group}}, title = {{Evaluation of trellis termination strategy for turbo codes in UMTS}}, year = {{1998}}, }