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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chen, Y. Parhi, K.K. |
| Copyright Year | 2001 |
| Description | Author affiliation: Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA (Chen, Y.) |
| Abstract | This paper presents a very low complexity block turbo decoder composed of extended Hamming codes. New efficient complexity reduction algorithms are proposed including simplifying the extrinsic information computation and soft inputs updating algorithm. For performance evaluation, [eHamming (32,26,4)]/sup 2/ and [eHamming (64,57,4)]/sup 2/ block turbo code transmitted over an AWGN channel using BPSK modulation are considered. Extra 0.3 dB to 0.4 dB coding gain is obtained if compared with the scheme proposed in Pyndiah et al., (1996), and the hardware overhead is negligible. The complexity of our new block turbo decoder is about ten times less than that of the near-optimum block turbo decoder with a performance degradation of only 0.5 dB. Other schemes such as reduction of test patterns in the Chase algorithm and memory saving techniques are also presented. |
| Starting Page | 171 |
| Ending Page | 175 |
| File Size | 547406 |
| Page Count | 5 |
| File Format | |
| ISBN | 0780372069 |
| DOI | 10.1109/GLOCOM.2001.965101 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2001-11-25 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Turbo codes Iterative decoding Iterative algorithms Testing Binary phase shift keying Hardware Degradation Euclidean distance AWGN channels Modulation coding |
| Content Type | Text |
| Resource Type | Article |
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