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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Alamri, O. Wang, J. Ng, S.X. Yang, L.-L. Hanzo, L. |
| Copyright Year | 1972 |
| Abstract | Conventional two-stage turbo-detected schemes typically suffer from a Bit Error Rate (BER) floor, preventing them from achieving infinitesimally low BER values, especially, when the inner coding stage is of non-recursive nature. We circumvent this deficiency by proposing a three-stage turbo-detected Sphere Packing (SP) aided Space-Time Block Coding (STBC) STBC-SP scheme, where a rate-1 recursive inner precoder is employed to avoid having a BER floor. The convergence behaviour of this serially concatenated scheme is investigated with the aid of 3D Extrinsic Information Transfer (EXIT) Charts. Furthermore, the capacity of the STBC-SP scheme is determined and an algorithm is proposed for calculating a tighter upper bound on the maximum achievable bandwidth efficiency, based on the EXIT charts of the STBC-SP demapper. The proposed three-stage turbo-detected scheme operates within about 1.0 dB of the capacity and within 0.5 dB of the maximum achievable bandwidth efficiency limit. |
| File Size | 373538 |
| File Format | |
| ISSN | 00906778 |
| Volume Number | 57 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-05-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Convolutional codes Modulation coding Concatenated codes Bit error rate Diversity reception Iterative decoding Bandwidth Block codes Convergence Fading Channel capacity, turbo detection, three-stage concatenated codes, sphere-packing modulation, irregular codes, space-time coding, irregular convolutional codes, iterative detection, coding gain, EXIT charts, three-dimensional EXIT charts, STBC, code design |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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