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Precoded sphere-packing-aided bit-interleaved differential space-time coded modulation using iterative decoding

Record type: Article

In this treatise, we investigate a precoded and sphere packing (SP)-aided bit-interleaved differential space-time coded modulation scheme using iterative decoding. The amalgamated design and interworking of the SP, differential encoding, and iteratively detected bit-interleaved schemes are investigated. A rate-1 precoder is integrated into the system, where iterative decoding is carried out between the precoder and an outer channel code. We identify the optimal SP mapping and investigate the convergence behavior of this concatenated scheme with the aid of EXtrinsic Information Transfer (EXIT) charts. Furthermore, we consider various rate-1 precoders having different memory sizes and demonstrate that the memory-1 precoder performs best when an RSC(2,1,5) is employed as the outer code, creating an open EXIT chart convergence tunnel at E-b/N-0 = 6 dB. On the other hand, the memory-3 precoder is more suitable for the proposed system employing irregular convolutional codes, resulting in an infinitesimally low bit error rate at E-b/N-0 = 5.5 dB.

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Citation

Wu, N, Alamri, O, Ng, SX and Hanzo, L (2008) Precoded sphere-packing-aided bit-interleaved differential space-time coded modulation using iterative decoding IEEE Transactions On Vehicular Technology, 57, pp. 1311-1316.

More information

Published date: 2008
Additional Information: Imported from ISI Web of Science
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 269191
URI: http://eprints.soton.ac.uk/id/eprint/269191
PURE UUID: 5ed39ae3-2efc-4198-b695-ae97e83a7316

Catalogue record

Date deposited: 21 Apr 2010 07:46
Last modified: 18 Jul 2017 06:51

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Contributors

Author: N Wu
Author: O Alamri
Author: SX Ng
Author: L Hanzo

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