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Precoded Sphere Packing Aided Bit-Interleaved Differential Spa ce-Time Coded Modulation Using Iterative Decoding

Precoded Sphere Packing Aided Bit-Interleaved Differential Spa ce-Time Coded Modulation Using Iterative Decoding
Precoded Sphere Packing Aided Bit-Interleaved Differential Spa ce-Time Coded Modulation Using Iterative Decoding
Abstract—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 Eb/N0 = 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 Eb/N0 = 5.5 dB. Index Terms—Differential space-time block code (STBC), EXtrinsic Information Transfer (EXIT) charts, iterative detection, sphere packing.
0018-9545
1311-1316
Wu, Nan
964cdaa3-e2ac-462f-8c54-4e4ef928248b
Alamri, Osamah
292e7399-6cdb-4eb6-b0f4-51f738ea04c1
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Wu, Nan
964cdaa3-e2ac-462f-8c54-4e4ef928248b
Alamri, Osamah
292e7399-6cdb-4eb6-b0f4-51f738ea04c1
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Wu, Nan, Alamri, Osamah, Ng, Soon and Hanzo, Lajos (2008) Precoded Sphere Packing Aided Bit-Interleaved Differential Spa ce-Time Coded Modulation Using Iterative Decoding IEEE Transactions on Vehicular Technology, 57, (1), pp. 1311-1316.

Record type: Article

Abstract

Abstract—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 Eb/N0 = 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 Eb/N0 = 5.5 dB. Index Terms—Differential space-time block code (STBC), EXtrinsic Information Transfer (EXIT) charts, iterative detection, sphere packing.

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Published date: March 2008
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 265907
URI: http://eprints.soton.ac.uk/id/eprint/265907
ISSN: 0018-9545
PURE UUID: 126438c8-a74c-42dd-bb6d-02a038f5c750
ORCID for Soon Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 11 Jun 2008 14:07
Last modified: 18 Jul 2017 07:21

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Contributors

Author: Nan Wu
Author: Osamah Alamri
Author: Soon Ng ORCID iD
Author: Lajos Hanzo ORCID iD

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