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Adaptive hybrid ARQ scheme using concatenated FEC for ATM over wireless links

Adaptive hybrid ARQ scheme using concatenated FEC for ATM over wireless links

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A new scheme for adjusting the code rates of RS (Reed-Solomon) and CPC (complementary punctured convolutional) codes to match the channel conditions is proposed for wireless asynchronous transfer mode (WATM). The main feature of this scheme is that all retransmitted sequences are self-decodable. The proposed scheme increases the error correcting capability of RS and CPC codes and uses different code rates for the header and payload of the ATM cell according to the type of data.

Inspec keywords: adaptive signal processing; error correction codes; asynchronous transfer mode; Reed-Solomon codes; convolutional codes; radio links; forward error correction; multimedia communication; sequences; automatic repeat request

Other keywords: self-decodable sequences; concatenated FEC; CPC codes; channel conditions; wireless asynchronous transfer mode; retransmitted sequences; code rates; adaptive hybrid ARQ scheme; complementary punctured convolutional codes; error correcting capability; RS codes; wireless links; ATM; Reed-Solomon codes

Subjects: Multimedia communications; Radio links and equipment; Signal processing and detection; Codes; Protocols

References

    1. 1)
      • S. Kallel . Complementary punctured convolutional (CPC) codes and theirapplications. IEEE Trans. , 6 , 2005 - 2009
    2. 2)
      • Joe, I.: `An adaptive hybrid ARQ scheme with concatenated FEC codes for wirelessATM', Proc. ACM/IEEE Mobicom '97, September 1997, p. 131–138.
    3. 3)
      • Tesfai, Y.A., Wilson, S.G.: `FEC schemes for ATM traffic over wirelesslinks', Proc. Milcom 96, 1996, p. 948–953.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19981623
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