Iterative decision-feedback differential demodulation of bit-interleaved coded MDPSK for flat Rayleigh fading channels

Lampe, Lutz; Schober, Robert

doi:10.1109/26.935158

Cited by 34 publications

(24 citation statements)

References 42 publications

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“…Since the RRNS code has 8 moduli, the 8 parallel residue streams for DSTF were mapped to 8 subcarriers. The numerical BER is computed from (22). Fig.…”

Section: Resultsmentioning

confidence: 99%

“…1(b). For the first iteration, there are no previous decisions available, we use CDM as in [30], [25], [22]. For further iterations, re-modulated fed back matrix symbols from previous iterations are used to calculate the bit LLR values for N > 2 observation period as in (12) to (14).…”

Section: Chase Like Rrns Decodermentioning

confidence: 99%

“…A less complex but suboptimal decision-feedback differential modulation (DFDM) scheme was proposed for single antenna [21], [22] and STBC [23]- [26]. It was shown that increasing diversity can eliminate the flooring effect [25].…”

Section: Introductionmentioning

confidence: 99%

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On performance of residue number system coded differential space-time-frequency coding

Akol

Takawira

2007

Africon 2007

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Space-time-frequency (STF) coding has emerged as a technique for transmitting high data rate over wideband mobile channels. Most of the proposed architectures in the literature maximize diversity gains from one diversity domain and frequency diversity is predominantly dependent on the intrinsic frequency-selective nature of the fading channel. In this paper we propose differential space-time-frequency (DSTF) modulation scheme. The available bandwidth is divided into several orthogonal subbands by a frequency encoder and redundancy is added to maximize coding (frequency) gains. For improved noncoherent detection at the receiver, iterative decoding employing hard decision-feedback of differentially encoded space-time block code on each carrier is concatenated with an outer frequency encoder. It is shown through analytical expressions that with appropriate code design, the proposed DSTF coding scheme can maximize the diversity gains over space, time, and frequency domains.

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“…Since the RRNS code has 8 moduli, the 8 parallel residue streams for DSTF were mapped to 8 subcarriers. The numerical BER is computed from (22). Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Chase Like Rrns Decodermentioning

confidence: 99%

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On performance of residue number system coded differential space-time-frequency coding

Akol

Takawira

2007

Africon 2007

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“…Figure 9 shows the BER performance of DMCDD compared to CDD with pilot symbols inserted in every fourth subcarrier. A reference curve for single antenna operation with differential modulation is also shown which allows a comparison with two antenna operation to be this problem can be found by applying the iterative decoding with the decision-feedback differential modulation suggested in [8].…”

Section: à3mentioning

confidence: 99%

Spectrally efficient transmit diversity scheme for differentially modulated multicarrier transmissions

Allen

Said

Bauch³

et al. 2005

IEE Proc., Commun.

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Cyclic delay diversity is a simple, yet effective, transmit diversity scheme for multicarrier based transmissions employing coherent digital linear modulation schemes. It is shown that, for satisfactory operation, the scheme requires additional channel estimation overhead compared to single antenna and traditional space-time coded transmissions owing to the inherent increase in frequency selective fading. The authors analyse the additional channel estimation overhead requirement for a Hiperlan #2 style system with two transmit antennas operating in a NLOS indoor environment. The analysis shows that an additional overhead of 500% is required for the candidate system compared to a single antenna system. It is also shown that by employing differential modulation the channel estimation overhead can be eliminated with significant performance improvement compared to a system employing a practical channel estimation scheme. This novel combination, termed 'differentially modulated cyclic delay diversity', is shown to yield a highly spectral efficient, yet simple transmit diversity solution for multi-carrier transmissions.

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“…As a result, the DFDD has a low detection complexity order of O(M ), when detecting a single symbol. The DFDD designed for DPSK was then further extended to fading channels [110], [111] in the context of coded DPSK. The DFDD is considered to be equivalent to the MSDD associated with decision feedback, but the DFDD fails to approach the optimum MSDD detection capability.…”

Section: Non-coherent Detectionmentioning

confidence: 99%

Near-Capacity Wireless System Design Principles

Nguyen

et al. 2015

IEEE Commun. Surv. Tutorials

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Abstract-In this tutorial, the design procedure of nearcapacity channel code design invoking non-binary EXtrinsic Information Transfer (EXIT) charts is illustrated by using design examples of Irregular Concatenated Coding Arrangements (ICCAs) relying on Irregular Convolutional Codes (IrCCs). More specifically, in order to benchmark the near-capacity design examples, both the capacity and the Outage Probability (OP) of the Continuous-input Continuous-output Memoryless Channel (CCMC), of the Discrete-input Continuous-output Memoryless Channel (DCMC) as well as of the Differential Discreteinput Continuous-output Memoryless Channel (D-DCMC) are characterised. Furthermore, the EXIT-chart aided near-capacity design principles are illustrated by detailing the design process of three characteristic prototype schemes, which represent the family of coherent and non-coherent detection based systems as well as Multi-Input Multi-Output (MIMO) systems, respectively. Moreover, the beneficial application of the EXIT-chart based design principle is also demonstrated in the context of cooperative systems using a specific distributed MIMO prototype scheme.

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Iterative decision-feedback differential demodulation of bit-interleaved coded MDPSK for flat Rayleigh fading channels

Cited by 34 publications

References 42 publications

On performance of residue number system coded differential space-time-frequency coding

On performance of residue number system coded differential space-time-frequency coding

Spectrally efficient transmit diversity scheme for differentially modulated multicarrier transmissions

Near-Capacity Wireless System Design Principles

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