Distributed turbo coded diversity for relay channel

Zhao, Bin; Valenti, Matthew C.

doi:10.1049/el:20030526

Cited by 326 publications

(202 citation statements)

References 3 publications

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“…The remaining components of the DN's receiver are similar to the those of the RN, hence they affect the overall complexity in a similar way. When designing an iterative decoding aided cooperative system, the distributed turbo coding scheme advocated in [12] is attractive, since it is capable of simultaneously benefiting from both the interleaving-induced increased time-diversity gain at the RN, as well as from the iterative decoding gain at the DN attained by the iterative information exchange between the direct and relayed versions of the same codeword. Naturally, the improved system performance is achieved at the cost of increasing the complexity imposed by employing an extra decoder stage.…”

Section: Relay-aided Siso-msdsd Assisted Iterative Decoding For Smentioning

confidence: 99%

The Capacity of Successive DF Relaying and Using Soft Multiple-Symbol Differential Sphere Detection

Wang

Hanzo

2011

2011 IEEE Global Telecommunications Conference - GLOBECOM 2011

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Abstract-The conventional single-relay aided two-phase cooperative network employing a so-called soft-input soft-output multiplesymbol differential sphere detection (SISO-MSDSD) and operating in a distributed turbo decoding mode incurs a high complexity and imposes a 50% half-duplex relaying induced throughput loss. In this paper, we combat both of these critical problems. We commence by evaluating the Discrete-input Continuous-output Memoryless Channel (DCMC) capacity of the Decode-and-Forward (DF) based successive relaying aided networks (SRAN) as our theoretical benchmark. Then a relayaided SISO-MSDSD is designed, which is then incorporated in the DF based SRAN. As our novel contribution, we demonstrate that the proposed transceiver is capable of significantly reducing the system's complexity, whilst recovering the 50% half-duplex relaying induced throughput loss. The system is capable of performing within 2.9 dB from the corresponding noncoherent DCMC capacity.

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Section: Relay-aided Siso-msdsd Assisted Iterative Decoding For Smentioning

confidence: 99%

The Capacity of Successive DF Relaying and Using Soft Multiple-Symbol Differential Sphere Detection

Wang

Hanzo

2011

2011 IEEE Global Telecommunications Conference - GLOBECOM 2011

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“…Inspired by the classic turbo codes used in non-cooperative communication scenarios, Distributed Turbo Codes (DTC) [6] have been proposed for "distributed MIMO" systems, which benefit from a turbo processing gain. However, DTCs suffer from having an imperfect communication link between the source and relay nodes.…”

Section: A Backgroundmentioning

confidence: 99%

Successive Relaying Aided Near-Capacity Irregular Distributed Space-Time Coding

Kong

Maunder

et al. 2009

GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference

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Abstract-In this paper, an Irregular Distributed Space-Time (Ir-DST) coding scheme is studied in the context of a twin-relay aided network in which the successive relaying protocol is employed. A tight upperbound of the successive relaying aided network's capacity is given. The distributed codes at the source and relays are jointly designed with the aid of EXtrinsic Information Transfer (EXIT) charts for the sake of high-integrity operation at Signal-to-Noise Ratios (SNRs) close to the corresponding network's capacity. Finally, it is shown that our proposed Ir-DST coding scheme is capable of near-capacity cooperative communications in the successive relaying aided network, which is an explicit benefit of our joint source-and-relay mode design.

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“…However, to achieve the expected gains, the antennas must be properly spaced, which may be impractical in small-sized devices. Cooperative communication [3][4][5][6][7][8][9][10] emerged as an alternative to the use of multiple antennas. Probably, the two most known cooperative protocols are the amplify-and-forward (AF) and the decode-and-forward (DF) [3].…”

Section: Introductionmentioning

confidence: 99%

“…Later, the association of error correcting codes with AF and DF protocols showed to considerably increase the performance [6][7][8][9][10][11], giving rise to what is called coded cooperation. Convolutional codes [6,8], turbo codes [7,8] and LDPC codes [9][10][11] are some important coding techniques that were associated with the relay channel.…”

Section: Introductionmentioning

confidence: 99%

Cooperative partial retransmission scheme in incremental decode-and-forward relaying

Brante

Souza

Pellenz

2011

J Wireless Com Network

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In this paper, we present a novel hybrid automatic repeat request (HARQ) scheme for cooperative communication systems, called cooperative partial retransmission (CPR). The method is based on the retransmission of only a fraction of the original code word by the cooperating nodes. Based on the outage analysis, we derive the theoretical throughput expressions that are compared to numerical simulations using LDPC codes, showing that CPR outperforms regular cooperative HARQ techniques. Additionally, we show that the CPR throughput, even using a single relay, may be considerably larger than the throughput of a regular cooperative HARQ scheme using multiple relays. Finally, the energy consumption analysis of the schemes shows that CPR consumes less energy than regular cooperative HARQ, mainly due to the shorter retransmissions.

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Distributed turbo coded diversity for relay channel

Cited by 326 publications

References 3 publications

The Capacity of Successive DF Relaying and Using Soft Multiple-Symbol Differential Sphere Detection

The Capacity of Successive DF Relaying and Using Soft Multiple-Symbol Differential Sphere Detection

Successive Relaying Aided Near-Capacity Irregular Distributed Space-Time Coding

Cooperative partial retransmission scheme in incremental decode-and-forward relaying

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