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

Brante, Glauber; Souza, Richard Demo; Pellenz, Marcelo Eduardo

doi:10.1186/1687-1499-2011-57

Cited by 5 publications

(6 citation statements)

References 31 publications

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“…Fractional incremental relaying (FIR) was proposed by H.Long,K zheng et al [16] . G G de Oliveira Brante, R.D Souza et al [17] also studied in detail about FIR in 2011. They termed FIR as cooperative partial retransmission in their work.…”

Section: Fractional Incremental Relaying (Fir)mentioning

confidence: 99%

“…Then in the year 2009, H Long, Kan Zheng [16] et al used fractional incremental relaying protocol as a modification of existing incremental relaying protocols. And Brante, Souza et al [17] further considered incremental relaying protocol based on fractional incremental relaying and mentioned it as cooperative partial retransmission scheme in their research paper by 2011. Selective fractional incremental relaying (SFIR) is the other protocol which is used in incremental relaying.…”

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confidence: 99%

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A Survey on Incremental Relaying Protocols in Cooperative Communication

.¹

2014

IJRET

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Cooperative communication is one of the latest techniques in wireless communication to form virtual antenna arrays. Cooperative communication is an alternative method for MIMO (Multiple input multiple output) system. This scheme assumes TDMA (Time division multiple access) channel accessing and divides the communication into two phases which includes direct transmission and retransmission by the relay terminal. A few cooperative diversity protocols ,for example fixed relaying, selection relaying and incremental relaying are used in order to perform different sorts of processing by the relay terminals, and combining at the destination terminals. Each diversity protocol exhibits its own unique performance. Fixed relaying can be further classified into amplify and forward (AF) relaying and decode and forward (DF) relaying. In AF , relay users amplifies the signal and retransmits it, and in the case of DF, the relay users decodes and retransmits the signal. The Selection relaying is performed by taking the fading coefficient into account. In this report, the recent works on incremental relaying protocol has been summarized. Incremental relaying is based on the feedback mechanism. In this scheme, relay users perform retransmission only if needed, based on the received SNR (Signal to noise ratio) or decoding error that occurs during direct transmission. It is used in cooperative communication in order to attain efficient use of degrees of freedom and to overcome bandwidth inefficiency. The authors have presented a number of protocols such as Incremental selection amplify and forward (ISAF), Joint incremental selection relaying (JISR), Fractional Incremental relaying (FIR), Selective Fractional Incremental relaying (SFIR) and Efficient Incremental relaying (EIR).

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Section: Fractional Incremental Relaying (Fir)mentioning

confidence: 99%

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confidence: 99%

A Survey on Incremental Relaying Protocols in Cooperative Communication

.¹

2014

IJRET

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“…Generally, two types of coding are considered at the relay node, repetition coding and parallel coding. In parallel coding DF (PC‐DF), the relay transmits complementary parity bits of that transmitted by the source, for which the codes need to be specifically designed and code/information combination needs to be conducted at the destination to recover the information, which largely increases the complexity at the relay and destination . Whereas with repetition coding, the relay just repeats the coding process at the source, and simple maximum ratio combination can be used at the destination.…”

Section: Introductionmentioning

confidence: 99%

“…Despite the advantage of parallel coding, the complexity in coding and combination makes it apart from practice. As a good candidate of ‘cheap’ relaying schemes, repetition coding DF (RC‐DF) with improved performance has been extensively investigated . Most are based on the selective and incremental relaying proposed in , both need a feedback channel.…”

Section: Introductionmentioning

confidence: 99%

A novel cooperative transmission scheme based on superposition coding and partial relaying

Shi

Yang

Zhu

2013

Int J Communication

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SUMMARY This paper considered the single relay system and proposed a novel repetition coding decode‐and‐forward (DF) cooperative transmission scheme on the basis of superposition coding and partial relaying. In the proposed scheme, the link disparity due to the geometry of the relay network is emphasized, and only a fraction of the information is transmitted in relay mode with the rest being transmitted directly, which benefits from the utility of superposition coding (SC) in broadcast situation. The proposed scheme is analyzed in two cases, one assumes full channel state information at the source (full CSIS), the other with only mean gain of each link known by the source (partial CSIS). For both cases, the optimal design of system parameters is considered. We investigate the achievable rate and expected rate performance for these two cases, respectively. The proposed schemed is well compared with conventional repetition coding DF, parallel coding DF, as well as another promising superposition coding relaying. It is concluded that, by designing protocols that orients to certain network geometry, better trade‐off between performance and complexity can be obtained. The analysis reveals that the gap between conventional repetition and parallel coding is largely mitigated by the proposed scheme, quite for the scenario that the relay locates relatively but not extremely closer to the source, at moderate SNR regime for both partial and full CSIS cases. The proposed scheme becomes more beneficial in severe path loss attenuation scenario. Copyright © 2013 John Wiley & Sons, Ltd.

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“…Cooperative diversity is an overwhelming research topic in wireless networks [1][2][3][4][5][6]. The notion of cooperative communications is to enable transmit and receive cooperation at user level by forming virtual multiple-inputmultiple-output (MIMO) system, so that the overall performance including power efficiency and communications reliability can be improved greatly.…”

Section: Introductionmentioning

confidence: 99%

Tight performance bounds for two-way opportunistic amplify-and-forward wireless relaying networks with TDBC protocols

Jia

Yang

2011

J Wireless Com Network

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Based on amplify-and-forward network coding (AFNC) protocol, the outage probability and ergodic capacity of two-way network coding opportunistic relaying (TWOR-AFNC) systems are investigated as well as the corresponding closed-form solutions. For the TWOR-AFNC systems, it is investigated under two scenarios, namely, the TWOR-AFNC systems without direct link (TWOR-AFNC-Nodir) and the TWOR-AFNC systems with direct link (TWOR-AFNC-Dir). First, we investigate TWOR-AFNC-Nodir systems by employing the approximate analysis in high SNR, and obtain closed-form solutions to the cumulative distribution function (CDF) and the probability density function (PDF) of the instantaneous end-to-end signal-to-noise ratio (SNR) with very simple expressions. The derived simple expressions are given by defining an equivalent variable ω eq-k (θ), 2 ≤ θ ≤ 3. When θ = 2, the derived results are the tight lower bounds to CDF and PDF. The sequent simulation demonstrates that the derived tight lower bounds are also very effective over the entire SNR region though which the results are derived in high SNR approximation. Then, with the derived tight closed-form lower bound solutions (θ = 2) in TWOR-AFNC-Nodir systems, we investigate TWOR-AFNC-Dir systems as well as the overall comparison of the outage probability and the ergodic capacity between the two system models. The comparison analysis performed over path loss model basis shows that, in urban environment, due to utilizing the direct link the TWOR-AFNC-Dir outperform considerably the TWOR-AF-Nodir systems. However, when the value of path loss exponent is relatively large, the achievable gain is very small and the direct link can be omitted. In this case, the TWOR-AFNC-Dir model can be displaced by TWOR-AFNC-Nodir model having lower implementation complexity.

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

Cited by 5 publications

References 31 publications

A Survey on Incremental Relaying Protocols in Cooperative Communication

A Survey on Incremental Relaying Protocols in Cooperative Communication

A novel cooperative transmission scheme based on superposition coding and partial relaying

Tight performance bounds for two-way opportunistic amplify-and-forward wireless relaying networks with TDBC protocols

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