Link-Adaptive and QoS-Provisioning Cooperative ARQ—Applications to Relay-Assisted Land Mobile Satellite Communications

Mardani, Morteza; Harsini, Jalil S.; Lahouti, Farshad; Eliasi, B.

doi:10.1109/tvt.2011.2151261

Cited by 16 publications

(18 citation statements)

References 34 publications

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“…The author in [16] evaluated the expected waiting time and the sojourn time of packets in the network of queues of cooperative truncated HARQ. A crosslayer approach to design an adaptation scheme over the relay channel in the presence of HARQ is developed in [17] to enhance the system performance for data packet transmission over block-fading relay channels. In [18], two smart HARQ schemes with incremental redundancy were developed for a dual-hop network of two relays implementing cooperative communication.…”

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confidence: 99%

Analysis of Outage Probability and Throughput for Half-Duplex Hybrid-ARQ Relay Channels

Maham

Behnad

Debbah

2012

IEEE Trans. Veh. Technol.

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Abstract-We consider a half-duplex wireless relay network with hybrid-automatic retransmission request (HARQ) and Rayleigh fading channels. In this paper, we analyze the average throughput and outage probability of the multi-relay delaylimited HARQ system with opportunistic relaying scheme in decode-and-forward mode, in which the best relay is selected to transmit the source's regenerated signal. A simple and distributed relay selection strategy is considered for multi-relay HARQ channels. Then, we utilize the non-orthogonal cooperative transmission between the source and selected relay for retransmitting of the source data toward the destination if needed, using spacetime codes. We analyze the performance of the system. We first derive the cumulative density function (CDF) and probability density function (PDF) of the selected relay HARQ channels. Then, the CDF and PDF are used to determine the exact outage probability in the l-th round of HARQ. The outage probability is required to compute the throughput-delay performance of this half-duplex opportunistic relaying protocol. The packet delay constraint is represented by L, the maximum number of HARQ rounds. An outage is declared if the packet is unsuccessful after L HARQ rounds. Furthermore, simple closed-form upper-bounds on outage probability are derived. Based on the derived upperbound expressions, it is shown that the proposed schemes achieve the full spatial diversity order of N + 1, where N is the number of potential relays. Our analytical results are confirmed by simulation results. In addition, simulation show that our proposed scheme can achieve higher average throughput compared to the direct transmission and conventional two-phase relay networks.

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confidence: 99%

Analysis of Outage Probability and Throughput for Half-Duplex Hybrid-ARQ Relay Channels

Maham

Behnad

Debbah

2012

IEEE Trans. Veh. Technol.

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“…Stanojev et al [22] proposed a rate adaptation method to maximize the energy efficiency of a cooperative relay network in a Rayleigh block-fading channel. The rate adaptation to maximize the spectral efficiency was analyzed in cooperative relay networks in [23] and [24] in a Rayleigh blockfading channel. In [23], the only latest retransmitted signal of a packet was used at decoding while dropping the previous signals for the packet, and a predetermined set of MCS levels was used in the analysis.…”

Section: Introductionmentioning

confidence: 99%

HARQ Rate Selection Schemes in a Multihop Relay Network With a Delay Constraint

Kim

Lee

Sung

2015

IEEE Trans. Veh. Technol.

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By minimizing the outage probability, optimization is carried out in this paper to find joint optimal power allocation (OPA) and relay placement (ORP) for multihop relay networks adopting Hybrid Automatic Repeat reQuest (HARQ). Different from previous works, the joint OPA and ORP is analysed under generalized fading channels with the constraint on total transmit power, end-to-end relaying distance and maximum transmission number (delay). The simulation results demonstrate that for different fixed number of nodes and fading models, there are preferred deployments depending on path loss exponent and power retransmission strategy. By employing multiple retransmission round which can improve the reliability and energy efficiency without significant overhead, the end-to-end outage probability is no longer bounded by that of the weaker hop, i.e., the hop with a poor channel condition. The proposed strategy provides a dramatic improvement for the end-to-end outage probability by compensating the channel difference.

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“…According to cross layer design, the truncated cooperative automatic repeat request (C-ARQ) protocol [11] was presented at data link layer based on the adaptive modulation and coding (AMC) at the physical layer for QoS-constrained applications. A novel Medium Access Control (MAC) protocol for ARQ-based [12] was proposed by using network coding techniques for achieving a better network performance in terms of energy efficiency without compromising the offered QoS.…”

Section: Introductionmentioning

confidence: 99%

QoS-aware Opportunistic Cooperative ARQ Mechanism of Sensors Based on Channel state Sensing for Internet of Things

Jin¹,

Li²,

Fan³

et al. 2015

Int. J. Onl. Eng.

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Abstract-It is well known that the performance of Internet of Things application services is easy to be affected by internal noise of sensor, external environment interference and constriction of system resource. In order to solve the above problems, we studied the characteristics of bit error rate, outage ratio, signal to noise, and scale of relay sensors with channel state to choose the optimal transmission control scheme between direct mode and cooperative mode, building upon which we proposed the opportunistic cooperative automatic repeat request (ARQ) mechanism based on the rules and features of throughput ratio, average delay, packet error rate and energy efficiency, in consideration of retransmission time and channel quality. More importantly, the proposed opportunistic cooperative ARQ mechanism could set up the max retransmission time and control the progress of cooperative transmission according to the real-time network and sensor state, as well as Quality of Services (QoS) guarantee requirements of Internet of Things applications. The mathematical analyses and experiment results show that the proposed scheme is superior to the QoS provisioning schemes based on cooperative ARQ alone and direct transmission with channel state alone in terms of reliability, real time performance and life cycle of system, as well as energy efficiency.

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Link-Adaptive and QoS-Provisioning Cooperative ARQ—Applications to Relay-Assisted Land Mobile Satellite Communications

Cited by 16 publications

References 34 publications

Analysis of Outage Probability and Throughput for Half-Duplex Hybrid-ARQ Relay Channels

Analysis of Outage Probability and Throughput for Half-Duplex Hybrid-ARQ Relay Channels

HARQ Rate Selection Schemes in a Multihop Relay Network With a Delay Constraint

QoS-aware Opportunistic Cooperative ARQ Mechanism of Sensors Based on Channel state Sensing for Internet of Things

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