Hybrid ARQ
An Adaptive Layered Hybrid ARQ Scheme for Scalable Video Transmission
... layered hybrid ARQ scheme is performed based on group of pictures ...layered hybrid ARQ scheme in terms of average PSNR of reconstructed video in a wide range of packet loss rate over ...
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Low complexity frequency domain hybrid ARQ chase combining for broadband MIMO CDMA systems
... and hybrid-automatic repeat request (ARQ) protocols play a key role in the evolution of current wireless systems toward high data rate wire- less broadband standards ...In hybrid-ARQ, ...
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A Hybrid ARQ scheme combining erasure codes and selective retransmissions for reliable data transfer in underwater acoustic sensor networks
... selective ARQ in a multihop UASN. The aim of this paper is to design a hybrid ARQ scheme that employs hop by hop erasure coding technique to achieve reliability over each hop in a ...hop ARQ ...
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Position Based Relaying with Hybrid ARQ for Efficient Ad Hoc Networking
... link-layer ARQ- based error ...the hybrid-ARQ-based intra-cluster geographically-informed relay- ing (HARBINGER) protocol (2005) and unifies the concepts of geographic random forwarding (GeRaF) ...
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Irregular repetition code hybrid ARQ in wireless system
... Figure 7 shows BER performance of Hybrid ARQ-EM and Hybrid ARQ-SM. For the Hybrid ARQ-SM system, 16-QAM mapping is used. Meanwhile, EM4-QAM is used when decoder send NACK to ...
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Hybrid ARQ type I based on convolutional code
... Abstract. A Hybrid Automatic Repeat reQuest (HARQ), error control scheme based on a convolutional code for packet transmission over wireless channels was proposed. The analysis of the throughput and bit-error rate ...
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Joint IterativeTx/Rx MMSE-FDE and ISI Cancellation for Single-Carrier Hybrid ARQ with Chase Combining
... We propose a joint iterative transmit/receive (Tx/Rx) minimum mean square error (MMSE) frequency-domain equalization (FDE) and intersymbol interference cancellation (ISIC) suitable for single-carrier (SC) hybrid ...
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Energy efficiency analysis of hybrid ARQ relay assisted schemes in LTE based systems
... of hybrid automatic repeat request (HARQ) protocols such as Chase combining (CC) and incremental redundancy (IR), in a LTE baseband-based half-division duplex relay-assisted ...
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On modelling network coded ARQ based channels
... roundtrip, ARQ is integrated with error correction to overcome the retransmission delay to produce a scheme known as Hybrid ARQ (HARQ) (Wozencraft and Horstein ...SR ARQ scheme is investigated ...
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On Cross Layer Design of AMC Based on Rate Compatible Punctured Turbo Codes
... In this paper, we have extended the cross-layer design combining AMC with HARQ using RCPT codes. To this end, a hybrid FEC/ARQ based on RCPT codes has been assumed. In previous works, the proposed CLD was ...
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Cross-Layer Approach using k-NN Based Adaptive Modulation Coding (AMC) and Incremental Redundancy Hybrid Automatic Repeat Request (IR-HARQ) for {MIMO
... truncated ARQ protocol at the data link ...joint hybrid- ARQ and AMC policy that modifies the number of dimensions (physical resources) used in every ...
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EXPERIMENT NO 3
... HSDPA is based on the same set of technologies as high data rate (HDR) to improve spectral efficiency for data services such as shared downlink packet data channel and high peak data rates using high-order modulation and ...
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Channel aware MAC performance of AMC ARQ based wireless systems
... This paper extends the analytical framework presented in [10] to incorporate the MAC sublayer in the proposed analytical model that now includes a multiple-user-shared channel scenario. Channel-aware-only schedulers have ...
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(E b/N0 ). Various parameters that influence the performance
... result, ARQ scheme is more suitable for data, facsimile or still-image transmissions rather than voice or real-time communication transmissions in which retransmission is ...basic ARQ schemes are the ...
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Multiple ARQ Processes for MIMO Systems
... Automatic repeat request (ARQ) or hybrid ARQ (HARQ). The performance of MCS-based link adaptation largely de- pends on the accuracy of the CQI, which is di ffi cult to main- tain as velocity increases. ...
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Assessment of Antioxidant and Hypnotic Activity of UNANI FORMULATION ARQ GULAB
... Diazepam-induced sleep in mice: The method described by Beretz et al. (21) and modified by Rakotonirina et al. (22) was adopted in this study. Hypnotic effect method based on potentiation of diazepam induced sleeping ...
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ISOLATION OF ARQ SOLUTION TO CONGESTION IN TCP IN DATA CENTER NETWORK
... Abstract: Datacenter Network is having a architecture of client and central system in which an client request is apportioned by several of non-secured data centers, connected through network device(like ...
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Simulating the performance of SW ARQ schemes within molecular communications
... (SW- ARQ) scheme is a method in traditional communications to ensure that information packets are transmitted suc- cessfully between two connected devices[1, ...
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VARIOUS COOPERATIVE DIVERSITY PROTOCOLS
... or hybrid automatic-repeat-request (ARQ), to the relay ...In ARQ, the source retransmits if the destination provides a negative acknowledgment via feedback; in incremental relaying, the relay ...
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ARQ based spectrum sharing with multiple access secondary system
... an ARQ-based spectrum sharing protocol to regulate the credits and the penalties such that secondary spectrum access can be achieved without degrading the primary ...
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