The Experts below are selected from a list of 27834141 Experts worldwide ranked by ideXlab platform
Lajos Hanzo - One of the best experts on this subject based on the ideXlab platform.
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Throughput and Delay Analysis of Cognitive Go-Back-N Hybrid Automatic Repeat reQuest Using Discrete-Time Markov Modelling
IEEE Access, 2016Co-Authors: Ateeq Ur Rehman, Chen Dong, Varghese A. Thomas, Lie-liang Yang, Lajos HanzoAbstract:Dataset supporting: Ateeq Ur Rehman et al "Throughput and Delay Analysis of Cognitive Go-Back-N Hybrid Automatic Repeat reQuest Using Discrete-Time Markov Modelling".
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VTC Spring - Performance of Cognitive Hybrid Automatic Repeat reQuest: Go-Back-N
2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016Co-Authors: Ateeq Ur Rehman, Lie-liang Yang, Lajos HanzoAbstract:In this paper, we propose a cognitive Go-Back-N Hybrid Automatic Repeat reQuest (CGBN-HARQ) scheme for a cognitive radio (CR) system to opportunistically transmit data over a primary radio (PR) channel. We model the activity of PR users (PRUs) occupying the PR channel as a Markov chain with two states: `ON' and `OFF'. In order to use the PR channel, the CR system first senses the availability/unavailability of the PR channel. Once it finds that the PR channel is free, the CR system transmits data packets over the PR channel's spectrum, whilst relying on the principles of GBN-HARQ. In this paper, we investigate both the throughput and delay of CGBN-HARQ, with a special emphasis on the impact of various system parameters involved in the scenarios of both perfect and imperfect spectrum sensing. Our studies demonstrate that the activity of PRUs, the transmission reliability of the CR system as well as the number of packets transmitted per time-slot may have a substantial impact on both the throughput and the delay of the CR system.
Y. Hayashida - One of the best experts on this subject based on the ideXlab platform.
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Performance analysis of Go-Back-N ARQ scheme with selective repeat in intra-block
IEEE Transactions on Communications, 2002Co-Authors: Y. Hayashida, N. Sugimachi, A. Maeda, S. FujiiAbstract:The performances of the Go-Back-N ARQ scheme with selective repeat in intra-block (GBN-SR) and revised GBN-SR (Rev-GBN-SR) schemes are analyzed. Using the derived generating function of the service time of a packet, the throughputs of the proposed schemes are compared with that of Benelli's (1986) scheme. It is shown that the proposed Rev-GBN-SR scheme shows good performance in a wider range from low to high packet error rate regions.
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Throughput analysis of tandem-type Go-Back-N ARQ scheme for satellite communications
IEEE Transactions on Communications, 1993Co-Authors: Y. HayashidaAbstract:The tandem-type Go-Back-N (GBN) scheme has been proposed for satellite communications to reduce the long roundtrip delay using the onboard processing of satellites. The author considers the exact analysis of the throughput performance of this scheme and its application to a broadcast communications system such as a point-to-multipoint file transfer system. First, the throughput expression for the point-to-point tandem-type GBN scheme is derived. Second, applying the results of this point-to-point tandem-type GBN scheme to a broadcast (point-to-multipoint) communications system, the relationship of the number of receiving stations to the link bit error rate and the roundtrip propagation delay is shown. >
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Delay performance of Go-Back-N ARQ scheme with Markovian error channel
Proceedings of 2nd IEEE International Conference on Universal Personal Communications, 1Co-Authors: Y. Hayashida, M. KomatsuAbstract:In this paper, the delay performances of the Go-Back-N (GBN) ARQ scheme are considered over the correlated, noisy channel, which is modeled as a two-state Markov chain. By means of a queueing theoretic approach, the generating function of the transmission delay of a frame is derived in terms of the decay factor of a Markov chain. The throughput formula is also expressed. The effect of the decay factor on the delay performance is investigated. It is shown that the approximate formula has a good agreement with a computer simulation.
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WCNC - Throughput analysis of Go-Back-N ARQ scheme with selective repeat in intra-block
WCNC. 1999 IEEE Wireless Communications and Networking Conference (Cat. No.99TH8466), 1Co-Authors: N. Sugimachi, Y. Hayashida, A. Maeda, S. FujiiAbstract:In this paper, we determine an exact formula for the throughput performance of the GBN SR scheme, in which the Go-Back-N ARQ scheme is used for inter-block transmission and the selective repeat scheme is used for intra-block transmission. Using that formula, the throughput performance of GBN SR scheme is compared with that of Benelli's (1986, 1993) scheme in a numerical manner. As a result, it is shown that the throughput performance of the GBN SR scheme is superior to that of Benelli's scheme in a wider range of packet error rate from low to medium, but is inferior at high packet error rates.
R.l. Siqueira - One of the best experts on this subject based on the ideXlab platform.
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Analysis of the Go-Back- $N$ Protocol on Finite-State Markov Rician Fading Channels
IEEE Transactions on Vehicular Technology, 2008Co-Authors: C. Pimentel, R.l. SiqueiraAbstract:This paper develops Gilbert-Elliott channel (GEC) models for a discrete communication channel with flat fading and analyzes the throughput efficiency of the Go-Back-N scheme of the automatic repeat request (ARQ) protocol on GEC models. This protocol performance measure is then applied to determine the range of parameters of the communication system in which the binary error sequence generated by the discrete channel can be approximated by the GEC. The influence of the various parameters of the communication system on the throughput of different ARQ protocols, namely pure ARQ and type-I hybrid ARQ, is evaluated.
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VTC Spring - Analysis of the Go-Back-N Protocol on Finite State Markov Fading Channels
2006 IEEE 63rd Vehicular Technology Conference, 1Co-Authors: C. Pimentel, R.l. SiqueiraAbstract:This work develops finite state channel (FSC) models for a discrete communication channel with flat fading and analyzes the throughput efficiency of the Go-Back-N (GBN) scheme of the automatic repeat request protocol on FSC models. This protocol performance measure is then applied to determine the range of parameters of the communication system in which the binary error sequence generated by the discrete channel can be approximated by two classes of FSC models: First-order Markov and Gilbert-Elliott channel. The influence of the various parameters of the communication system on the throughput of the GBN protocol is evaluated.
S. Fujii - One of the best experts on this subject based on the ideXlab platform.
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Traffic characteristics of Go‐back‐N ARQ scheme with selective repeat in intra‐block
Electronics and Communications in Japan (Part I: Communications), 2002Co-Authors: A. Maeda, Yukuo Hayashida, Nobuyuki Sugimachi, S. FujiiAbstract:This paper discusses the traffic characteristics of the Go-Back-N (GBN)_SR scheme, in which the receiver returns the acknowledge signal blockwise and selective repeat is performed within the retransmission block. First the strict expression for the throughput and the strict expression for the average transmission delay of the blockwise bulk arrival model are derived. Then, the throughput of the GBN_SR scheme and the average transmission delay of the blockwise bulk arrival model are examined by numerical calculation. The average transmission delay of the packetwise bulk arrival model is investigated by simulation. It is shown that the throughput is improved with increasing block size, and that the average transmission delay can be minimized by using the optimal block size, depending on the average packet error rate and the block arrival rate. It is also shown for the packetwise bulk arrival model that there exists a block size which minimizes the average transmission delay, and that the minimum average transmission delay is smaller than in the blockwise bulk arrival model. © 2002 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 86(3): 9–16, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ ecja.10052
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Performance analysis of Go-Back-N ARQ scheme with selective repeat in intra-block
IEEE Transactions on Communications, 2002Co-Authors: Y. Hayashida, N. Sugimachi, A. Maeda, S. FujiiAbstract:The performances of the Go-Back-N ARQ scheme with selective repeat in intra-block (GBN-SR) and revised GBN-SR (Rev-GBN-SR) schemes are analyzed. Using the derived generating function of the service time of a packet, the throughputs of the proposed schemes are compared with that of Benelli's (1986) scheme. It is shown that the proposed Rev-GBN-SR scheme shows good performance in a wider range from low to high packet error rate regions.
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Exact analysis of delay performance of Go‐Back‐N ARQ scheme over multiple parallel channels
Electronics and Communications in Japan Part I-communications, 2001Co-Authors: S. Fujii, Yukuo Hayashida, Masaharu KomatsuAbstract:The Go-Back-N ARQ scheme, which is one of the typical error control methods for data transmission, has been widely used because of its good performance and easier implementation. Most analyses of the throughput and delay performances of the ARQ scheme (including the Go-Back-N) have been carried out for a single channel connecting a pair of a sender and a receiver. This paper gives an exact analysis of the delay performance of a Go-Back-N ARQ scheme, for a simultaneous transmission of multiple frames using multiple parallel channels between a pair of a sender and a receiver. In a discrete-time queueing model, the state of the system is described at each successful slot of frame transmission by using variables (which show the frame queue length and the existence of retransmitting frame) so that the distribution of the frame queue length is obtained from the solutions of the state equations. By using the results of the analysis, the distribution of the transmission delay of frames is obtained. The average delay characteristics are examined by using numerical examples. The results show that the delay performance can be improved by increasing the number of parallel channels. © 2001 Scripta Technica, Electron Comm Jpn Pt 1, 84(9): 27–41, 2001
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WCNC - Throughput analysis of Go-Back-N ARQ scheme with selective repeat in intra-block
WCNC. 1999 IEEE Wireless Communications and Networking Conference (Cat. No.99TH8466), 1Co-Authors: N. Sugimachi, Y. Hayashida, A. Maeda, S. FujiiAbstract:In this paper, we determine an exact formula for the throughput performance of the GBN SR scheme, in which the Go-Back-N ARQ scheme is used for inter-block transmission and the selective repeat scheme is used for intra-block transmission. Using that formula, the throughput performance of GBN SR scheme is compared with that of Benelli's (1986, 1993) scheme in a numerical manner. As a result, it is shown that the throughput performance of the GBN SR scheme is superior to that of Benelli's scheme in a wider range of packet error rate from low to medium, but is inferior at high packet error rates.
Ateeq Ur Rehman - One of the best experts on this subject based on the ideXlab platform.
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Throughput and Delay Analysis of Cognitive Go-Back-N Hybrid Automatic Repeat reQuest Using Discrete-Time Markov Modelling
IEEE Access, 2016Co-Authors: Ateeq Ur Rehman, Chen Dong, Varghese A. Thomas, Lie-liang Yang, Lajos HanzoAbstract:Dataset supporting: Ateeq Ur Rehman et al "Throughput and Delay Analysis of Cognitive Go-Back-N Hybrid Automatic Repeat reQuest Using Discrete-Time Markov Modelling".
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VTC Spring - Performance of Cognitive Hybrid Automatic Repeat reQuest: Go-Back-N
2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016Co-Authors: Ateeq Ur Rehman, Lie-liang Yang, Lajos HanzoAbstract:In this paper, we propose a cognitive Go-Back-N Hybrid Automatic Repeat reQuest (CGBN-HARQ) scheme for a cognitive radio (CR) system to opportunistically transmit data over a primary radio (PR) channel. We model the activity of PR users (PRUs) occupying the PR channel as a Markov chain with two states: `ON' and `OFF'. In order to use the PR channel, the CR system first senses the availability/unavailability of the PR channel. Once it finds that the PR channel is free, the CR system transmits data packets over the PR channel's spectrum, whilst relying on the principles of GBN-HARQ. In this paper, we investigate both the throughput and delay of CGBN-HARQ, with a special emphasis on the impact of various system parameters involved in the scenarios of both perfect and imperfect spectrum sensing. Our studies demonstrate that the activity of PRUs, the transmission reliability of the CR system as well as the number of packets transmitted per time-slot may have a substantial impact on both the throughput and the delay of the CR system.
