Search results for "Selective Repeat ARQ"

showing 7 items of 7 documents

ARQ Aware Scheduling for the IEEE 802.16 Base Station

2008

The IEEE 802.16 technology defines the ARQ mechanism that enables a connection to resend data at the MAC level if an error is detected. In this paper, we analyze the ARQ aware scheduling for the 802.16 base station. In particular, we consider how the BS scheduler can account for the ARQ block size, absence of the ARQ block rearrangement, and the ARQ transmission window. We propose a set of constraints that can be applied to any base station scheduler algorithm. To test them, we run a number of simulation scenarios. The simulations results confirm that the ARQ aware scheduling can improve the overall performance.

Go-Back-N ARQIEEE 802Computer sciencebusiness.industryAutomatic repeat requestComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSReal-time computingHybrid automatic repeat requestData_CODINGANDINFORMATIONTHEORYWiMAXScheduling (computing)Selective Repeat ARQBase stationSliding window protocolbusinessError detection and correctionComputer network2008 IEEE International Conference on Communications
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Performance analysis of the ieee 802.16 arq mechanism

2007

The IEEE 802.16 technology defines the ARQ mechanism that enables a connection to resend data at the MAC level if an error is detected. In this paper, we analyze the key features and parameters of the 802.16 ARQ mechanism. In particular, we consider a choice for the ARQ feedback type, an algorithm to build block sequences, a scheduling of the ARQ feedbacks and retransmissions, the ARQ block rearrangement, ARQ transmission window and ARQ block size. We run a number of simulation scenarios to study these parameters and how they impact a performance of application protocols. The simulation results reveal that the ARQ mechanism and its correct configuration play an important role in transmittin…

Go-Back-N ARQIEEE 802Computer sciencebusiness.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSHybrid automatic repeat requestData_CODINGANDINFORMATIONTHEORYScheduling (computing)Selective Repeat ARQSliding window protocolWirelessError detection and correctionbusinessComputer networkProceedings of the 10th ACM Symposium on Modeling, analysis, and simulation of wireless and mobile systems
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On ARQ feedback intensity of the IEEE 802.16 ARQ mechanism

2008

The IEEE 802.16 standard defines the ARQ mechanism as a part of the MAC layer. The functioning of the ARQ mechanism depends on a number of parameters. The IEEE 802.16 specification defines them but it does not provide concrete values and solutions. We ran simulation scenarios to study how the ARQ feedback intensity impacts the performance of application protocols. The simulation results reveal that a low ARQ feedback intensity results only in a marginal improvement. Though it is possible to optimize the ARQ feedback intensity, it is reasonable to rely upon more frequent ARQ feedback messages as they do not result in a performance degradation. At the same time, ARQ connections, which work on…

Go-Back-N ARQIEEE 802business.industryComputer scienceAutomatic repeat requestComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSHybrid automatic repeat requestData_CODINGANDINFORMATIONTHEORYWiMAXSelective Repeat ARQSliding window protocolTelecommunications linkWirelessForward error correctionbusinessError detection and correctionComputer network2008 International Conference on Telecommunications
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Performance Evaluation of the IEEE 802.16 ARQ Mechanism

2007

The IEEE 802.16 technology defines the ARQ mechanism that enables a connection to resend data at the MAC level if an error is detected. In this paper, we analyze the key features and parameters of the ARQ mechanism. In particular, we consider a choice for the ARQ feedback type, a scheduling of the ARQ feedbacks and retransmissions, the ARQ block rearrangement, ARQ transmission window and ARQ block size. We run a number of simulation scenarios to study these parameters and how they impact a performance of application protocols. The simulation results reveal that the ARQ mechanism plays an important role in transmitting data over wireless channels in the IEEE 802.16 networks.

IEEE 802Computer sciencebusiness.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSHybrid automatic repeat requestData_CODINGANDINFORMATIONTHEORYScheduling (computing)Selective Repeat ARQSliding window protocolApplication protocolWirelessbusinessBlock sizeComputer network
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Performance comparison of HARQ and ARQ mechanisms in IEEE 802.16 networks

2008

The IEEE 802.16 technology defines several link level mechanisms to retransmit erroneous data. In this paper we compare the performance of the ARQ and HARQ mechanisms in the IEEE 802.16 networks. Our simulations results show that in general HARQ provides a better performance. However, ARQ can compete successfully with it due to a smaller signaling overhead. Furthermore, since ARQ does not require a dedicated uplink signaling channel for the acknowledgments messages, it results in better resources utilization in the uplink direction.

IEEE 802Computer sciencebusiness.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSHybrid automatic repeat requestData_CODINGANDINFORMATIONTHEORYSelective Repeat ARQPerformance comparisonTelecommunications linkOverhead (computing)Link levelbusinessCommunication channelComputer networkProceedings of the 11th international symposium on Modeling, analysis and simulation of wireless and mobile systems
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ARQ parameters for VoIP in IEEE 802.16 networks

2009

IEEE 802.16 standard defines two data retransmission mechanisms. HARQ provides fast retransmissions in cost of slightly increased overhead. On the contrary, ARQ has less overhead in cost of bit longer delays. It is therefore often used with BE connections. In addition to delay tolerant applications, BE can also be used for real-time services. Therefore, in this paper we analyze the ARQ mechanism and provide guidelines on how to set the ARQ parameters to achieve a good balance between the VoIP delay and packet loss.

IEEE 802business.industryComputer scienceAutomatic repeat requestQuality of serviceRetransmissionComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSHybrid automatic repeat requestData_CODINGANDINFORMATIONTHEORYSelective Repeat ARQPacket lossOverhead (computing)businessComputer network2009 Wireless Telecommunications Symposium
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Analysis and Performance Evaluation of the IEEE 802.16 ARQ Mechanism

2008

The IEEE 802.16 standard defines the ARQ mechanismas a part of the MAC layer. The functioning of the ARQmechanism depends on a number of parameters. The IEEE802.16 specification defines them but it does not provide concrete values and solutions. This paper studies the key features and parameters of the 802.16 ARQ mechanism. In particular, we consider a choice for the ARQ feedback type, an algorithm to build block sequences, the ARQ feedback intensity, a scheduling of the ARQ feedbacks and retransmissions, the ARQ block rearrangement, ARQ transmission window and the ARQ block size. We ran simulation scenarios to study these parameters and how they impact the performance of application protoc…

lcsh:Computer softwareIEEE 802Computer sciencebusiness.industryNS-2ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSData_CODINGANDINFORMATIONTHEORYKey featuresScheduling (computing)Selective Repeat ARQlcsh:QA76.75-76.765ARQApplication protocolIEEE 802.16 WiMAXElectrical and Electronic EngineeringbusinessBlock sizeIEEE 802.16 WiMAX; ARQ; NS-2SoftwareComputer networkData transmissionJournal of Communications Software and Systems
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