VNU-UET Repository: No conditions. Results ordered -Date Deposited. 2024-03-29T10:28:49ZEPrintshttp://eprints.uet.vnu.edu.vn/images/sitelogo.pnghttps://eprints.uet.vnu.edu.vn/eprints/2016-12-23T14:11:54Z2016-12-23T14:11:54Zhttp://eprints.uet.vnu.edu.vn/eprints/id/eprint/2280This item is in the repository with the URL: http://eprints.uet.vnu.edu.vn/eprints/id/eprint/22802016-12-23T14:11:54ZMAC-aware rate control for transport protocol in multihop wireless networksTransport layer performance in IEEE 802.11 multihop wireless networks (MHWNs) has been greatly challenged by wireless medium characteristics and multihop nature which are the sources of several types of packet loss including collision,
random channel errors and route failures. Rate control transport protocols, the candidates for multimedia streaming applications suffer from high loss rates and end-to-end delay in MHWNs. A common research direction is that the rate control mechanisms at transport layer should be aware of MAC layer contention to keep the network load at a reasonable ;evel. In this paper, we introduce a new MAC metric which reflects the contention and congestion levels more accurately. The metric is then used to improve the rate control mechanism of a rate-based transport protocol in MHWNs. The simulation results show that the adapted mechanism introduces significant performance improvement in MHWNs.Le Minh Duongminhdl@vnu.edu.vnVeronique Vequeveronique.veque@u-psud.frL. Zitounel.zitoune@esiee.fr2016-12-23T14:11:08Z2016-12-23T14:11:08Zhttp://eprints.uet.vnu.edu.vn/eprints/id/eprint/2279This item is in the repository with the URL: http://eprints.uet.vnu.edu.vn/eprints/id/eprint/22792016-12-23T14:11:08ZA Medium Access Delay MAC aware Metric for Multihop Wireless NetworksInternet predominant transport protocols, such as TCP and TFRC, face performance degradation in Multihop Wireless Networks (MHWNs) because of the high loss and link failure rates. Many solutions have been proposed to improve the transport layer operation. These solutions are either based on network state estimation or use information from MAC layer (called MAC metrics) in a cross-layer manner to better comprehend the network state. In this paper, we define a new MAC metric called Medium Access Delay (MAD) to better reflect the network state, and provide a comparative study of MAD over other pertinent MAC metrics, their expected usage and measurement methods at MAC layer. We also investigate the behaviors of MAC metrics through several experiments in order to reveal their effectiveness in reflecting network events such as contention, collision and loss.Le Minh Duongminhdl@vnu.edu.vnVeronique Vequeveronique.veque@u-psud.frL. Zitounel.zitoune@esiee.fr2016-12-23T06:37:04Z2016-12-23T06:37:04Zhttp://eprints.uet.vnu.edu.vn/eprints/id/eprint/2281This item is in the repository with the URL: http://eprints.uet.vnu.edu.vn/eprints/id/eprint/22812016-12-23T06:37:04ZImprovement for Rate-Based Protocols in Multihop Wireless NetworksTransport layer performance in IEEE 802.11 multihop wireless networks (MHWNs) has been greatly challenged by wireless medium characteristics and multihop nature which induce several types of packet loss including collision, random
channel errors and route failures. In this paper, we propose
a novel rate control scheme, called Bi-Metric Rate Control
(BMRC), which regulates efficiently the source rate in MHWNs.
BMRC’s design is based on two MAC metrics: the Medium Access Delay used to detect the network contention level, and the
Average Transmission Time used to estimate the effective packet sending rate by which the network will not be overloaded. The simulation results show that the adapted mechanism introduces significant performance improvement in terms of fairness, packet loss rate and delay in MHWNs.Le Minh Duongminhdl@vnu.edu.vnL. Zitounel.zitoune@esiee.frVeronique Vequeveronique.veque@u-psud.fr2016-12-19T16:51:10Z2016-12-19T16:51:10Zhttp://eprints.uet.vnu.edu.vn/eprints/id/eprint/2278This item is in the repository with the URL: http://eprints.uet.vnu.edu.vn/eprints/id/eprint/22782016-12-19T16:51:10ZCross layer metrics for improving transport protocols in multihop wireless networksOur work concentrates on improving the performance of transport protocols in multihop wireless networks. We present different metrics from link and physic layers to improve the performance of TCP congestion control. This paper introduces a classification of cross layer metrics used to improve the transport level.Le Minh Duongminhdl@vnu.edu.vnVeronique Vequeveronique.veque@u-psud.frL. Zitounel.zitoune@esiee.fr