The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Muitas aplicações emergentes, como sistemas avançados de telemedicina e vigilância, exigem sensores para fornecer conteúdo multimídia com nível preciso de aprimoramento de QoS. Minimizar a energia em redes de sensores tem sido uma área de pesquisa muito explorada, mas garantir QoS em redes de sensores ainda permanece uma questão em aberto. Nesta carta propomos uma abordagem cross-layer combinando camadas de rede e MAC, para melhoria de QoS em redes de sensores multimídia sem fio. Na camada de rede, uma estimativa estatística dos parâmetros sensoriais de QoS é realizada e uma solução algorítmica genética quase ótima é proposta para resolver o problema de roteamento de QoS NP-completo. Por outro lado, o objetivo do algoritmo MAC proposto é realizar a classificação de pacotes baseada em QoS e a adaptação automática da janela de contenção. Os resultados da simulação demonstram que o protocolo proposto é capaz de fornecer menor atraso e melhor rendimento, ao custo de um consumo razoável de energia, em comparação com outros protocolos sensoriais de QoS existentes.
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Navrati SAXENA, Abhishek ROY, Jitae SHIN, "Cross-Layer Algorithms for QoS Enhancement in Wireless Multimedia Sensor Networks" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 8, pp. 2716-2719, August 2008, doi: 10.1093/ietcom/e91-b.8.2716.
Abstract: A lot of emerging applications like advanced telemedicine and surveillance systems, demand sensors to deliver multimedia content with precise level of QoS enhancement. Minimizing energy in sensor networks has been a much explored research area but guaranteeing QoS over sensor networks still remains an open issue. In this letter we propose a cross-layer approach combining Network and MAC layers, for QoS enhancement in wireless multimedia sensor networks. In the network layer a statistical estimate of sensory QoS parameters is performed and a near-optimal genetic algorithmic solution is proposed to solve the NP-complete QoS-routing problem. On the other hand the objective of the proposed MAC algorithm is to perform the QoS-based packet classification and automatic adaptation of the contention window. Simulation results demonstrate that the proposed protocol is capable of providing lower delay and better throughput, at the cost of reasonable energy consumption, in comparison with other existing sensory QoS protocols.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.8.2716/_p
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@ARTICLE{e91-b_8_2716,
author={Navrati SAXENA, Abhishek ROY, Jitae SHIN, },
journal={IEICE TRANSACTIONS on Communications},
title={Cross-Layer Algorithms for QoS Enhancement in Wireless Multimedia Sensor Networks},
year={2008},
volume={E91-B},
number={8},
pages={2716-2719},
abstract={A lot of emerging applications like advanced telemedicine and surveillance systems, demand sensors to deliver multimedia content with precise level of QoS enhancement. Minimizing energy in sensor networks has been a much explored research area but guaranteeing QoS over sensor networks still remains an open issue. In this letter we propose a cross-layer approach combining Network and MAC layers, for QoS enhancement in wireless multimedia sensor networks. In the network layer a statistical estimate of sensory QoS parameters is performed and a near-optimal genetic algorithmic solution is proposed to solve the NP-complete QoS-routing problem. On the other hand the objective of the proposed MAC algorithm is to perform the QoS-based packet classification and automatic adaptation of the contention window. Simulation results demonstrate that the proposed protocol is capable of providing lower delay and better throughput, at the cost of reasonable energy consumption, in comparison with other existing sensory QoS protocols.},
keywords={},
doi={10.1093/ietcom/e91-b.8.2716},
ISSN={1745-1345},
month={August},}
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TY - JOUR
TI - Cross-Layer Algorithms for QoS Enhancement in Wireless Multimedia Sensor Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 2716
EP - 2719
AU - Navrati SAXENA
AU - Abhishek ROY
AU - Jitae SHIN
PY - 2008
DO - 10.1093/ietcom/e91-b.8.2716
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2008
AB - A lot of emerging applications like advanced telemedicine and surveillance systems, demand sensors to deliver multimedia content with precise level of QoS enhancement. Minimizing energy in sensor networks has been a much explored research area but guaranteeing QoS over sensor networks still remains an open issue. In this letter we propose a cross-layer approach combining Network and MAC layers, for QoS enhancement in wireless multimedia sensor networks. In the network layer a statistical estimate of sensory QoS parameters is performed and a near-optimal genetic algorithmic solution is proposed to solve the NP-complete QoS-routing problem. On the other hand the objective of the proposed MAC algorithm is to perform the QoS-based packet classification and automatic adaptation of the contention window. Simulation results demonstrate that the proposed protocol is capable of providing lower delay and better throughput, at the cost of reasonable energy consumption, in comparison with other existing sensory QoS protocols.
ER -