{"title":"在离散时间域中保持指定QoS约束的随机建模","authors":"L. Guan, M. Woodward, I. Awan","doi":"10.1109/ICCCN.2004.1401601","DOIUrl":null,"url":null,"abstract":"Quality of service (QoS) is of extreme importance to accommodate the increasingly diverse ranges of services and types of traffic in the Internet, and maintaining the delay at a specified value is a key QoS requirement. In this paper, a two-state Markov-modulated Bernoulli process (MMBP) is set up as our source model. To satisfy some specified delay, we present an analytical model for a discrete-time finite capacity queue, which incorporates two thresholds (L/sub 1/ in state-one and L/sub 2/ in state-two) in the system so that the source can be blocked. If the number of packets in the system reaches the threshold, then the source stops sending the packets, otherwise the source operates normally. That can be considered as an implicit feedback from the queue to the arrival process. In addition, when the arrival process is in a specific state, this information is used to adjust the thresholds L/sub 1/ and L/sub 2/ so that the mean delay through the queue is maintained at some specified value to satisfy QoS requirements.","PeriodicalId":229045,"journal":{"name":"Proceedings. 13th International Conference on Computer Communications and Networks (IEEE Cat. No.04EX969)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Stochastic modelling of maintaining specified QoS constraints in discrete-time domain\",\"authors\":\"L. Guan, M. Woodward, I. Awan\",\"doi\":\"10.1109/ICCCN.2004.1401601\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Quality of service (QoS) is of extreme importance to accommodate the increasingly diverse ranges of services and types of traffic in the Internet, and maintaining the delay at a specified value is a key QoS requirement. In this paper, a two-state Markov-modulated Bernoulli process (MMBP) is set up as our source model. To satisfy some specified delay, we present an analytical model for a discrete-time finite capacity queue, which incorporates two thresholds (L/sub 1/ in state-one and L/sub 2/ in state-two) in the system so that the source can be blocked. If the number of packets in the system reaches the threshold, then the source stops sending the packets, otherwise the source operates normally. That can be considered as an implicit feedback from the queue to the arrival process. In addition, when the arrival process is in a specific state, this information is used to adjust the thresholds L/sub 1/ and L/sub 2/ so that the mean delay through the queue is maintained at some specified value to satisfy QoS requirements.\",\"PeriodicalId\":229045,\"journal\":{\"name\":\"Proceedings. 13th International Conference on Computer Communications and Networks (IEEE Cat. No.04EX969)\",\"volume\":\"48 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings. 13th International Conference on Computer Communications and Networks (IEEE Cat. No.04EX969)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCCN.2004.1401601\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings. 13th International Conference on Computer Communications and Networks (IEEE Cat. No.04EX969)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCCN.2004.1401601","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Stochastic modelling of maintaining specified QoS constraints in discrete-time domain
Quality of service (QoS) is of extreme importance to accommodate the increasingly diverse ranges of services and types of traffic in the Internet, and maintaining the delay at a specified value is a key QoS requirement. In this paper, a two-state Markov-modulated Bernoulli process (MMBP) is set up as our source model. To satisfy some specified delay, we present an analytical model for a discrete-time finite capacity queue, which incorporates two thresholds (L/sub 1/ in state-one and L/sub 2/ in state-two) in the system so that the source can be blocked. If the number of packets in the system reaches the threshold, then the source stops sending the packets, otherwise the source operates normally. That can be considered as an implicit feedback from the queue to the arrival process. In addition, when the arrival process is in a specific state, this information is used to adjust the thresholds L/sub 1/ and L/sub 2/ so that the mean delay through the queue is maintained at some specified value to satisfy QoS requirements.
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