【正文】 XXXX 學院 畢業(yè)設計（論文）外文參考文獻譯文本 2020 屆 原文出處 A Novel Crosslayer Qualityofservice Model For Mobile AD hoc Network 畢業(yè)設計 (論文 )題目 基于 COMNETIII的局域網的規(guī)劃與設計 院（系） 電氣與電子信息學院 專業(yè)名稱 電子信息工程 學生姓名 學生學號 指導教師 A Novel Crosslayer Qualityofservice Model For Mobile AD hoc Network Leichun Wang, Shihong Chen, Kun Xiao, Ruimin Hu National Engineering Research Center of Multimedia Software, Wuhan University Wuhan 430072, Hubei, china Email: Abstract: The dividedlayer protocol architecture for Mobile ad hoc Networks (simply MANETs) can only provide partial stack. This leads to treat difficulties in QoS guarantee of multimedia information transmission in MANETs, this paper proposes Acrosslayers QoS Model for MANETs, CQMM. In CQMM, a core ponent was added work status repository (NSR), which was the center of information exchange and share among different protocol layers in the stack. At the same time, CQMM carried out all kinds of unified QoS controls. It is advantageous that CQMM avoids redundancy functions among the different protocol layers in the stack and performs effective QoS controls and overall improvements on the work performances. Keyword: Crosslayers QoS Model, Mobile Ad hoc Networks (MANETs), Network Status Repository (NSR), QoS Controls. 1 introduction With the rapid development of multimedia technologies and the great increase of his bandwidth for personal munication, video and video services begin to be deployed in MANETs. Different from static works and Inter, multimedia munications in MANETs such as Voice and Video services require strict QoS guarantee, especially the delay guarantee. In addition, munication among different users can be integrated services with different QoS requirements. These lead to great challenges in QoS guarantee of multimedia munication in MANETs. There are two main reasons in these: 1) MANETs runs in atypical wireless environment with timevarying and unreliable physical link, broadcast channel, and dynamic and limited bandwidth and so forth. Therefore, it can only provide limited capability for differentiated services with strict QoS requirements [1].2) It is difficult that traditional flow project and access control mechanism are implemented because of mobility, multiple hops and selforganization of MANETs. At present, most researches on QoS based on traditional dividedlayer protocol architecture for MANETs focus on MAC protocol supporting QoS [2], QoS routing protocol [3] and adaptive application layer protocol with QoS support [4], and so on. It is avoid less that there will be some redundancies on functions among the different protocol layers in the stack. This will increase the plexity of QoS implementation and cause some difficulties in overall improvement on the work performances. Therefore, it is not suitable for MANETs with low processing ability In recent years, the crosslayers design based on the partial protocol layers in MANETs was put forward.[1] proposed the mechanism with QoS guarantee for heterogeneous flow MAC layer.[5,6,7,8] did some researches on implementing video munication with QoS guarantee by exchange and cooperation of information among a few layers in MANETs. These can improve QoS in MANETs’ munication to some extent. However, MANETs is much more plex than wired system and static work, and improvements on QoS guarantee depend on full cooperation among all layers in the protocol stack. Therefore, it is difficult for the design to provide efficient QoS guarantee for munication and overall improvements on the work performances in MANETs. To make good use of limited resources and optimize overall performances in MANETs, this paper proposes a novel crosslayer QoS model, CQMM, where different layers can exchange information fully and unified QoS managements and controls can be performed. The rest of the paper is organized as follows. CQMM is described in section 2 in detail. In section 3, we analyze CQMM by the parison with section 4 concludes the paper. 2. A CROSSLAYER QOS MODEL FOR MANETSCQMM Architecture of CQMM In MANETs, present researches on QoS are mostly based on traditional dividedlayer protocol architecture, where signals and algorithms supporting QoS are designed and implemented in different layers respectively, such as MAC protocol supporting QoS in data link layer [9], routing protocol with QoS support in work layer[],and so forth. It can be summarized as A Dividedlayer QoS Model for MANETs, DQMM (see ). In DQMM, different layers in the protocol stack are designed and work independently。 there are only static interfaces between different layers that are neighboring in logic。 and each protocol layer has some QoS controls such as error control in logic link layer, congestion control in work, etc. On the one hand,