通信技术
通信技術
통신기술
COMMUNICATIONS TECHNOLOGY
2014年
10期
1162-1166,1186
,共6页
张浪%李大双%毛建兵%景中源
張浪%李大雙%毛建兵%景中源
장랑%리대쌍%모건병%경중원
自组网%动态TDMA%介质访问控制协议%公平性
自組網%動態TDMA%介質訪問控製協議%公平性
자조망%동태TDMA%개질방문공제협의%공평성
Ad Hoc%dynamic TDMA%MAC protocol%QoS
在Ad Hoc网络中MAC接入协议对整个网络性能起着至关重要的作用。目前提出的一些MAC协议大部分都从提高网络整体吞吐量及降低时延的角度出发,而针对每个业务的QoS需求、接入时隙抖动等具体的问题考虑不足。针对此问题,提出了一种新的基于业务需求的TDMA MAC协议。将数据段和控制段巧妙地设计为交叉形式,并在数据时隙分配算法中采用二叉树分组选择的方法,避免了在多时隙接入情况下各时隙之间的抖动。引入业务优先级制度,在时隙分配算法中通过接入时延代价等参数来体现,能够满足相应的QoS需求。
在Ad Hoc網絡中MAC接入協議對整箇網絡性能起著至關重要的作用。目前提齣的一些MAC協議大部分都從提高網絡整體吞吐量及降低時延的角度齣髮,而針對每箇業務的QoS需求、接入時隙抖動等具體的問題攷慮不足。針對此問題,提齣瞭一種新的基于業務需求的TDMA MAC協議。將數據段和控製段巧妙地設計為交扠形式,併在數據時隙分配算法中採用二扠樹分組選擇的方法,避免瞭在多時隙接入情況下各時隙之間的抖動。引入業務優先級製度,在時隙分配算法中通過接入時延代價等參數來體現,能夠滿足相應的QoS需求。
재Ad Hoc망락중MAC접입협의대정개망락성능기착지관중요적작용。목전제출적일사MAC협의대부분도종제고망락정체탄토량급강저시연적각도출발,이침대매개업무적QoS수구、접입시극두동등구체적문제고필불족。침대차문제,제출료일충신적기우업무수구적TDMA MAC협의。장수거단화공제단교묘지설계위교차형식,병재수거시극분배산법중채용이차수분조선택적방법,피면료재다시극접입정황하각시극지간적두동。인입업무우선급제도,재시극분배산법중통과접입시연대개등삼수래체현,능구만족상응적QoS수구。
In Ad Hoc network, MAC access protocol plays a crucial role in whole network performance. Current MAC protocols are mostly designed from the perspective of improving throughput and reducing time-delaying, but ignoring the specific problems of different businesses, such as QoS requirements and time slot jitter. Aiming at the problem, this paper proposes a novel TDMA MAC protocol based on business de-mands. The data section and control section are cleverly designed in crossed style, and adopts the binary tree method is adopted in the slot allocation algorithm, thus to avoid the jitter of between various time slots in multi-slot access. The QoS requirements are satisfied by introducing the system of business-priority grades, reflected by parameters such as time-delaying cost in the slot allocation algorithm.