A Novel Adaptive ARQ Protocol with QoS Guarantee
首发时间:2011-01-13
Abstract:We propose a novel auto repeat request (ARQ) protocol with cross layer design, in order to guarantee quality-of-service (QoS) for wireless multi-hop network. With the cross layer design, the ARQ mechanism has the promise to meet different QoS requirements and adapt to various channel conditions. With the self-configure mechanism of the mode of end to end or hop by hop ARQ, the novel ARQ protocol can meet the time delay need of different service. The theory analysis and simulation results show that the proposed mechanism can improve user experience of various services under heavy burden transmission condition, and improve the network performance significantly.
keywords: Auto repeat request Cross layer design Multi-hop QoS cognitive network
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基于跨层设计的多跳认知网络的QoS保障的ARQ机制
摘要:本文提出了一种新颖的基于跨层设计的ARQ机制,为无线多跳认知网络提供业务质量的保障。该机制基于跨层设计针对不同的QoS业务需求和信道状态,对时延要求高、抖动要求低的实时数据业务使用端到端ARQ、截断ARQ和重传优先级队列;对时延要求不灵敏,抖动要求高的非实时数据业务使用逐跳ARQ;对没有时延和抖动要求的BE业务根据信道状态灵活使用各种ARQ机制。理论分析和仿真结果均表明,该机制可以在负载很大的情况下,提高各种优先级业务的用户质量体验,显著的提高时延和时延抖动性能。
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No.4403024562454129****
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