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DC 栏位值语言
dc.contributor.author刘永祥en_US
dc.contributor.author李程辉en_US
dc.date.accessioned2014-12-12T01:38:22Z-
dc.date.available2014-12-12T01:38:22Z-
dc.date.issued2009en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#GT079713541en_US
dc.identifier.urihttp://hdl.handle.net/11536/44561-
dc.description.abstract负载式运送(piggyback)能有效的减少MAC 层的在协定上耗费的时间. 然而,
它并不是所有情况皆适用. 在某些情况下, 它会受到”重传”与”负载式运送问题”
的影响而减少频带使用的效能. 针对资料(data)讯框,确认(Ack)讯框与免竞争輪询
(CF-poll)讯框有多种负载式运送的方式. 为了追求最高的效能, 我们想找
出不同情况下最佳的作法.
首先, 我们只专注在资料讯框与确认讯框是否需要合并运送的问题上.接着讨
論在HCCA 的架构下, 是否需要将免竞争輪询讯框也一起合并的问题. 在考虑有
位元错误率与不同的传输速率的情况下, 我们分别计算各种情况的平均有效传
送量(throughput)來选出最好的方式传送. 根据我们研究发现,在某些情况下这种
做法可以改善高达 50% 的效能.		zh_TW
dc.description.abstractPiggyback is an effective way to reduce the MAC protocol overhead. However, it
is not always useful in every environment. In some cases, it may decrease the channel
efficiency due to the retransmissions and the piggyback problem. There are some rules
to piggyback with data frame, ack frame and CF-poll frame. In order to maximize the
throughput, we have to find out which way has the best efficiency. First, we focus
only on piggybacking data and Ack frame or not. Second, we also discuss the CF-poll
frame in HCCA. Considering the transmission bit error and transmission rate, we
estimate the average throughput then choose a way to transmit. The improvement of
piggyback can reach 50% in some case.		en_US
dc.language.isoen_USen_US
dc.subject负载式运送zh_TW
dc.subject多重速率zh_TW
dc.subject确认讯框zh_TW
dc.subject免竞争輪询讯框zh_TW
dc.subjectpiggybacken_US
dc.subjectmulti-rateen_US
dc.subjectAcken_US
dc.subjectCF-pollen_US
dc.title在 HCCA 架构下是否使用负载式运送zh_TW
dc.titleTo Piggyback or Not to Piggyback in HCCAen_US
dc.typeThesisen_US
dc.contributor.department电信工程研究所zh_TW
显示于类别：Thesis


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