翻訳と辞書 Words near each other ・ Oppum ・ Oppurg ・ Oppurg (Verwaltungsgemeinschaft) ・ Oppuurs ・ Oppy ・ Oppy Family Fun Ride ・ Oppy Mountain ・ Oppy, Pas-de-Calais ・ Oppåkermoen ・ Oppède ・ OPQ ・ Opportunistic breeders ・ Opportunistic collaboration ・ Opportunistic encryption ・ Opportunistic infection ・ Opportunistic mesh ・ Opportunistic Mobile Social Networks ・ Opportunistic reasoning ・ Opportunitas aequa ・ Opportunities (Let's Make Lots of Money) ・ Opportunities for a Better Tomorrow ・ Opportunity ・ Opportunity (rover) ・ Opportunity Center ・ Opportunity Charter School ・ Opportunity class ・ Opportunity cost ・ Opportunity Driven Multiple Access ・ Opportunity engineering ・ Opportunity Farms, Missouri Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Opportunistic mesh ： ウィキペディア英語版 Opportunistic mesh Opportunistic mesh (OPM) is a wireless networking technology that aims to provide reliable and cost-effective wireless bandwidth when used to build the networking infrastructure of large-scale wireless systems. ==Technology== The OPM technology is based on the cognitive networking principles that are advanced from traditional wireless networking by the opportunistic utilization of both spectrum bandwidth and mesh station/radio availability. Traditional wireless networking assumes that those resources can be predetermined, and the protocol stacks from wire-line networks can be re-used. For example, in the traditional stack, the MAC (Media Access Control) layer allocates spectrum resources to wireless links; and the network layer sets up a network routing path from source to destination based on the overall network topology. In large-scale wireless systems, the use of this stack results in a network that is unable to respond to volatile spectrum availability which can be typical in unlicensed bands where interference prevails. In addition, random station/radio availability is also often encountered due to the dynamic traffic load (congestion) and other factors such as radio failure. Bottlenecks along both wireless links and stations are created because the packet forwarding protocol cannot respond quickly to these changes. File:Large Scale Cognitive Wireless Networking Concept.jpg By adopting the cross-layer architecture that merges network routing into wireless link and RF design, the OPM technology can create a dynamic (fluid) wireless network without predetermined topology and spectrum allocation. In the multi-hop wireless communications, every packet takes opportunistically available paths and spectrum in the wireless network on each hop. The network resource utilization can potentially reach its instantaneous maximum, in spite of volatile changes and demand placed on the network. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Opportunistic mesh」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.