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专利名称：REGION-BASED CLUSTERING MECHANISM
FOR CHANNEL ACCESS IN VEHICULAR ADHOC NETWORKS
发明人：Chung-Min Chen,Yen-Cheng Lai,Wanjiun
Liao,Phone Lin
申请号：US13110118申请日：20110518
公开号：US20120120883A1公开日：20120517
专利附图：
摘要：In a Vehicular Ad Hoc Network (VANET) a hybrid method combines SDMA
(Space Division Multiple Access) and dynamic TDMA (Time Division Multiple Access) thatdivides the roadway into regions (whose size is larger than the SDMA unit) where eachregion is allocated a pool of radio channels based on SDMA and may contain a limitednumber of vehicles. Vehicles within the same region compete for and access the channelsusing dynamic TDMA. A channel allocation scheme that maps the pool of channels to theregions such that when a vehicle acquires multiple channels (time slots) in a region, theintervals among the channels are as uniform as possible, thus minimizing the waiting timeof the messages to be broadcast by the vehicle, which is critical for safety relatedapplications. This solution is referred to as R-SDMA (Region based SDMA).
申请人：Chung-Min Chen,Yen-Cheng Lai,Wanjiun Liao,Phone Lin
地址：Taipei TW,Xindian City TW,Yonghe City TW,Tainan TW
国籍：TW,TW,TW,TW
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