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Two-tier Common Control Channel Scheme for CogVANET - Basic Performance Evaluation
著者
  Shoji Tsuru, Kazuya Tsukamoto, Masato Tsuru, Yuji Oie
 
雑誌名/会議名
  IEICE General Conference (滋賀県草津市)(2015年3月) 2015 年 3 月
 
アブストラクト
  With the introduction of intelligent transport systems (ITS), vehicles will soon begin to serve as communication vehicles, much like handheld PC and smartphones. To achieve wide deployment of VANET apps., acquisition of new available spectrum bands (SBs) is becoming an urgent necessity, but it is extremely difficult due to the spectrum scarcity problem. In this study, cognitive radio technology, in which unlicensed secondary user (SU) temporarily utilizes white space(s), i.e., unused SBs, exibly from the vast range of SBs allocated to licensed primary user (PU), is applied to VANET (CogVANET). In CogVANET, since (1) the network topology and (2) available white spaces change continuously in time and space, a common control channel (CCC) is essential to provide efficient communication. We propose the architectural design of both location-based and groupbased CCCs to solve two crucial issues. A rst CCC enables a vehicle to discover other vehicles, and to form a group based upon the information exchanged in a large area (i.e., Zone), which is referred to as a zone aware control channel (ZACC). After forming the group, the second group-based CCC conveys and shares various information among vehicles participating the group (i.e., Swarm), to select a data channel (i.e., Dch), which is referred to as a swarm aware control channel (SACC). In this study, we compare the basic performance of the proposed scheme with the existing studies.
 
キーワード
  コグニティブ無線
 
記述言語
  English
 
 

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