CoRoute: a new cognitive anypath vehicular routing protocol

摘要: Vehicular communications promise to bring us safer driving and better traffic control. Dedicated short range IEEE 802.11p are now well established standards for vehicular communications. Channels those systems, however, of limited capacity dedicated safety applications. Thus, they not sufficient support the broad services envisioned in VANETs. It is anticipated that vehicles will utilize Wi-Fi (802.11 a/b/g) acquire more capacity. Unfortunately, channels urban areas already quite heavily subscribed by residential customers. To evade load, this paper, we propose CoVanet, a cognitive ad hoc network architecture allows vehicle radios access ‘opportunistically’, finding least loaded channels. In topology channel environment change frequently because high node mobility. The main contribution work routing protocol (CoRoute). CoRoute hybrid utilizes both geographical location sensed information establish stable, minimum delay routes destination. Simulation results show robust mobility external interference improves packet delivery ratio on average 70% with respect without radios. Copyright © 2011 John Wiley & Sons, Ltd.