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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rawat, D.B. Reddy, S. Sharma, N. Bista, B.B. Shetty, S. |
| Copyright Year | 2015 |
| Description | Author affiliation: Dept. of Electr. & Comput. Eng., Tennessee State Univ., Nashville, TN, USA (Shetty, S.) || Dept. of Electr. Eng., Georgia Southern Univ., Statesboro, GA, USA (Rawat, D.B.; Reddy, S.; Sharma, N.) || Fac. of Software & Inf. Sci., Iwate Prefectural Univ., Iwate, Japan (Bista, B.B.) |
| Abstract | Transportation Cyber Physical Systems (CPS) are expected to rely on robust wireless communication networks for real-time feedback for controlling these systems. The IEEE 802.11p based Dedicated Short Range Communication (DSRC) standard has been proposed for vehicular communications that has 7 channels. However, these channels could be easily congested resulting in delay and unreliable communications when vehicle density is high. In this paper, we present a cloud-assisted global positioning system (GPS)-driven dynamic spectrum access framework for transportation CPS. To provide reliable communications, we assume that each vehicle is equipped with two transceivers: one transceiver (always connected to the internet using e.g., 4G link) queries spectrum database and/or can serve as a GPS through an application (app), and the other transceiver/radio switches channels and adapts to suitable transmit parameters for vehicular communications to avoid any harmful interference to primary users (PUs). Each vehicle calculates the best route to its destination using GPS and finds the set of idle channels along the route. Furthermore, each vehicle periodically checks the spectrum database throughout the route to get most updated spectrum opportunities. We present performance evaluation of the proposed approach with the help numerical results obtained from simulations. |
| Starting Page | 1942 |
| Ending Page | 1947 |
| File Size | 360011 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479984060 |
| DOI | 10.1109/WCNC.2015.7127765 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-03-09 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Databases Vehicles IEEE 802.11 Standards Global Positioning System Cloud computing Cognitive radio Real-time systems GPS-assisted opportunistic spectrum access Cloud based dynamic spectrum access data base driven cognitive radio networks |
| Content Type | Text |
| Resource Type | Article |
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