Weitere Kapitel dieses Buchs durch Wischen aufrufen
This book has so far covered different aspects of vehicular communication which is enabled by the 802.11 technology. The motivation of using 802.11 is that (1) the networks that employ this technology are widely deployed, and (2) a variant of this technology, 802.11p WAVE, has been standardized for vehicular communication. Unlike the conventional “cellular” technologies that always allow information exchange through a centralized base station, 802.11p additionally supports an ad hoc mode in which the vehicles can effectively bypass the network infrastructure. The ability to communicate on direct links is an asset in time critical situations because it incurs smaller time delay. Interestingly, the direct communication between devices is now being envisaged in cellular networks as well. The idea is that the devices can ignore the base station, if required, and exchange data on direct Device-to-Device (D2D) links. This is a remarkable shift in the way the legacy cellular networks have always been deployed, operated, and used. A base station, along with other network entities, has always been part and parcel of the cellular network architecture, which traditionally liaisons all communication activity. Bypassing the network infrastructure (base station, etc.) is not going to be that easy because it does more than just relaying data between two devices.
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- Cellular Technology-Based Vehicular Communication
Syed Faraz Hasan
- Chapter 8
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