Enabling coexistence of cognitive vehicular networks and IEEE 802.22 networks via optimal resource allocation

Spectrum sharing methods for the coexistence of multiple RF systems: A survey

“…However, these selfish behaviors can lead to serious unfairness issues. For example, when a cognitive vehicular network and an IEEE 802.22 network share the same TVWS channel, although they have the same priority to access the channel, IEEE 802.22 devices are allowed to use significantly higher transmit power than vehicular communication devices [154]. Hence, if the IEEE 802.22 devices take advantage of their high transmit power and selfishly occupy the shared channel all the time, the vehicular devices will not be able to use the channel.…”

“…The power asymmetry problem in the TVWS band is also studied in [154]. Although the paper focuses on the coexistence of a WRAN and a low-power vehicular network operating in the TVWS band, the proposed spectrum sharing method is so general that it also applies to the coexistence of WRAN and 802.11af networks.…”

Computation Offloading and Resource Allocation in Vehicular Networks Based on Dual-Side Cost Minimization

“…The authors in [6], [24], [25] novelly proposed to open source of TVWS for wireless data transmission. The authors in [26], [27] ulteriorly proposed a coexistence framework including a CVN and an 802.22 network, by appropriate radio resource allocation scheme, spare IEEE 802.22 TVWS channels could be reused by CVNs and the spectrum shortage issue in CVNs could be relieved.…”

“…Those applications are usually computationintensive and energy-demanding, however, contribute much to the commercial success of vehicular MEC. In accordance with the 802.22 standard and many existing works on CVN [26], [27], we adopt a centralized periodic model for each segment, i.e., scheduling is performed independently by each RSU among all its covered VTs in each frame, so in the following we will discuss the optimization within a certain RSU as a representative. There's a TVWS channel consisting of several sub-channels to be reused by all the VTs.…”

“…In our MEC enabled vehicular network, Λ n (t) can be processed locally by VT n or be offloaded and executed remotely by its attached MRSU according to different offloading decisions. Our system works in frames and scheduling is performed in each uplink subframe (which is called frame for short) [26], [27].…”