Resource Allocation for Cognitive Radio Enabled Vehicular Network Users

Abstract

Vehicular communication networks are expected to provide safety and comfort services to passengers and drivers. To support diverse set of services and applications, vehicular network is expected to used variety of wireless access technologies for Vehicle-to-Vehicle (V2V) and Vehicle-to-roadside (V2R) communications. V2R communication could introduce high delay as roadside communication unit relays the information from source vehicle to destinations vehicles. Thus, for time critical messages, V2R based communication is not suitable to notify drivers in a timely manner. V2V based communication in VANET is performed in a peer-to-peer basis and the intended vehicles could exchange their information directly using single hop or multi-hop communications. In this case, performance of VANET depends on connectivity among vehicles since reliable connectivity for single hop or multi-hop communication is very important to forward time-critical information. The connectivity in VANET is directly related to density of vehicles, relative speed of the vehicles, association time of wireless technology, and transmission range and frequency bands used by vehicles. Time duration .T D / for association (sensing/searching and connection setup) and information exchange depends on transmission range .R/ and relative speed of vehicles .V r / as

Service Provisioning and User Association for Heterogeneous Wireless Railway Networks

“…µp(n + 1, 1) = λp(n, 0) + λp(n, 1), n ∈ {0, 1, ..., n e }, (12) θp(n e + 1, 0) = λp(n e , 0) + ξp(n e + 1, 1).…”

“…In recent literatures, the delay performance of the ondemand data delivery is seldom analyzed in the RCS, which may bring inaccurate results. For example, some solutions extracted from vehicular environments [12], such as the data packets delivery between the vehicles and the highway, cannot be directly applied to the railway communication.…”

Geographical angular zone‐based optimal resource allocation and efficient routing protocols for vehicular ad hoc networks

“…Among those efforts, herewith we have analysed few resource allocation techniques for vehicular networks. Rawat et al [4] proposed a dynamic spectrum access scheme for intra vehicle communication. In their work, they have assumed all vehicles are equipped with software defined RF transceiver.…”

Stochastic dynamic programming model for optimal resource allocation in vehicular ad hoc networks

“…Among those efforts, herewith we have analysed a few resource allocation techniques for vehicular networks. Rawat et al [4] proposed a dynamic spectrum access scheme for intravehicle communication. In their work, they assumed that all vehicles are equipped with a software-defined RF transceiver.…”