Interference-aware high-throughput channel allocation mechanism for CR-VANETs
作者： Madiha Tabassum , Md Abdur Razzaque , Mohammad Mehedi Hassan , Ahmad Almogren , Atif Alamri
DOI: 10.1186/S13638-015-0494-Z
关键词: Network packet 、 Communication channel 、 Channel allocation schemes 、 Data transmission 、 Throughput maximization 、 Throughput 、 Computer network 、 Wireless ad hoc network 、 Cognitive radio 、 Computer science 、 Quality of service
摘要: The incorporation of cognitive radio (CR) technology in vehicular ad hoc networks (VANETs) has given birth to a new network, namely CR-VANET, which facilitates the network achieve communication efficiency many resource-demanding applications including video and audio streaming, collision warning, gaming, etc. One primary challenges this CR-VANET is allocate high-throughput licensed channels application requests face interference between users (PUs) secondary (SUs) among SUs on channels. In paper, we address channel allocation problem with objective system-wide throughput maximization while maintaining quality-of-service (QoS) requirements terms packet delivery delay for data transmission. We develop conflict graphs link-band pairs describe relationship source-destination vehicle different determine independent sets that can communicate simultaneously maximize spatial reuse Finally, formulate as mixed-integer linear programming (MILP) problem. Through extensive simulations, demonstrate proposed interference-aware mechanism (HT-CAM) provides better performances compared state-of-the-art protocols.
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