标题：An Improved OFDM Scheme for Service Channels of Vehicular Ad-Hoc Networks
作者：Zhang, Yao; Yang, Li-cai
作者机构：[Zhang, Yao] Shandong Univ Weihai, Sch Mech Elect & Informat Engn, 180 Wenhua Rd West, Weihai, Peoples R China.; [Yang, Li-cai] Shandong Univ, Sch C 更多
会议名称：International Conference on Sustainable Energy, Environment and Information Engineering (SEEIE)
会议日期：MAR 20-21, 2016
来源：2016 INTERNATIONAL CONFERENCE ON SUSTAINABLE ENERGY, ENVIRONMENT AND INFORMATION ENGINEERING (SEEIE 2016)
关键词：Intelligent transportation system; VANET; IEEE 802.11p protocol; Service; channels; OFDM; Sub-carriers allocation
摘要：In order to enhance the efficiency and reliability of transmitting varying application messages in intelligent transportation system, we presented an improved Orthogonal Frequency Division Multiplexing (OFDM) scheme for service channels of IEEE 802.11p Vehicular Ad-Hoc Networks, which combined OFDM technique with identity authentication and dynamic sub-carriers allocation algorithm. OFDM sub-channels could be adaptively adjusted according to the load status of service channels and different QoS requirements. The implementation method of proposed scheme was discussed in detail, and the performance was verified by theoretical analysis and simulation.