| Title | Collaborative data dissemination in cognitive VANETs with sensing-throughput tradeoff |
| Authors | Wang, Tianyu Song, Lingyang Han, Zhu |
| Affiliation | State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics, Engineering and Computer Science, Peking University, Beijing, China Electrical and Computer Engineering Department, University of Houston, Houston, United States |
| Issue Date | 2012 |
| Citation | 2012 1st IEEE International Conference on Communications in China, ICCC 2012.Beijing, China. |
| Abstract | Vehicular ad hoc networks (VANETs) have recently received considerable attentions for both safety and commercial applications. In this paper, we address popular content distribution (PCD) in VANETs, in which a popular file is downloaded by a group of on-board units (OBUs) passing by a roadside unit (RSU). Due to high speeds and channel fadings, the OBUs may not finish downloading the entire file from the RSU, but only possess several content pieces. In this paper, we propose a cooperative approach using coalitional graph game to establish a peer-to-peer (P2P) network among the OBUs, in which content pieces are exchanged to complete the file downloading process. Further, we adopt cognitive radio (CR) technique for implementing vehicle-to-vehicle (V2V) transmissions. Simulation results show that the proposed algorithm enjoys a better performance in various conditions, compared to the non-cooperative approach, where OBUs randomly response to content requests from other OBUs. ? 2012 IEEE. |
| URI | http://hdl.handle.net/20.500.11897/411821 |
| DOI | 10.1109/ICCChina.2012.6356860 |
| Indexed | EI |
| Appears in Collections: | 信息科学技术学院 区域光纤通信网与新型光通信系统国家重点实验室 |
