NDLI: Differential successive relaying scheme for fast and reliable data delivery in vehicular ad hoc networks

Content Provider	IET Digital Library
Author	Ren, Chao Chen, Jian Kuo, Yonghong Yang, Long
Abstract	The high-speed mobility of modern transportation worsens the situation of unstable direct links and imprecise channel estimation, which poses challenges on fast and reliable data delivery in vehicular ad hoc networks (VANETs). The goal of the proposed scheme is to provide high-speed full-duplex relaying connectivity for unstable direct links, and reliable information detection without precise channel state information (CSI) in VANETs. In the proposed scheme, full-duplex relaying connectivity is provided by differential successive relays (DSRs) at roadside or inside other vehicles. To improve robustness of DSR without specific CSI, efficient blind interference cancellation is presented to mitigate inter-relay interference. Meanwhile, reliable information detection without precise CSI is enabled by superposition coding with differential modulation. Furthermore, the advantages, applications of DSR and complexities for real-world implementation are discussed, and the decision rule, bit error probability and ergodic capacity are theoretically obtained. Numerical results verify significant improvements in the performance of the proposed scheme when compared with conventional schemes with half-duplex relays and frequent channel estimation in VANETs.
Starting Page	1088
Ending Page	1095
Page Count	8
ISSN	17518628
Volume Number	9
e-ISSN	17518636
Issue Number	Issue 8, May (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/9/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.0830
Journal	IET Communications
Publisher Date	2015-04-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bit Error Probability Blind Interference Cancellation Channel Capacity Channel Coding Channel Estimation Code Communication Channel Equalisation And Identification Decision Rule Decision Theory Differential Modulation Differential Successive Relaying Scheme DSRs Electromagnetic Compatibility Ergodic Capacity Error Statistics Fast Data Delivery Game Theory High-speed Full-duplex Relaying Connectivity High-speed Mobility Imprecise Channel Estimation Inter-relay Interference Mitigation Interference Interference Suppression Mobile Radio System Relay Network Reliability Reliable Data Delivery Reliable Information Detection Superposition Coding Telecommunication Telecommunication Network Reliability Transportation Unstable Direct Link VANETs Vehicular Ad Hoc Network
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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