Decentralised resource allocation of position‐based and full‐duplex‐based all‐to‐all broadcasting. Issue 15 (1st September 2019)

• Record Type: Journal Article
• Authors: Wang, Fangfei; Liu, Jie; Zhao, Long; Zheng, Kan
• Is Part Of: IET communications. Volume 13:Issue 15(2019)
• Page Start: 2254
• Page End: 2260
• Publication Date: 2019-09-01
• Subjects: autonomous aerial vehicles -- access protocols -- time division multiplexing -- mobile radio -- probability -- resource allocation; unmanned aerial vehicle networks -- typical applications -- efficient information broadcasting -- two‐stage resource allocation scheme -- frequency spectrum reusability -- nonoverlapping square regions -- nonadjacent square regions -- distributed time division multiplexing -- improved coded -- ALOHA scheme -- broadcasted information -- resource reusability -- decentralised resource allocation -- position‐based -- broadcasting services -- vehicular networks; Telecommunication systems -- Periodicals; Speech processing systems -- Periodicals; 621.38205
• DOI: 10.1049/iet-com.2018.6137
• Languages: English
• ISSNs: 1751-8628

Abstract

Abstract : The broadcasting services of vehicles in both vehicular networks and unmanned aerial vehicle (UAV) networks can be seen as the typical applications of all‐to‐all (A2A) scenario. In order to achieve efficient information broadcasting in A2A scenarios, this study proposes a two‐stage resource allocation scheme. In the first stage, to improve the frequency spectrum reusability, the communication area is divided into as many non‐overlapping square regions as possible based on the reliability requirements and power constraints of the vehicles, where the nonadjacent square regions share the same frequency spectrum. In the second stage, the vehicles belonging to the same region broadcast information with distributed time division multiplexing, and an improved coded slotted ALOHA scheme is proposed based on full‐duplex, where each vehicle can detect whether its broadcasted information is successful. Thus, the number of retransmissions and collision probability can be reduced and therefore the system energy can be saved. Results indicate that the two‐stage resource allocation scheme significantly improves the resource reusability while guaranteeing the communication reliability.