With the continuous development of communication technology, drones are playing an important role in many fields, such as power transmission line inspection and agricultural pesticide spraying. In order to protect data privacy security drones, experts considering blockchain its enabling technology. However, due their small size limited storage, cannot support energy-intensive applications. addi...

In a recent work, we published the Location Prediction Based Routing (LPBR) protocol for mobile ad hoc networks (MANET). LPBR is the first such beaconless MANET protocol to simultaneously minimize the hop count of the paths as well as the routing control overhead measured in terms of the number of control messages received during an on-demand broadcast discovery. LPBR works as follows: If the m...

Many safety-related applications in Vehicular Ad Hoc Networks require fast and reliable emergency message dissemination through multi-hop broadcast. However, the conventional broadcast mechanism is neither efficient nor reliable because it results in serious contention and collisions, which is usually referred to as the broadcast storm problem. In this paper, we propose ERP, a two-phase broadca...

Apache ZooKeeper is a distributed coordination service for cloud computing, providing essential synchronization and group services for other distributed applications. At its core lies an atomic broadcast protocol, which elects a leader, synchronizes the nodes, and performs broadcasts of updates from the leader. We study the design of this protocol, highlight promised properties, and analyze its...

One of the main challenges of securing broadcast communication is source authentication, or enabling receivers of broadcast data to verify that the received data really originates from the claimed source and was not modified en route. This problem is complicated by mutually untrusted receivers and unreliable communication environments where the sender does not retransmit lost packets. The autho...

Vehicular ad hoc networks (VANETs) have been identified as a key technology to enable intelligent transport systems (ITS), which are aimed to radically improve the safety, comfort, and greenness of the vehicles in the road. However, in order to fully exploit VANETs potential, several issues must be addressed. Because of the high dynamic of VANETs and the impairments in the wireless channel, one...