In a broadcasting task, source node wants to send the same message to all the other nodes in the network. Existing solutions range from connected dominating set (CDS) based on static networks to blind flooding for moderate mobility and hyper-flooding for highly mobile and frequently partitioned networks. Existing protocols for all scenarios are based on some threshold parameters (e.g. speed, wh...

In today’s world, having a reliable communication system during emergency situations is of paramount importance to lessen the impact of the disasters. This paper proposes an emergency communication technique which is enabled by ATSC DTV transmitter identification (TxID) watermark signal. Theoretical and simulation results show that ATSC TxID watermark signal can reach a larger coverage area tha...

The Common Alerting Protocol (CAP) is an open standard, which is universally used for early warning systems and other emergency information systems. Future early warning systems will also disseminate CAP warning messages to location aware Internet devices, such as notebooks, Internet phones or Internet-enabled television sets. These Internet devices have the option to acquire their current loca...

In this paper, we present an optimal-bandwidth, min-process coordinated check pointing algorithm suitable for network failure prone applications in distributed systems. In the developed algorithm, during normal computation message transmission, dependency information among clusters is recorded in the corresponding cluster head processes. When a check pointing procedure begins, the initiator fro...

The delivery of user-tailored warning messages for heterogeneous user groups is a challenge rarely covered by hazard monitoring and Early Warning Systems (EWS) even though it is one of the four key elements of early warning systems identified by the United Nations International Strategy for Disaster Reduction (UN/ISDR). This article describes the concepts of generic information logistics develo...

In Public key cryptography a message is sent after applying the digital signature and encryption techniques by the sender. These techniques are used so that the message properties such as confidentiality, integrity and unforgeability are maintained and the non-repudiation can be ensured at the receiving end. The digital signatures and encryption mechanisms can be combined to form a single logic...

A wireless ad hoc network is a collection of mobile nodes with no fixed infrastructure. The absence of central authorization facility in dynamic and distributed environment requires collaboration among nodes. When a source searches for a route to a destination, an intermediate node can reply with its cached entry. To strengthen correctness of such routing discovery process, we propose a method ...