Inforamtion & Communication Engineering

Techniques and applications for information hiding have become increasingly more sophisticated and widespread. In a digital world, steganography is introduced to hide the existence of the communication by concealing a secret message file inside another unsuspicious cover file.

The rapid increase of connection-demand to the internet application services, and highly traffic network bandwidth is the main reason behind the need to scale reliable network by using edundancy. In order to increase the reliability of the network, downtime must be minimized; redundancy has to be added in the critical parts of the network.

Two of the major developments reshaping the telecommunication landscape are mobile wireless connectivity and the migration of voice telephone services to IP technology. These two ideas come together in networks that carry voice services over a wireless LAN (VoWLAN). However, the intrinsic characteristics of each of them cause specific issues to appear that must be addressed in order to ensure a successful deployment.