%0 Journal Article
%T Evolution of Signaling Information Transmission
%A Jasmina Barakovi£¿ Husi£¿
%A Himzo Bajri£¿
%A Sabina Barakovi£¿
%J ISRN Communications and Networking
%D 2012
%R 10.5402/2012/705910
%X Next Generation Network (NGN) faces the challenge of the rapidly increasing amount of signaling. The growing amount of signaling is a consequence of several reasons arising from the fact that signaling is the main source of network intelligence, analysis, and user behavior monitoring. With the increase in signaling load and complexity, the network management becomes a challenging issue that can impact overall Quality of Service (QoS). To confront this issue, there is a need for reliable and forehand signaling transmission in NGN. As there is much confusion about the interpretation of this concept, this paper aims to provide an overview of the evolution of signaling transmission. Migration towards NGN is analyzed from the signaling perspective. The NGN signaling protocols and related transmission requirements are identified. Through the discussion of standard approaches, the paper considers our previously published approach to signaling transmission along with the current issues and emerging opportunities. 1. Introduction The rapid growth in subscribers, devices, and applications increases the signaling volume that is causing congestion and impacting the Quality of Service (QoS) [1]. In order to deliver the desired levels of service and user¡¯s Quality of Experience (QoE), it is necessary to process significant and growing volume of signaling in real time. There is the need to manage signaling updates and to ensure that service performance is maintained. With the migration to Next Generation Networks (NGNs), the need to manage the growth in signaling has become critical to optimize the network and ease congestion in real time [2]. As networks migrate toward all Internet Protocol (IP) based networks, the growing amount of intelligence is sent through the network [3]. Intelligence means more control over network resources. The optimal source of that intelligence is the signaling. Several advantages are offered using the signaling as the main source of network intelligence, for example, signaling contains the valuable and strategic information in the network that is available nowhere except in the NGN control plane. Therefore, with the growing volume of signaling, the network management becomes the challenging issue. To confront this issue, there is a need for reliable and forehand signaling transmission in NGN. As there is much confusion about the interpretation of this concept, this paper aims to provide an overview of the evolution of approaches to signaling transmission. The NGN is an IP-based packet-switched network, which does not rely on separate
%U http://www.hindawi.com/journals/isrn.communications.networking/2012/705910/