Cheol-Ju Hwang

Mobile IPTV Expanding the Value of IPTV

IPTV stands for Internet protocol television. In other words, users who have any kinds of IP devices are able to watch television wherever they are. This paper illustrates how IPTV would be adopted to wireless and mobile networks with regards to mobile device called mobile IPTV taking relevant technical issues into consideration. Through mobile IPTV, users can use IPTV services anywhere on earth using IP and while on the move. Currently, ITU-T FG IPTV is at the front head of IPTV standardization. Hence, this paper sums up what is going on in ITU-T FG IPTV in terms of mobile IPTV. This paper helps out the IPTV service provider to prepare as to what technical concerns and issues need to be considered for mobile IPTV services.

Location Information Look-Up for Intelligent Handover Decision

IEEE 802.21 standard is developing media independent handover service which is consist of three services, media independent command service, media independent event service and media independent information service. Media independent information service provides a framework by which a media independent handover function both in a mobile node and in a network can discover and obtain homogeneous and heterogeneous network information within a geographical area to facilitate handovers. Also, media independent information service includes support for various information elements providing information that is essential for a handover module in the mobile node to make intelligent handover decision stored in information server. To do so, the mobile node has to discover at least one available information server in networks. This paper proposes a new mechanism in conjunction with DHCP to discover various network information stored somewhere in Internet. Also, implementation has shown that the proposed mechanism can be a convenient and valuable IS location information discovery mechanism in some cases.