Peer-to-Peer Multimedia Distribution on Radio Channel and Asymmetric Channel

In the Internet and Communication Technology (ICT) field, sharing and distribution of information is very important. Various mechanisms and techniques are used to manage information; one of these is based on peer-to-peer networks. In today’s world and in the near future, the exchange and distribution of information will be a very important aspect in the workplace and in daily life. Consequently, mobile devices, devices for home entertainment, personal computers and office terminals must have the mechanisms to achieve the above functionality. Thus the peer-to-peer networks can be used to achieve (Tomoya & Shigeki, 2003) the following: Video conferences or phone calls (Bakos et al., 2006), in which more users can communicate together simultaneously. The distribution of multimedia contents provided by a single source node, for example: streaming distribution of TV contents or radio broadcasting contents (Ciullo et al., 2008; Leonardi et al., 2008; Mazzini & Rovatti, 2008). An example of a real-time algorithm used to create a simple distribution peer-to-peer network on asymmetric channels is given in article (Mazzini & Rovatti, 2008) and the issues of performance of peer-topeer file sharing over asymmetric and wireless networks is addressed in article (Lien, 2005). Information sharing, for example in a company, the peer-to-peer network system can be used by employees to allow them to work in a shared manner. In daily life, the peer-to-peer network system can be used for sharing personal information such as audio and video contents, documents and others. The more significant peer-to-peer applications used for this purpose are: Gnutella (“The Gnutella Protocol Specification v0.4”; Matei et al, 2002; Wang et al., 2007), Kademlia (Maymounkov & Mazieres, 2002), KaZaA (“http://www.kazaa.com.”), Bit-Torrent (“http://www.bittorrent.com.”), massively multiplayer online game (MMOG) (Carter et al., 2010; Tay, 2005).