Abstract
IPv6 protocol is the future of IP networks due to its large IP address capacity. One of the key consequences of this large capacity is that the IP protocol header has enlarged from 20-byte in IPv4 to 40-byte in IPv6. This will consume a considerable share of the bandwidth (BW) for VoIP applications, which produce small packets in tens of bytes only. To handle this issue, we have introduced an efficient technique to use the superfluous fields in the VoIP packet header, including the IPv6 header, to hold the voice data of the packet. This introduced technique is called the Eliminator technique because it shortens or eliminates the packet payload. The Eliminator technique has been analyzed against the typical technique of transferring the VoIP data. The BW utilization of the two techniques has been compared with different codecs namely G.726, G.728, and G.723.1 codecs. The analysis showed that the BW wasting has alleviated by 16.4%, 19.1%, and 25% with these codecs respectively. This BW utilization improvement will indirectly boost the quality of the VoIP calls, especially in the wireless environments. Accordingly, the Eliminator technique is a viable solution for alleviating the wasted BW when running VoIP in IPv6 networks.
Highlights
IPv6 protocol is gradually replacing the long-serving IPv4 protocol
We have introduced an efficient technique to use the superfluous fields in the VoIP packet header, including the IPv6 header, to hold the voice data of the packet
The Eliminator technique has been analyzed against the typical technique of transferring the VoIP data
Summary
IPv6 protocol is gradually replacing the long-serving IPv4 protocol. The main reason for inventing the IPV6 address is to increase the IP address capacity. These two applications produce a huge amount of traffic on the Internet These two issues justify the study of the consumed bandwidth (BW) of the IP computer networks by IPv6 protocol header with VoIP and online gaming. These unnecessary fields in the RTP/UDP and IPv6 header are consumed a considerable BW with no use by VoIP services [11] This problem has been addressed by proposing a new specialized protocol for VoIP such as internet telephony transport protocol (ITTP) and IAX protocols, compressing the VoIP packet header, or assign a new role to the unnecessary fields of the packet header (i.e., carry the voice data of the VoIP packet) [14,15].
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