TY - GEN
T1 - Cross-layer algorithm for VOIP applications over satellite
AU - Berumen, Armando Garcia
AU - Marot, Michel
PY - 2007/1/1
Y1 - 2007/1/1
N2 - It is proved that the normal suite of the TCP/IP protocols works well when it is used in terrestrial networks transporting real time applications. The situation is quite different when wireless networks are used for the same services; their susceptibility to errors, losses as well as the existing delay cause a degradation in the overall performance. Due to the existing demand to interconnect terrestrial networks with satellite communications using DVB-S2/DVB-RCS standards, the satellite link poses a challenge which is to overcome the problems mentioned when applications as Voice Over IP (VOIP) are considered. In the same context, cross-layer mechanisms are being used successfully in Ad-hoc networks. They propose interactions between layers different from the traditional ones in the protocol stack. These mechanisms provide a fast and better way to exchange parameters, drawing as a result a good option to improve the performance in wireless networks. This work proposes an innovative algorithm to adapt dynamically the coding for VOIP applications over satellite using a cross layer interaction between the application and network layers in order to improve the throughput and the perceived quality. This interaction with the network layer indirectly takes into account the state of the MAC and physical layers.
AB - It is proved that the normal suite of the TCP/IP protocols works well when it is used in terrestrial networks transporting real time applications. The situation is quite different when wireless networks are used for the same services; their susceptibility to errors, losses as well as the existing delay cause a degradation in the overall performance. Due to the existing demand to interconnect terrestrial networks with satellite communications using DVB-S2/DVB-RCS standards, the satellite link poses a challenge which is to overcome the problems mentioned when applications as Voice Over IP (VOIP) are considered. In the same context, cross-layer mechanisms are being used successfully in Ad-hoc networks. They propose interactions between layers different from the traditional ones in the protocol stack. These mechanisms provide a fast and better way to exchange parameters, drawing as a result a good option to improve the performance in wireless networks. This work proposes an innovative algorithm to adapt dynamically the coding for VOIP applications over satellite using a cross layer interaction between the application and network layers in order to improve the throughput and the perceived quality. This interaction with the network layer indirectly takes into account the state of the MAC and physical layers.
U2 - 10.1109/PIMRC.2007.4394333
DO - 10.1109/PIMRC.2007.4394333
M3 - Conference contribution
AN - SCOPUS:44349112952
SN - 1424411440
SN - 9781424411443
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
BT - 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'07
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2007
Y2 - 3 September 2007 through 7 September 2007
ER -