Title :
TCP-Peach: a new congestion control scheme for satellite IP networks
Author :
Akyildiz, Ian F. ; Morabito, Giacomo ; Palazzo, Sergio
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
6/1/2001 12:00:00 AM
Abstract :
Current TCP protocols have lower throughput performance in satellite networks mainly due to the effects of long propagation delays and high link error rates. In this paper, a new congestion control scheme called TCP-Peach is introduced for satellite networks. TCP-Peach is composed of two new algorithms, namely Sudden Start and Rapid Recovery, as well as the two traditional TCP algorithms, Congestion Avoidance and Fast Retransmit. The new algorithms are based on the novel concept of using dummy segments to probe the availability of network resources without carrying any new information to the sender. Dummy segments are treated as low-priority segments and accordingly they do not effect the delivery of actual data traffic. Simulation experiments show that TCP-Peach outperforms other TCP schemes for satellite networks in terms of goodput. It also provides a fair share of network resources
Keywords :
data communication; packet radio networks; satellite communication; telecommunication congestion control; telecommunication traffic; transport protocols; Congestion Avoidance; Fast Retransmit; IP packets; Rapid Recovery; Sudden Start; TCP algorithms; TCP protocols; TCP-Peach; congestion control; data traffic; dummy segments; fair resource sharing; goodput; high link error rates; long propagation delays; low-priority segments; network resources; satellite IP networks; simulation experiments; throughput performance; Availability; Error analysis; Probes; Propagation delay; Protocols; Satellites; TCPIP; Telecommunication traffic; Throughput; Traffic control;
Journal_Title :
Networking, IEEE/ACM Transactions on