Title :
A data link control protocol for LEO satellite networks providing a reliable datagram service
Author :
Ward, Christopher ; Choi, Cheong H. ; Hain, Thomas F.
Author_Institution :
Dept. of Comput. Sci., City Univ. of New York, NY, USA
fDate :
2/1/1995 12:00:00 AM
Abstract :
A data link control protocol for low earth orbit satellite networks has been developed to overcome throughput limitations inherent in event-based positive acknowledgment automatic-repeat-request class protocols. This was accomplished by relaxing a reliability constraint, specifically, the in-sequence delivery constraint. This relaxation results in a new class of link layer service, that of reliable datagram, and permits a fresh approach to link layer protocol design. The authors present one such protocol, the low altitude multiple satellite data link control (LAMS-DLC) protocol. They derive the throughput efficiency of LAMS-DLC and compare the results with HDLC (selective reject). The analysis is verified using an event-based simulation. Measurements suggest that LAMS-DLC provides near optimal throughput efficiencies in the target environment, while using significantly less buffer space than that required for HDLC-SREJ
Keywords :
automatic repeat request; channel capacity; data communication; packet radio networks; satellite communication; telecommunication control; telecommunication services; telecommunication traffic; transport protocols; HDLC; HDLC-SREJ; LAMS-DLC protocol; LEO satellite networks; buffer space; data link control protocol; datagram service; event-based positive acknowledgment automatic-repeat-request class protocols; event-based simulation; in-sequence delivery constraint; link layer protocol design; link layer service; low altitude multiple satellite data link control protocol; low earth orbit satellite networks; reliability constraint; selective reject; throughput; Analytical models; Automatic control; Automatic repeat request; Computational modeling; Extraterrestrial measurements; Forward error correction; Low earth orbit satellites; Propagation delay; Protocols; Throughput;
Journal_Title :
Networking, IEEE/ACM Transactions on
