Performance Evaluation of Tcp Based Applications Using Double Constellation Geo/leo Architecture
نویسندگان
چکیده
The implementation of an IP based worldwide network needs the availability of a very efficient satellite segment in order to achieve real global coverage. To this aim the satellite component shall provide flexibility and high link availability. Satellite systems based on the use of geostationary (GEO) or Low Earth Orbit (LEO) constellations suffer from their intrinsic limitations in terms of coverage or flexibility. Traffic requirements concerning broadband services are expected to be very uneven both in time and in space. To match this requirement an innovative satellite system architecture, composed by a LEO segment to complement a GEO segment, has been proposed. In this scenario, the implications of using TCP/IP protocols must be evaluated to achieve real integration in the IP network. The paper, after describing the scenario and the main features of TCP/IP protocols over classical satellite links, will theoretically approach the implications at the TCP level due to the switching during data exchange between to segments characterized by different delays. Performance evaluation will be carried out for different system configurations utilizing ns-2 simulator where procedures representing this scenario have been modeled.
منابع مشابه
S Performance Evaluation of Various TCP Protocol over Broadband Hybrid Satellite Constellation
This paper presents the evaluation performance of a hybrid satellite constellation network which provides internet access based on various Transport Control Protocol (TCP). Given known constraints on the hybrid satellite constellation resulting from network performance evaluation criteria. The evaluated satellite network uses the COMMStellation constellation topology operating on Low Earth Orbi...
متن کاملThe COMMStellationTM Satellite Constellation for Broadband Communication System Model in NS-2
This paper presents the evaluation performance of a hybrid satellite constellation network which provides internet access based Transport Control Protocol (TCP). The evaluated satellite network uses the constellation topology operating on Low Earth Orbit (LEO). The COMMStellationTM satellite system implemented using network simulator 2 (NS-2). In this paper, we modified a congestion window cont...
متن کاملAnalysis and Simulation of Delay and Buffer Requirements of satellite-ATM Networks for TCP/IP Traffic
In this paper we present a model to study the end-to-end delay performance of a satellite-ATM network. We describe a satellite-ATM network architecture. The architecture presents a trade-off between the on-board switching/processing features and the complexity of the satellite communication systems. The end-to-end delay of a connection passing through a satellite constellation consists of the t...
متن کاملComparative Evaluation QoS of FTP over LEO and GEO Satellite Networks with Diffserv Architecture
This paper presents studies of the end-to-end QoS of IP over integrated terrestrial and NGSN (next generation satellite network) for file transfer service using FTP. The authors compare between LEO and GEO satellites constellations for the QoS parameters (i.e., delay, jitter, loss rate and throughput) of file transfer between one server in London and a client in Boston. The authors model the fi...
متن کاملTcp Performance Using Splitting over the Satellite Link
Satellites represent a well-assessed approach for delivering broadband service. Several satellite systems either currently operating or in various stages of development intend to support applications with increasing data-rates. Of course, to achieve success, these systems must provide Internet services requiring the support of Internet protocols, especially TCP. Unfortunately, TCP suffers from ...
متن کامل