A new satellite communication bandwidth allocation combined services model and network performance optimization

Abstract

SUMMARYWith the rapid development of online to offline economy, new services compositions would take up a great part in the satellite communication.More and more new services compositions request more bandwidth and network resources, which lead to serious traffic congestion and low channel utilization. Suffering from isolated link connection and changeable delay under the satellite environment, current bandwidth allocation schemes could not satisfy with the demand of low delay and high assess rate for new satellite services.This paper focuses on bandwidth allocation method for satellite communication services compositions. The novel models of services compositions with single-hop Poisson distribution are designed to simulate original traffic arrival. Isolated independent coefficients take an original distribution to adapt to isolated disconnections. Services queue waiting time would be judged by acceptable delay threshold. Models provide new services compositions with more precise arrival distributions. In order to improve traffic congestion, the method combined services models, and a network performance is proposed. Optimal reserved bandwidth is set according to the priority and arrival distribution of different services compositions, which classify services with feedback transmission performance. We design minimum fuzzy delay tolerant intervals to calculate delay tolerant threshold, which adapt random delay changes in the services network with delay tolerant features. The simulation in OPNET demonstrates that the proposed method has a better performance of queuing delay by 16.3%, end-to-end delay by 18.7%, and bandwidth utilization by 13.2%.

MILP formulation improvement with k-means clustering for the beam layout optimization in multibeam satellite systems

“…In this section, the MILP formulation presented in [5] is recalled using the notation of section 2.1 for the problem parameters: the formulation is given by constraints (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11), except that non linear constraints ( 4) and ( 6) are replaced by constraints (12)(13)(14) below. This formulation will be referred to as formulation MILP1.…”

“…This u direction will be the direction for which the projection of the vector "beam center b to beam center b " will be constrained to be greater than the required separation • For u ∈ U, the γ b,b ,u = 0 value will be used (see constraint ( 14)) to relax the constraints. This behavior with respect to the values of the γ b,b ,u variables is ensured by constraints (14). To relax properly the separation constraint when it is necessary to do so (γ b,b…”

“…Because of the increasing demand in various data exchanges, there has been a significant amount of research devoted to performance improvement of such systems, as reviewed in [22], such as the use of optical link techniques [19], the coordination of two co-localized satellites [7] or the design of multibeam array antennas [21]. The literature on solution approaches for power and frequency allocation problems is rather rich [18,11,12,23,24,1,14,10]. However, papers dealing with beam layout algorithms are not frequently published.…”

State Machine with Tracking Tree and Traffic Allocation Scheme Based on Cumulative Entropy for Satellite Network

“…Du J proposed auction design and analysis for SDN-Based traffic offloading in hybrid satellite-terrestrial networks [9] , which exploited the unique optimal biding strategies. In our previous work, we proposed a services model based on queue theory and traffic allocation, which enhanced the efficiency of satellite network with sufficient resources [10] . This paper will further improve the efficiency of traffic allocation under limited resources in heterogeneous network.…”

Integrated Satellite and LTE Service Protocols Online Monitoring System Based on Ontology

“…With rapid development of global information network, combined satellite and LTE (Long Term Evolution) mobile communications have been significant foundation facilities, which provide with long distance, wide area and high mutual communication services [1].…”