Abstract
In a low earth orbit (LEO) satellite network, handover management across satellite spot beams needs to be addressed to decrease handover times while using network resources efficiently since the speed of LEO satellites is much higher than that of mobile nodes. In this paper, we propose a novel satellite handover strategy based on the potential game for mobile terminals in a LEO satellite communication network. To continue communication with the counterpart, the user has to switch among the covered LEO satellites. In a software-defined satellite network (SDSN) architecture, the satellite handover can be viewed as a bipartite graph. To balance the satellite network workload, we propose a terminal random-access algorithm based on the target of userspace maximization. The simulated handover conducted on a typical LEO satellite network, Iridium, corroborates the effectiveness of the proposed handover strategy.
Highlights
With the steady increase of multimedia business and mobile terminal users’ increasingly urgent demand for convenient access, geostationary orbit (GEO) satellites have not satisfied the application requirements of latency and the use of the frequency spectrum
Based on an software-defined satellite network (SDSN) architecture, we proposed a handover algorithm based on the potential game to gain the maximum benefits of the mobile terminals
Wu et al.: Satellite Handover Strategy Based on the Potential Game in low earth orbit (LEO) Satellite Networks TABLE 1
Summary
With the steady increase of multimedia business and mobile terminal users’ increasingly urgent demand for convenient access, geostationary orbit (GEO) satellites have not satisfied the application requirements of latency and the use of the frequency spectrum. Based on an SDSN architecture, we proposed a handover algorithm based on the potential game to gain the maximum benefits of the mobile terminals.
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