Dynamic Bandwidth Allocation of Satellite/Terrestrial Integrated Mobile Communication System

In this paper, the authors propose two Dynamic Bandwidth Allocation (DBA) schemes, a game theory based DBA and a successive DBA, for Satellite/Terrestrial Integrated Mobile Communication System (STICS). The game theory based DBA allocate the bandwidth according to a utility function based on a weighted demand bandwidth of both satellite and terrestrial system. The successive DBA recursively allocates an unit of bandwidth according to a weighted number of bandwidth unfilled cells of both satellite and terrestrial systems, until the total bandwidth is fulfilled. As results, both DBA outperform the conventional fixed bandwidth allocation scheme. Between two proposed DBA, the successive DBA shows better spectral improvement ratio than the game theory based DBA.