Joint power and bandwidth allocation for beam-hopping user downlinks in smart gateway multibeam satellite systems | Zendy

Shengchao Shi | Zendy; Guangxia Li | Zendy; Zhiqiang Li | Zendy; Hongpeng Zhu | Zendy; Bin Gao | Zendy

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Joint power and bandwidth allocation for beam-hopping user downlinks in smart gateway multibeam satellite systems

Author(s) -

Shengchao Shi,

Guangxia Li,

Zhiqiang Li,

Hongpeng Zhu,

Bin Gao

Publication year - 2017

Publication title -

international journal of distributed sensor networks

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.324

H-Index - 53

eISSN - 1550-1477

pISSN - 1550-1329

DOI - 10.1177/1550147717709461

Subject(s) - computer science , bandwidth (computing) , resource allocation , bandwidth allocation , default gateway , joint (building) , dynamic bandwidth allocation , communications satellite , optimization problem , gateway (web page) , computer network , transmitter power output , channel allocation schemes , mathematical optimization , satellite , telecommunications , wireless , transmitter , algorithm , engineering , architectural engineering , channel (broadcasting) , mathematics , world wide web , aerospace engineering

To improve the efficiency of on-board resources utilization, two joint power and bandwidth allocation schemes are proposed to optimize power and timeslot allocation for beam-hopping user downlinks of the smart gateway system. By decomposing the two-variable optimization problem into two single variable optimization problems, the joint optimization problem is solved effectively. Moreover, two novel algorithms are proposed to solve the two subproblems. Extensive simulation results demonstrate that the efficiency of resource utilization can be effectively improved with the joint power and bandwidth allocation schemes in contrast with conventional allocation scheme.

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