| Downlink call admission control with power allocation and rate scheduling for IDMAbased multibeam satellite systems |
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| 作者姓名： | GE Xin LIU Gong liang WANG Hong dan WANG Yong ZHANG Nai tong |
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| 作者单位： | School of Electronics and Information Engineering,Harbin Institute of Technology;School of Information Science and Engineering,Harbin Institute of Technology |
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| 基金项目： | Sponsored by the National Natural Science Foundation of China (Grant No. 61001093), the National Basic Research Program of China (Grant No. 2007CB310606), the Development Program for Outstanding Young Teachers in Harbin Institute of Technology (Grant No.HITQNJS. 2008.063), and the Natural Scientific Research Innovation Foundation in Harbin Institute of Technology(HIT.NSRIF.2011114) |
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| 摘 要： | Considering the advantage of interleave-division multiple-access (IDMA) technique and the technical bottlenecks in the existing satellite systems,IDMA is introduced into satellite communication network...
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| 关 键 词： | IDMA call admission control power allocation rate adaptation SINR evolution multi-beam satellite system |
Downlink call admission control with power allocation and rate scheduling for IDMA based multi beam satellite systems |
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| GE Xin,LIU Gong liang,WANG Hong dan,WANG Yong,ZHANG Nai tong.Downlink call admission control with power allocation and rate scheduling for IDMA based multi beam satellite systems[J].Journal of Harbin Institute of Technology,2012,19(2):85-90. |
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| Authors: | GE Xin LIU Gong liang WANG Hong dan WANG Yong and ZHANG Nai tong |
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| Affiliation: | 1. School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China
2. School of Information Science and Engineering, Harbin Institute of Technology, Shandong Weihai 264209, China |
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| Abstract: | Considering the advantage of interleave division multiple access (IDMA) technique and the technical bottlenecks in the existing satellite systems, IDMA is introduced into satellite communication networks. To further validate the IDMA into satellite systems, an effective call admission control (CAC) is proposed to maximize the resource utilization. After establishing the multi beam satellite system model based on variable spreading gain (VSG) IDMA, the power allocation scheme based on SINR evolution technique and transmission rate adaptation for nonreal time interactive traffic are designed as integrated parts of the CAC, working together to improve the system performance in terms of power efficiency and throughput. Further, the analysis and simulation results show that IDMA under the proposed scheme can provide better QoS, in terms of the blocking/dropping probability, outage probability as well as delay performance. |
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| Keywords: | IDMA call admission control power allocation rate adaptation SINR evolution multi-beam satellite system |
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