Research Article
Call Admission Control Scheme for IDMA-based Multi-beam Satellite Systems in the Downlink Direction
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158227, author={Xin Ge and Gongliang Liu and Hongdan Wang and Naitong Zhang}, title={Call Admission Control Scheme for IDMA-based Multi-beam Satellite Systems in the Downlink Direction}, proceedings={6th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={3}, keywords={idma power allocation call admission control sinr evolution multi-beam satellite system}, doi={10.1109/ChinaCom.2011.6158227} }- Xin Ge
Gongliang Liu
Hongdan Wang
Naitong Zhang
Year: 2012
Call Admission Control Scheme for IDMA-based Multi-beam Satellite Systems in the Downlink Direction
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158227
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 maximize the resource utilization in IDMA-based multi-beam satellite systems, a new power allocation scheme based on SINR evolution technique is proposed. To further validate the IDMA into satellite systems, an effective call admission control (CAC) based on the proposed power allocation scheme is developed. Analysis and simulation results show that, compared to the traditional CAC scheme, IDMA under the proposed scheme can not only provide better QoS, in terms of the blocking/dropping probability as well as outage probability, but also improve the power efficiency and normalized throughput, especially in heavy load conditions.