Pongsatorn SedtheetornMahidol University2018-09-132018-09-132009-12-162009 IEEE Symposium on Industrial Electronics and Applications, ISIEA 2009 - Proceedings. Vol.1, (2009), 165-1692-s2.0-76449121627https://repository.li.mahidol.ac.th/handle/20.500.14594/27447In this paper, we propose a joint throughput maximisation design across Physical (PHY) and Call admission control (CAC) layer for multi-class VSG CDMA systems in a Rayleigh fading environment. The system model is accurately analysed and a new exact closed form of the PHY-layer constraint is derived. We show that it is possible to transform the set of the non-linear PHY-layer constraints into linear expressions of the admission region of CAC layer. This facilitates formulating a linear cost function, which is modeled by semi-Markov decision processes (SMDPs), and results in an accurate cross-layer optimisation design. With the proposed design, the maximum throughput is achieved by linear-programming approach as well as the QoS requirements of both layers are guaranteed. Based on the numerical results, the system performance are improved up to 50% in terms of throughput and blocking probability. © 2009 IEEE.Mahidol UniversityComputer ScienceEngineeringConference PaperSCOPUS10.1109/ISIEA.2009.5356490