Space-time diversity-enhanced qos provisioning for real-time service over MC-DS-CDMA based wireless networks

Xi Zhang, Jia Tang
IEEE Global Telecommunications Conference, 2004. GLOBECOM '04.  
In order to support the quality-of-service (QoS) requirements for real-time traffic over broadband wireless networks, advanced techniques such as space-time diversity (STD) and multicarrier direct-sequence code division multiple access (MC-DS-CDMA) are implemented at the physical layer. However, the employment of such techniques evidently affects the QoS provisioning algorithms at the medium access control (MAC) layer. In this paper, we propose a space-time infrastructure and develop a set of
more » ... develop a set of cross-layer real-time QoS-provisioning algorithms for admission control, scheduling, and subchannel-allocations. We analytically map the parameters characterizing the STD onto the admission-control region guaranteeing the real-time QoS. Our analytical analyses show that the proposed algorithms can effectively support real-time QoS provisioning. Also presented are numerical solutions and simulation results showing that the STD can significantly improve the QoS provisioning for real-time services over wireless networks.
doi:10.1109/glocom.2004.1378495 dblp:conf/globecom/ZhangT04 fatcat:62f4s4el3vdlpfkbznib7mppca