A novel cross-layer design and QoS evaluation for wireless multiservice networks

Cross-layer design is becoming a popular design methodology for the IP-based next-generation wireless systems 3G/4G. Several cross-layer methods are emerging to enhance the performance of the applications and achieve better Quality of Service (QoS) support. Through these methods, the refined wireless systems are expected to gain significant performance improvement and obtain extended functionality that is very hard if not impossible to obtain from a single layer signalling. Thus we propose in this paper a new Cross-Layer Coordination Based Architecture CLCBA aiming the optimization of the QoS in wireless multiservice networks: IEEE 802.16e. The main idea of the proposed architecture is the coordination between many sub-optimizers. This coordination is managed by a central coordinator that represents the core of the CLCBA scheme. An extension of CLCBA named Extended CLCBA (ECLCBA) will be also presented in this paper. ECLCBA aims the optimization of the QoS in the radio link.