Guest Editorial: Cross-Layer Design for Future Generation Wireless Networks

With the rapid development of wireless technologies, the future generation wireless networks have more challenges for providing reliable and high quality end-to-end performance in wireless multimedia communications. A cross-layer design has become a popular topic in which more and more researchers are engaged. That leads to a lot of cross-layer design proposals for wireless networks. This special issue aims to collect and foster stateof-the-art research pertaining to cross-layer design in the area of future generation wireless networks. The emphasis of this special issue will be on cross-layer protocol interactions and design of cross-layer optimized techniques. The accepted fourteen papers are grouped into six main themes. The first set of papers deals with the cross-layer energy-efficient and power control mechanisms. The second set reports the cross-layer routing protocols. The third set of papers investigates theTCP improvement schemes using cross-layer design. The fourth set of papers describes the cross-layer multimedia schemes. The fifth set of papers displays the cross-layerQoS scheduling schemes. The final set of papers discusses the cross-layer design in IEEE 802.16 networks. In the first set of papers, the cross-layer energy-efficient design and power control mechanisms are reported. In the first paper, Li-Chun Wang, Jane-Hwa Huang, Anderson Chen, and Chung-Ju Chang, proposed the cross-layer analysis of joint rate and power adaptation in Nakagami fading channels with multiple-user contention. The authors proposed channeldriven rate and power adaptation (CDRPA) schemes and develop a physical (PHY)/medium