Wireless communications are becoming increasingly pervasive, as the number and diffusion of portable wireless-equipped devices are exponentially increasing (ranging from cellular phones to handheld game consoles, from personal digital assistant and personal navigation devices to still and video cameras). This results in an unprecedented request for lightweight, wireless communication devices with high usability and performance able to support added-value services in a highly mobile environment, following the user everywhere he goes (at work, at home, while traveling, in a classroom, etc.). This scenario clearly demands significant upgrades to the existing communication paradigm in terms of infrastructure, devices, and services to support the Anytime, Anywhere, Any device philosophy.

This special issue aims to publish high-quality research papers relating to Mobile Lightweight Wireless Systems. Researchers working in these areas worldwide are invited to contribute original and unpublished papers considering the topics of this special issue. Topics of interest include, but are not limited to:

• Wireless communication systems (IEEE 802.11x, WiMAX, IEEE 802.15, Personal Area Networks, Bluetooth, wireless USB, HiperLAN2)
• Cellular networks (2.5G, 3G, 3G LTE, LTE-A)
• Ultra-wideband
• Next-generation networks
• Next-generation lightweight devices (smart phones, PDAs)
• Available and emerging solutions for lightweight systems
• Internetworking and interoperability
• Protocol stack design (layering, cross-layering)
• Performance evaluation and optimization
• Service-oriented architectures
• Cognitive radios and networks
• Seamless roaming
• Voice and Voice over IP
• Location services
• Emerging and next-generation services
• Service provisioning
• Value-added services
• Users' needs and requirements

Before submission authors should carefully read over the journal's Author Guidelines, which are located at http://www.hindawi.com/journals/jcsnc/guidelines/. Prospective authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts.hindawi.com/ according to the following timetable: