Mechanisms about radio wave propagation are the basis for the research of wireless channel modeling. Typical wireless channel models for typical scenarios are of great importance to the physical layer techniques such as synchronization, channel estimation, and equalization. Nowadays, many channel models concerned with either large-scale modeling and small-scale fast fading models have been established. However, with the development of some new techniques such as multiuser MIMO systems, vehicle-to-vehicle technique, wireless relay technique, and short-distance or short-range technique, novel wireless channel models should be developed to cater for these new conditions.

Researchers are cordially invited to contribute original research articles that will stimulate the continuing efforts to understand the mechanisms about radio wave propagations and wireless channel models under variant scenarios, and the evaluation of outcomes. We are particularly interested in articles describing novel wireless channel models. Potential topics include, but are not limited to:

• Radio wave propagation mechanisms under high-frequency band above 10GHz
• Climate impacts such as cloud, rain, and fog on radio wave propagation operation above 10GHz
• Radio wave propagation mechanisms for ultra-wideband systems
• Wireless channel measuring schemes for broadband communications systems
• Techniques about channel sounder
• Ray tracing techniques
• Satellite communications channel modeling
• THz communications channel modeling
• Propagation and channel modeling for cellular/LTE system
• Multiuser MIMO channel modeling
• Relay channel modeling
• Short-distance or short-range communications channel modeling
• Broadcasting channel modeling
• Wireless sensor networks channel modeling
• Vehicle-to-vehicle channel modeling
• Train-to-train channel modeling
• Propagation and channel modeling for tunnels
• Body centric channel modeling

Before submission authors should carefully read over the journal's Author Guidelines, which are located at http://www.hindawi.com/journals/ijap/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: