HONET has evolved over more than a decade as conference that caters to various areas in Information and Communication Technologies (ICT) and enablers of technology. HONET' 2015 has 5G Technologies and Applications as thematic focus and is therefore envisioned to cover various areas of ICT ranging from physical layer to networking and e-applications. Consistent with the celebration of IYL' 2015 (International Year of Light) the Photonics tracks will span Lasers and LEDs from combinations to lighting, displays and light-based applications emerging from 'integrated photonics'. The Energy tracks will cover efficient energy production/saving technologies and harvesting renewable resources and intelligent monitoring based on smart micro-grids. The rapidly emerging area of Big-data will include data transport, storage, cloud computing and data-analytics as pertains to various sectors of industry and society form education to e-healthcare. The expanded scope for the HONET International Conference will cover R&D topics ranging from new materials and device technologies to intelligent systems consisting of communication networks, cyber-security, e-applications and social networks. HONET 2015 is technically co-sponsored by IEEE. Global Information and Communication Technologies (ICT) networks enable the high-speed internet by utilizing various photonic- and RF wireless technologies and networks spanning millions of fiber-optic links over the vast landscape and numerous satellites hovering over our planet. This technology base is the workhorse for ICT from the architectural, security, signal transport and application perspectives. Photonic, Optoelectronic, and Wireless modes of communication complement each other and enable various communication technologies that are now the life-lines of our increasingly interconnected world. These are the disciplines that have emerged from the fundamental electromagnetic phenomena and light-matter interaction and are the enablers of numerous engineering applications. The foundations are materials and devices forming "integrated-photonics" for electromagnetic-wave generation, propagation, and detection. In both RF and optical regimes semiconductors and optical materials are utilized in the form of nano- and meta-materials. Process advances in micro/nano-fabrication of photonics devices, components, and functional modules and sub-assemblies enable the rapid progress in these technical areas. The 12th International Conference will be hosted by NUST School of Electrical Engineering & Computer Sciences. HONET has its expanded scope to also include various symposia serving scientific, technical and commercial sectors from different regions with a broad global participation. It will cover multiple tracks in various communication disciplines, e-applications, Photonics, Energy and Big-data & Cloud Computing. Among several sessions it would include photonics for energy harvesting, smart grids, internet of things, cloud computing, global e-applications, communications, network-enabled sensors, signal processing, audio, image and video processing, network security and forensic, data compression, various nanophotonics for energy-harvesting devices and materials. HONET will include an Industry Expo as well as workshops/tutorials and specialized short courses. HONET' 2015 will span over three days of technical presentations as well as Industry Exhibits/Expo. Keynote addresses and various plenary sessions will set the theme and reinforce the overall objectives. The years HONET thematic focus is the "Information and Communications Technologies" (ICT). HONET has also a broader appeal of "Emerging/Enabling Technologies", in addition to various communications and networking areas, it covers photonics and other complementary communication technologies as well as optics and nanotechnologies in the environmental arena as well as medicine and information processing.