emerging security threats and defense technologies in Mobile computing and Networking

With the rapid evolution of computing paradigms and the increasing popular of mobile devices, newly emerging mobile computing paradigms become more and more prevalent, such as crowd-souring computing, human-centred computing, mobile cloud computing etc. Moreover, with the emergence of new computing paradigms, communication networks experience unprecedented transformation which greatly improves their network capacity and thus Quality of Service. However, the newly developed computing and networking paradigms are also faced with many traditional security threats in the networking plane, as well as the computing knowledge plane, such as jammer attacks, wireless network intrusion, and those attacks on the content of the data, etc. Moreover, the newly emerging security threats such as network structure sniff, smart jammer attacks, and privacy leak also restrict the development of these new paradigms. The objective of this special issue is to collect different thoughts of the researchers and practitioners on the relevant topics. Given the current status, any enhanced technology addressing security issues arise in application layer, transmission layer and physical layer can be considered as the wide work space. In this issue, we mainly thought about getting some specific contributions on security issues in application and transmission layers. Though there were other submissions with high quality, because of the restrictions of the number of papers in one special issue, we have accepted only 6 papers while each paper has been reviewed by at least three experts to ensure the quality of this special issue. Let us give a brief introduction of the papers for a better understand of their contribution in this special issue's area. Wang et al., in their work " Jammer Location-oriented Noise Node Elimination Method for MHWN " develop an algorithm to eliminate noise nodes based on the Mean of Squared Dis