Introduction

Abstract

AbstractMobile networks have been growing rapidly in the past few years and this trend will continue in the foreseeable future. Indeed, mobile phone shipments are projected to reach 1.9 billion units in 2014, which is about 7 times that of desktop and laptop combined [1]. Mobile data traffic is predicted to increase by over 100 times in the next ten years [2]. The widespread popularity of mobile networks has been driven by continuing advances of technologies. On one hand, advanced wireless communication technologies (e.g., MIMO, OFDM) have drastically improved the communication efficiency in existing wireless networks (e.g., cellular networks, WLANs). On the other hand, advanced mobile devices (e.g. smartphones) equipped with powerful sensors (e.g., cameras) and high computing capability have enabled a wide range of applications on mobile platforms. As a result, mobile networks have nowadays become an indispensable infrastructure in people’s everyday life.KeywordsMobile UserReputation ScoreMobile Social NetworkingUser CooperationWireless Communication TechnologyThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.