Radio spectrum is a valuable and scarce natural resource and the introduction of spectrum trading can optimize the use and improve the efficiency of this scarce resource. This paper gives a brief analysis of incentives to spectrum trading from both macro and micro perspectives, in which it focuses on the relationship between initial spectrum assignment… (More)
The rapid development of mobile commerce (m-commerce) has profound influence on logistics industry. Firstly, through analysis that combines m-commerce and the logistics industry, the paper draws a conclusion that main m-commerce applications in logistics industry include cargo tracking, mobile inventory management, vehicle positioning and M2M (machine to… (More)
The paper reviews research achievement of multi-source information service system based on cloud computing both at home and abroad, and presents a multi-source information service system four-layer architecture. This system architecture is characterized by openness and user-oriented ideas.
Traditional collaborative filtering algorithm is a weighted average prediction algorithm based on nearest neighbors' ratings. Besides similarity between users, trust and credit are also parameters to affect recommendation. This paper proposes a computational model of credit factor and then a collaborative filtering algorithm based on it. This model is based… (More)
This paper investigates China's efforts to develop its indigenous standard - TD-SCDMA and mainly focuses on the subsequent competition between TD-SCDMA & WiMax. By drawing upon actor-network theory (ANT), two counter-networks are setup and the competitions on technology, IPR, industry chain are presented. Furthermore, the social and institutional… (More)
Along with the continuous development of wireless communication technology and popularization of multi-mode terminal, the seamless fusion of various heterogeneous wireless networks has gradually become the trend of network development. The diversified forms of network access enable the multi-mode terminal to dynamically select the access network with the… (More)
Heterogeneous wireless network in the future will provide users with more service selections. The user can select the network with the best effect based on the specific demand and individual preference, and random selection will not only cause disorder of the network and low load efficiency but also impact the user's experience. The previous studies believe… (More)
Nowadays, cloud computing is considered as an internet evolution and will be the support for future internet development. In this paper, we abstract the load balancing problem in cloud computing as a model that a few of users occupying the computing resources, and introduce the price variation into the model. We formulate this problem as a cooperative game… (More)